This file was created by scanning the printed publication. Text errors identified 

by the software have been corrected; however, some errors may remain.

Abstract Mills, John R.; Kincaid, Jonna C. 1992. The aggregate timberland assessment system—

ATLAS: a comprehensive timber projection model. Gen. Tech. Rep. PNW-GTR-281.

Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest

Research Station. 160 p.

The aggregate timberland assessment system is a time-based deterministic timber projection model. It was developed by the USDA Forest Service to address broad policy questions related to future timber supplies for the 1989 Renewable Resources Planning Act

timber assessment. An open framework design allows for customizing inputs to account for

regional and subregional growth and yield characteristics, predictions of change in land use,

assumptions of future timber management practices, and projections of future demand for

stumpage. As inputs, timberland inventories are aggregated into strata by age class, growth,

yield, and management characteristics. Strata are projected through time with the use of

yield tables and density change functions. Simulations can differ in size and complexity

from a single stratum to over 10,000. The projection system will be of benefit to those

requiring knowledge of current and future timber situations, including analysts, planners,

economists, and policy makers. This publication is intended to help users gain knowledge

and understanding necessary to make both basic and complex timber projections.

Keywords: Timber projection model, harvest scheduling, economic analysis, forest sector

analysis, forest policy.
Contents 1

1

2

5

6

6

7

7

7

10

10

11

11

12

12

13

14

15

15

17

18

19

21

21

23

23

24

24

24

26

27

27

27

28

29

37

38

41

42

43

Introduction

Input Hierarchy

Inventory

Area Change

Management Unit Area Change

Unstocked Acres

Management Intensity Shifts

Modeling Forest Growth

Relative-Density Change

Regular Growth

Growth on Harvest

Growth-on-Area Loss

Regeneration Growth

Growth-on-Area Gain

Total Periodic Growth

Growth Examples

Harvesting Methods

Endogenous vs. Exogenous

Commercial Thinning

Recovery From Area Loss

Partial Cutting

Final Harvest

The Atlas System

Model Hierarchy

The Inventory Unit Scanner

The Management Unit Scanner

The Harvest Unit Scanner

The ATLAS Program

Historical Perspective

Literature Cited

Appendix A: Descriptions of Input Card Types

Introduction

Numerical Values Represented in Input and Output

Inventory Unit Card Descriptions

Management Unit Card Descriptions

Harvest Unit Card Descriptions

Card Descriptions for Individual Harvest Units

Appendix B: Formats of Input Records

Inventory Unit Input Format

Management Unit Input Format
46 Harvest Unit Input Format

48 Appendix C: Atlas Output Files

48 Report Summary

48 ATLIST Output

49 FILE ATLIST

51 ATLIST Key

54 ATACRE Output

55 FILE ATACRE

54 ATHUR and ATMUR Output

56 FILE ATHUR

57 FILE ATMUR

57 ATHUR and ATMUR Key

58 ATTMU Output

59 FILE ATTMU

59 ATINV Output

59 FILE ATINV

60 ATLOG Output

61 FILE ATLOG

62 Appendix D: Program Descriptions

62 Program IUSCAN

62 Program MUSCAN

63 Program HUSCAN

64 Program ATLAS

68 Appendix E: Introduction to PC-ATLAS

68 System Requirements

68 Setting Up Your System

69 Batch Files

69 File Handling

70 Using RAM Memory

71 Rounding Problems

71 Appendix F: Comparison of Input and Output From ATLAS and PC-TRIM

71 Inventory

71 Management

73 Harvest

74 ATLAS

75 Appendix G: Examples of Input and Output

75 Example 1 Input Files

82 Example 1 Output Files

111 Example 2 Input Files

119 Example 2 Output Files

Introduction

Input Hierarchy

The aggregate timberland assessment system (ATLAS) is a tool developed to project

timber inventories into the future. The model simulates growth, harvest, and regeneration

of timber stands. Options allow for the representation of changes in timberland area and

the projection of trends in timber management. Investigative projections can be designed

to test the implications of various timber management strategies or to analyze policies

directed toward future timber supplies. Components of change are dependent on the

passing of time (periods) and the movement of acres among age classes. The basic

requirements for a simulation are a starting inventory, a base yield table, and estimates of

future harvest. The model outputs are designed to provide a complete accounting of

inventory, growth, acreage, and harvest for each period by age class and management

intensity. Options allow for period-specific detailed reports and all-period summaries.

The ATLAS system includes four computer programs written in American National Standards Institute (ANSI) FORTRAN 77. Figure 1 shows the relation between the programs

and input files. Three of the programs (IUSCAN, MUSCAN, and HUSCAN) check and

process input, and the fourth (ATLAS) makes the timber projections. To run the system,

the user must provide three input files: INVEN contains the starting acreage and volume;

MANAGE contains growth, yield, management alternatives, and area change parameters;

and HARVEST contains the desired harvest volumes and reporting parameters. A descriptive list of all input records and their format is presented in appendices A and B.

The model can be used to represent many different stand conditions. This flexibility allows

assumptions of real conditions to be translated into growth, yield, and management inputs.

For the tool to be most effective, the development of program inputs requires the user to

have a basic understanding of the model processes. Gaining this understanding can be

difficult for inexperienced users. The objective of this paper is to help the reader achieve

the basic knowledge of how the system works and its requirements and limitations. The

following sections present the concepts of inventory aggregation, area change, and the

basic algorithms underlying growth and harvest. The last section in the main body of text

reviews the model hierarchy. Appendices provide the detailed information required to

assemble input decks: card-by-card descriptions, input formats, output file interpretation,

and personal computer (PC) requirements. Appendix G puts everything together by

presenting two sets of example runs (inputs and outputs): the first example is a relatively

simple set up; the second is more complex and takes advantage of additional options.

As shown in figure 1, three input files are required to make an ATLAS simulation: INVEN,

MANAGE, and HARVEST. Each input file is functionally different, and to model the dynamics of a forest, a linking of these files is required. The files INVEN and MANAGE are

processed independently; however, the program HUSCAN links the contents of these files

with the contents of the file named HARVEST. Linking joins a static forest inventory with

dynamic parameters, and linking allows for the aggregation of individual inventory stands

into units of larger geographic boundaries.

In the terminology of ATLAS, the word "aggregation" describes the combining of individual

pieces of data into larger units. Smaller pieces of data generally cannot be modeled individually because the sampling error is too high, the amount of variability associated with

individuals in a population cannot be simulated, or the data do not include detailed enough

information. The structure of ATLAS allows the user to combine data to high confidence

levels. The timber stands in the forest inventory are frequently at the lowest level of aggregation. The user-supplied harvest often is at the highest aggregate level. The structure of

this aggregation in terms of linkages between the inputs is shown in figure 2. Timberland

1
Figure 1—Simplified flowchart of the four programs in the ATLAS system and the three required input files. Arrows

indicate the direction of information flow between inputs and programs.

inventories are assembled in what is called the inventory unit (IU). The input file INVEN

may contain one or several individual IUs. At the next highest level, each inventory unit is

assigned to a specific management unit (MU). Management units generally are developed

to represent the dynamics for a group of stands having similar characteristics. An MU

contains the growth, yield, area change, and harvest parameters essential for the assigned

inventory (up to 10 IUs may be assigned to one MU). The input file MANAGE is composed

of one or several management units. At the highest level of aggregation is the harvest unit

(HU). Harvest volume often is the variable for which the least detailed knowledge is available, and this allows harvest to be applied at a broad level. Projections of harvest volumes

are derived outside the model (they may be estimates, products of other models, and so

forth). The volume to be harvested is apportioned among the MUs assigned to the HU.

Within each period of a projection, the model can allocate one harvest value among up to

65 MUs. This allocation is based on several factors including available inventory, growth

rates, and harvest constraints. Up to 32 HUs may be added to the HARVEST file. Each HU

and all MUs and IUs linked to it are modeled separately. The linkage of lUs to MUs to an

HU is accomplished by assigning a specific identification code to each unit.

Inventory Timberland inventory is represented as acres and volume per acre by age class. The

volume per acre can be in any unit of measure so long as it is consistent with the base

yield table and harvest volumes. By default, the model allows for 18 age classes. (Changing the number of age classes requires adjustment of the PARAMETER statements within

each program.) The number of years represented by an age class must be consistent with

the length of the projection period; that is, inventory projected in 5-year periods would be

aggregated in 5-year age classes.

2
Figure 2—The linkage between input components in the ATLAS system. Starting with the initial inventory

at the top, aggregation increases in the direction of the arrows. Harvest units are independent of one

another.

For input to IUSCAN, acres and volume per acre are aggregated into lUs. The inventory

unit represents a stratification of the inventory; this is often by geographic region, owner,

forest type (or species), site, and so forth. Within an inventory unit, five management

intensities (MIs) are available for further stratification of the inventory. Regeneration,

growth, and harvest parameters may differ for each Ml to represent responses to alternative silvicultural treatments or variations in stand behavior due to the species composition.

When initially input, acres are assigned to a specific Ml. During the simulation, acres can

be moved (we say "shifted") among the MIs.

The following is an example of an IU:

Identification

number

14102 3 1

14102 3 1

14102 3 1

14102 3 1

14102 3 1

14102 3 1

Age class

0

1

2

3

4

5

Acres

43168

21933

40561

55898

134810

113990

Volume per acre

443.0

443.0

2000.2

3658.6

4590.4

4486.3

3
This inventory unit is part of one used in example 2 in appendix G. The first nine columns

identify the IU, the type of input record, and the Ml of the associated inventory. The next three

columns are for the age class; next are acres and volume per acre (in net cubic feet) for the

particular age class. This IU represents management intensity 1; medium site productivity

class; Douglas-fir forest type; forest-industry-owned timberland; the region of western Oregon

and Washington. (The complete IU in example 2, appendix G, includes inventory in MIs

2 through 5.)

Figure 3 shows how the above inventory fits into the input hierarchy of a simulation for the

forest industry ownership in western Oregon and Washington. Inventory is entered into lUs by

Ml and age class. Within the first Ml (MI-1), acres and volume may be subdivided by three

stocking classes (or levels). Parameters entered in the MU file define the range of these stocking levels (see MU card types 23 and 24, appendix A). Stocking levels were not modeled in

our example so the inventory has been placed in stocking level 1. Management intensities

2 through 5 do not allow for subdivision by stocking level. The only model action that can make

a difference between a projection of all inventory at one stocking level versus a projection of

inventory by three stocking levels is the restriction of acreage shifts. Only acres in stocking

level 1 may be moved to higher MIs. Unless it is desirable to restrict the acres shifting out of

MI-1, we recommend aggregating the inventory to one stocking level (as shown here). This

will save development time and reduce the size of files.

Another category in an IU is unstocked, or nonstocked, acres. Acres can be placed in the

nonstocked category when the beginning inventory is set up; however, they carry no volume

and have no associated age. When acres are removed from the nonstocked category and

placed in the regular inventory (regenerated), they are assigned to MI-1. Acres harvested from

any Ml can be placed in the nonstocked category. Nonstocked acres are counted as part of

the total acreage within an MU. (Note: In the set of MUs shown in figure 3, MU number 20 is

titled "Nonstocked Low Site." Rather than using the option to enter nonstocked acres within

an IU, a separate MU was created to carry all nonstocked acres. This configuration allowed

the nonstocked acres to carry low residual volumes, and it allowed for acreage control via the

MU area-change options.) For input format of unstocked acres, see IU card type 01 and

appendices A and B. For further discussion of unstocked acres and area change options, see

the section, "Area Change," below.

Up to 10 lUs can be linked to a single MU. This ability to assign multiple lUs to an MU does

not increase either the significance of the modeling detail or the resolution of the model

outputs. When multiple IUs are assigned to an MU, their inventories are combined to fit the

MU dimension, acres are added, and volume-per-acre values are recalculated. The MU

dimension is the same as that of a single IU. The dimension is 3 by 18 for MI-1 (MI-1 has three

stocking categories), and 1 by 18 for MIs 2 through 5. This combining of the inventories to the

MU level occurs in program HUSCAN. The combined (or linked) MUs and their associated

inventories are then treated as individual growth and yield modules. The lowest level of resolution in the output is at this MU level. (This is 18 age classes by five MIs. For reporting purposes, the three stocking categories in MI-1 are combined—the weighted average is reported.)

Area change, growth, and harvest are examined in the following sections. These processes

are modeled for the group of acres that make up an inventory cell. We will define the inventory

cell as an identifiable array variable within the ATLAS program at the MU level of aggregation.

This is acres and volume per acre of a single age class within a specific Ml. At the MU level,

each inventory cell is modeled independently. At this level of aggregation, growth, harvest,

and regeneration take place (and can be accounted for in output reports). The example IU

4
Figure 3—Expanded view of an inventory unit showing five management intensities (MI-1 to MI-5) and the organization of the acres and volume within MI-1. The linkage of inventory to the MU shows how one inventory might fit into a

simulation for a large area. (Gen. imp. is genetically improved stock; PCT is precommercial thinning).

presented earlier can be said to represent six inventory cells. Management intensity 1 is a

special case requiring some simplification. Within the ATLAS program, each age class in

MI-1 is actually represented by four cells: stocking level 1, stocking level 2, stocking level 3,

and the total of all three stocking levels (volume per acre in this total is a weighted average

of all three stocking levels). But because there is so little difference in the way the individual stocking levels are treated, we will refer to MI-1 as if we are dealing with one average

stocking level—one inventory cell. Throughout the rest of this document, the reference to

the inventory cell will be in context of the linked IU to MU module (this is the MU level).

Area Change It is at the MU level, or within the linked IU to MU module, that acres are accounted for and

area change takes place. During a simulation, inputs to the file MANAGE regulate both the

total acres and their distribution within the MU. Three types of area change are possible

within ATLAS. The first type is MU area change. Change in the MU area facilitates the

5
Management Unit

Area Change

Unstocked Acres

simulation of acres moving in and out of the timberland base or the simulation of acres

moving among MUs. The second type of area change is unstocked acres. Options allow for

movement of acres to and from the unstocked category. And the third type of area change

is the Ml shifting within MUs.

The total acres within an MU initially reflect the beginning forest inventory input in the

associated IU(s). Total acres in an MU can be changed to simulate shifts in forest ownership, timberland losses or gains from land-use changes, or long-term forest-type transitions. Entered in MU card type 11 are the total acres to be represented within the MU for

each projection period. Card type 11 is required only if the MU total acreage is to change;

when omitted, total acres within the MU remain constant (equaling the initial IU input). Card

type 11 has three companion card types that allow the assignment of acreage changes

(and inventory volume changes) to selected age classes (MU card types 12,13, and 14).

Although card type 11 contains absolute values (number of acres), the companion card

types require the entry of proportions.

When acres are gained, card type 12 allows for the distribution of incoming acres among

specified age classes, and card type 14 is used to specify the Ml to receive these acres

(only one Ml can receive acreage gain). When acres within an MU increase, gain in inventory volume within the specified age class is the product of the average stocking proportion

(MU card type 23 or 24) and the yield-table volume (MU card type 33).

When acres are lost, card type 13 is used to specify a distribution of the loss among age

classes or among a range of age classes (called an age-class group). Groups of age

classes may be specified for area loss because whether a specified age class will contain

enough acres to meet the requested loss may not be certain. Within an age-class group,

the area loss in any one age class is determined by the total acres to be lost, the proportion

of the loss assigned to the group, and the relative proportion of acres in the particular age

class as compared to the rest of the group. Should the age-class group not have enough

acres to fulfill the proportion assigned to it, the model will remove acres by defaulting to an

oldest first approach. If this happens, the deficit is made up by removing acres from the

oldest age class(es) in the inventory. Volume loss associated with area loss is based on

the number of acres removed and the inventory volume per acre of those acres (the

inventory ceil value). If there is the assumption that harvest takes place on the acres lost,

then MU card type 29 can be used to apply the area loss volume to the input harvest

request (this scenario could be used to simulate conversion of acres to a different forest

type—assuming an area gain in another MU is calibrated to keep total acreage in balance).

For input details about MU area change, see appendix A and MU card types 11,12,13,14,

and 29. Appendix G contains examples of area-change inputs.

Acres within each MU can be moved between the unstocked (or nonstocked) and stocked

categories. The beginning inventory may contain nonstocked acres initially assigned in the

IU input. These acres can be brought into the inventory (regenerated) via MU card type 21.

Entered in card type 21 is a proportion of unstocked acres to regenerate in each projection

period. By default, acres are regenerated to age class zero in MI-1. Once the simulation

begins, only acres harvested may be assigned to the unstocked category. Management

unit card type 22 is used to assign a proportion of the acres harvested to the nonstocked

category (by period). Shifts to and from the nonstocked category might be used to represent lags in regeneration. See appendices A and B for more detailed format information.
Management Intensity

Shifts

Modeling Forest

Growth

Relative-Density

Change

Within the IU file, acres in the beginning inventory can be assigned to any of the five MIs.

Shifting of Ml may represent trends in the application of alternative silvicultural treatments

or changes in stand composition after treatments. Each Ml has an independent set of

regeneration, growth, and harvest parameters entered in the MU input file (MANAGE). All

MIs are eligible to donate or receive acres from all other MIs. Acreage shifts between the

MIs can occur either at regeneration (age class zero—the default) or can take place for all

age classes up to a specified maximum age class. Acres do not change age classes when

they shift Ml. Inventory volume associated with acres that change Ml is carried with the

acres and added to volume that might already exist in the assigned Ml.

Shifting of acres among MIs is accomplished by entering (1) the maximum age class (age

limit) for which shifting will occur, and (2) for each period, the proportion of total acres in

the donating Ml to shift to the receiving Ml (of those at or younger than the maximum shift

age). Management unit card type 07 allows entry of the age limits for shifting. If this card

type is omitted, shifting will occur only at regeneration (age class zero). The proportion of

acres to be shifted each period is on MU card type 28. This proportion is applied to ail

acres in age classes equal to and younger than the age class specified on card type 07.

Each age limit and shift proportion is identified by the entry of the donating Ml (MIFR) and

the receiving Ml (MITO). Within each period, both acres gained via card type 11 and acres

restocked (from unstocked) via card type 21 are eligible for redistribution through Ml

shifting. For input details on Ml shifting see appendices A and B, MU card types 07 and 28.

For examples of usage, see example 2, appendix G.

In simplest terms, growth in ATLAS is represented by a periodic change in net volume per

acre. In a real system, growth is dynamic, it is continuous throughout any period. But the

addition of harvest and area change within the periodic model framework requires that

growth be specifically defined to include fundamental components of change measurable in

a real system. Figure 4 shows the order that ATLAS simulates various activities. Model

activities are sequential; acres and volume enter and leave the system at specific times. To

account for what might be called observable growth, in one period, only one class (or type)

of growth will be calculated for any one acre. What is reported as total periodic growth is

the sum of the individual calculations.

The model was programmed to simulate four classes of growth (regular growth, regeneration growth, growth on harvest, and growth on area change). The growth calculations

require parameters that are supplied in the MU input file. The inputs required for each Ml

include a base yield table, average stocking proportion(s), and coefficients for a densitychange equation (to adjust stocking proportions). The base yield table is simply volume per

acre by age class that is input in tabular form. All MIs within the MU are dependent on the

same set of density change coefficients. (For more detail, these inputs are described in

appendix A; see MU cards 23, 24, 30, 33, and 37.)

The concept of a stocking adjustment, or density change, is a key assumption for use of

yield tables to project inventories within ATLAS. Stocking, as defined in ATLAS, is a ratio

of the existing inventory volume per acre over the corresponding base yield-table volume

per acre. In simplified form, stocking in a single inventory cell of age class i can be represented as,

(1)

where S equals the current stocking ratio, V equals the inventory volume per acre, and Y
Figure 4—The order of occurrence of model activities in each projection period.

equals the base yield-table volume per acre. To define the single inventory cell as part of a

larger inventory, the subscripts j, k, and t could be added to represent Ml, MU, and period

(Y would not be subscripted by period).

The projected volume per acre within a cell is the product of the stocking ratio and the

appropriate yield-table value. The equation for relative-density change allows for periodic

adjustment of stocking. This procedure has its roots in the concept of approach-to-normal,

which assumes that over time stand stocking will asymptotically approach an equilibrium

representing the condition of a normal undisturbed stand (Chaiken 1939). Leary and Smith

(1990) and Mills (1990) have shown that a stocking adjustment mechanism can play a

central role in the projection of existing inventories with a fixed yield table. The mechanism

for relative-density change allows for the calibration of inventory growth rates to the yield

tables; it does not require the use of normal yield tables. This very concept is found in the

literature as far back as Chapman (1924).

The density-change equations available to a MU can be applied over a range of age

classes. Following are the forms of the density-change equation:

(2)

(3)

(4)

(5)

(6)

8
where S = stocking ratio,

i = age class,

t = projection period, and

B1,B2 = input coefficients.

Equations (2) and (3) are linear forms derived from McArdle and others (1961).' Equation

(2) calculates the full adjustment for a range of specified age classes. Equation (3) calculates a "half adjustment;" it returns half of the density adjustment that would be returned via

equation (2). This half-adjustment option is valid for age classes greater than those assigned the full stocking adjustment. The assumption behind the option for the half adjustment is based on the idea that older stands may exhibit slower rates of stocking change

than younger stands.

Equations (4) and (5) are quadratic forms of the adjustment equation. This form was

initially derived by Gevorkiantz and Duerr (1938) and later introduced to the predecessor of

ATLAS, the timber resource inventory model (TRIM; Tedder and others 1987), by Leary

and Smith (1990). As in the linear form, equation (4) makes the full stocking adjustment,

and equation (5) is for the half-adjustment. Equation (6) represents no change in stocking

density; constant density is an option only for age classes older than those assigned the

half-adjustment rate.

The stocking asymptotes for these equations that calculate relative density change can be

found by calculating,

AL=B1/(1-B2) (7)

when B1 and B2 > 0, and

AQ=B1/-B2 (8)

when B1 > 0 and B2 < 0;

Their prediction of a 10-year change in normality (stocking) for

second-growth Douglas-fir can be approximated when B1 = 0.11 and

Ba = 0.90.

Mills, John R. 1989. Inventory, growth, and management assumptions for the 1989 RPA timber assessment, final draft. 2 vol. On file

with: J. Mills, Social and Economic Values Research Program,

Pacific Northwest Research Station, P.O. Box 3890, Portland, OR

97208-3890.

9

where AL equals the stocking ratio being approached in the linear form of the adjustment

equation, and AQ equals the stocking ratio being approached by the quadratic form.

Stocking will approach this asymptote from either above or below, at a rate determined by

B1 and B2. The relation between the asymptote and the base yield table depends on stocking, growth in the inventory, and the yield table. The stocking asymptote associated with

normal yield tables generally is less than 1.00 (100 percent), whereas asymptotes associated with fully stocked empirical yields are greater than 1.00 (Leary and Smith 1990).

The model allows for two sets of the coefficients B1 and B2 to be entered for each MU. The

first set is for the stocking adjustment of the beginning inventory, and the second set will

adjust stocking only for acres regenerated within the MU. This second set of coefficients is

optional; if omitted, the model makes projections with the entered coefficients for both the

starting inventory and regenerated acres. The option allows for greater latitude in project-
Regular Growth

ing the growth behavior Of the initial forest inventory and the projected behavior of regenerated Stands. It makes it possible to calibrate the initial inventory to observed growth rates

while allowing the Stocking adjustment of regenerated stands to have independence in

slope of the adjustment and the asymptote approached. (The relative-density-change

coefficients are entered on MU card type 30; for details see appendices A and B.)

Regular growth occurs on acres that have volume at the Start Of the period, remain in the

inventory, and increase one age Class by the end of the period. Growth is calculated as the

difference in volume between the beginning and end of the period. (For the purpose of

explaining growth, we can say that the end of a period is equivalent to the beginning of the

next period.) In the absence of harvesting and area change, a base yield table and an

equation for change in relative density calculate growth for each age class of existing

inventory. The following formulation represents the summation of regular growth reported

for period t:

(9)

(10)

Growth on Harvest

where equation (9) equals the new volume per acre calculated in a single cell, and in

equation (10), TRG equals the total regular growth calculated for all cells under one base

yield table (the variable A represents acres in a cell with associated volume per acre V;

n is the oldest age class). Acres in age class n when time equals t remain in age class n

when time equals t+1 (assuming the acres are not harvested); however, acres achieving

the oldest age class will not necessarily stop growing. Even though the yield-table volume

no longer increases, acres in the oldest age class are subject to the effect of the densitychange equations. Growth in the oldest age class would be a result of a change in relative

density (assuming equation 2, 3, 4, or 5 and the stocking asymptote have not been

achieved).

The sequencing of harvest requires growth adjustments on harvested acres. We assume

that in a real system, inventory is distributed uniformly over each age class, and that for a

group of stands, harvesting and growth occur over the entire 5- or 10-year period. The

average volume harvested represents the beginning of the period value, plus one halfperiod of growth. In the model, however, harvest is calculated at the beginning of the

period, before regular growth takes place (this is an artifact of the model sequencing these

events; see figure 6 in appendix D). So were there no adjustment to growth, it would be

assumed that the entire harvest for the period took place at a single time. Barber (1985)

found that this kind of representation underestimates available harvest volume by one halfperiod of growth. If we looked at the inventory in the middle of the period, we would expect

that half of the acres would be in the next higher age class. The growth-on-harvest multiplier increases the harvest volume per acre, thereby correcting the underestimate. Harvest

volume in a single cell equals GHi

VltA(t; where GH is the growth-on-harvest multiplier for

age class i, and A is acres with volume per acre v. The following equation represents total

growth on harvest (TGH) as calculated for period t:

10
(11)

Growth-on-Area Loss

Regeneration Growth

where HA is the acres harvested in age class i, period t. The growth-on-harvest calculated

for harvested acres is added to the total growth in period t.

If chosen, the growth-on-harvest multiplier is applied to all four types of ATLAS harvest:

(1) final harvest, (2) commercial thinning, (3) partial cutting, and (4) harvest recovery of

volume on acres lost via area change. The multiplier should reflect the average expected

half-period volume gain on acres harvested. A simple way to calculate the multiplier is to

use the ratio of growth over inventory volume, commonly called growth percent. If, for

example, the period length is 5 years and annual growth for the harvestable age classes is

6 percent of inventory volume, then the total increase would be about 6 percent multiplied

by the number of years to the midpoint of the period (2.5). In this case, the multiplier would

be 15 percent; it would be entered on MU card type 37 as 1.15. The GH variable could be

the average for all harvestable i, as it was presented here, or GH can differ by age class

and Ml if additional detailed growth data are available.

Growth-on-area loss takes place on all acres (with volume) leaving the timberland base via

area change. As shown in figure 4, area loss occurs before regular growth. The assumption is that area loss really takes place over an entire period; therefore, growth normally is

expected to occur on most timbered acres leaving the system. Growth-on-area loss is

consistent with growth on harvest; the same multiplier is used for both. The growth calculation is made only for the acres and volume being removed from the inventory and only

after they have been subtracted. The growth calculation is simply the growth-on-harvest

multiplier multiplied by the volume per acre on the acres leaving the system. With the substitution of lost acres (LA) for harvested acres (HA), this is the same calculation as that

shown in equation (11). In the output reports of area loss, the growth is included in the

volume reportedly lost. In the output reports of growth, the growth gained by way of the

multiplier is included in the total periodic growth.

Regeneration growth is a special case of growth that is calculated when acres enter the

inventory in the zero age class. All additions of volume must be accounted for in total

growth. The initial volume for regenerated stands is determined by the base yield table and

an input parameter called the average stocking proportion (ASP) (also called the regeneration stocking ratio; for the TRIM model [Tedder and others 1987], refer to ASP as the

stocking level midpoint). When i=0, the initial regeneration volume per acre under each

base yield table can be represented by,

Vit = ASPYi (12)

Regeneration growth is set equal to this initial volume per acre. If i=0 and Yi=0, then Vit=0

and regeneration growth is zero. When acres enter the first age class where Y, is greater

than 0, the stocking proportion Slt is assigned the value of ASP; stocking in subsequent

age classes is a function of the relative-density-change equation.

11
Growth-on-Area Gain A calculation called growth-on-area gain is made because, like growth on harvest, it is an

attempt to overcome the sequencing artifact of a periodic model. Area gain (acres coming

into an MU) is sequenced after regular growth has been calculated. Within each age class

gaining acres, the incoming acres are assigned the volume per acre as determined by the

ASP multiplied by the base yield-table volume. This volume per acre is the same as Vit

from equation (12), with the difference that i is the age class to gain acres (the age classes

to assign area gain are chosen in the MU input file). If acres are added to a cell already

containing acres and volume, a new cell volume per acre is calculated as a weighted

average of the previous and added inventories. At this point in the calculation, the inventory

volume represents an end of the period value. Nothing more needs to be done with the

volume. But growth-on-area gain becomes important because we assume that actual area

change is distributed uniformly across the period. Because of this, we must attempt to add

to total cell growth the growth that these acres should achieve between the time they enter

the inventory and the end of the period (where they are actually added and assigned end of

the period volume). For modeling purposes, we assume area gain takes place in the middle

of the period, which means a calculation is needed to estimate what that midperiod volume

will be. Growth-on-area gain is simply the difference between the midperiod estimated

volume and the end-of-period assigned volume. The calculated growth-on-area gain is then

added to total growth. This is consistent with the structure of the model; area loss occurs,

regular growth takes place, then area gain occurs (fig. 4). When the area change represents acres changing management units, growth is neither missed nor double counted.

The midperiod volume per acre is calculated as a linear approximation of the difference

between an estimate of the volume at the beginning of the period and the assigned end-ofperiod volume. The calculation first requires the estimate of stocking for the beginning of

the period. Stocking is used to estimate volume, and growth-on-area gain (GOG) is half of

the difference in volume between the estimate for the beginning of the period and the endof-period (assigned) value. When age class i gains acres in period t, the following equations outline this technique:

(13)

(14)

where Vit is the end-of-period assigned volume, Si-1,t is a function of ASP, and GOGit is a

linear approximation of the difference between midperiod and end-of-period volume per

acre. Total growth-on-area gain in period t (TGOGt) represents GOGit multiplied by the

acres gained, GAit, and summed for all i.

No specific user input is required for the growth calculation; however, f(ASP) is an inverse

form of the equations for relative-density-change (equations 2 and 3). Should the MU be

using the nonlinear density change equations (equations 4 and 5), equation (13) is not

used and stocking is held constant so that in equation (14), Sl-1, t is set equal to ASP.

Total Periodic Growth The growth reported by ATLAS includes regular growth, growth calculated on all forms of

harvest, growth-on-area loss (TGOL), growth-on-area gain, and growth on regeneration.

The total components of growth have been expanded by the acre variable. Regeneration

growth comes only from age class 0 (i = 0), and Aijk represents the regenerated acres.

Total periodic growth for up to five yield tables (j), within m management units (k), can be

represented as:

(15)

12
Growth Examples This section provides a numerical example of the various ATLAS components of growth.

The values employed here are drawn from example 1 presented in appendix G; they include: inventory volume per acre, yield table volume per acre, average stocking proportion,

the coefficients for change in relative density, and the growth-on-harvest multiplier. This

example presents the calculation of stocking, change in relative density, regular growth,

growth on harvest, growth-on-area loss, and growth on regeneration. Within a single

period, the model growth components are mutually exclusive for any single acre.

The forest type presented here is oak-pine from the forest industry ownership of the

Northeast region. Age class 4 will be the starting point of the inventory. To keep the

calculations simple, we will assume 10 acres in the inventory rather than all 26,000 that

exist in example 1.

Inventory and yield table Age class Volume per acre Acres

Initial 1980 inventory 4 1,762 10

Oak-pine yield table 0

1

2

3

4

5

0

522

1,013

1,473

1,902

2,300

Average stocking proportion: 0.8858

Coefficients for relative-density change: 61 = 0.162, B2 = 0.890

Growth-on-harvest multiplier equals: 1.1904

The calculation of regular growth—Regular growth depends on the calculation of initial

stocking and the projection of stocking in the next period (where it corresponds to the next

oldest age class). Initial stocking, based on equation (1) is,

0.9264 = 1,762/1,902 ;

and equation (2) is used to adjust this value to 1990 as,

0.9866 = 0.162 + 0.890 * 0.9264 .

The new inventory volume per acre in 1990 (at age class 5) results from equation (9):

2,269 = 0.9866*2,300 ,

and total regular growth calculated with equation (10) is simply the difference between

volume this period and volume last period. For our 10 acres this is:

5,070 = 10* (2,269-1,762) .

Growth on harvest—This growth would be calculated on any of these acres if they had

been harvested (harvest occurs before regular growth—see fig. 4). If we assume five of

the acres were harvested, then total growth on harvest from equation (11) is:

1,677 = 5*(1.1904*1,762-1,762) .

13
The additional amount of volume added by growth on harvest is included in the reported

harvest volume and included in the report of total growth.

Growth-on-area loss—This is the same calculation as the growth-on-harvest calculation,

and it is made with the same multiplier. Growth-on-area loss is used to increase the volume

per acre for acres (with volume) that leave the inventory base. The growth-on-area loss is

added to total periodic growth. If harvest recovery of volume loss is invoked via MU card

type 29 (see the section "Harvesting Methods"), the growth volume is recovered as harvest

(this is the same as growth on harvest). If the inventory volume is not recovered via

harvest, the growth-on-area loss is part of the volume reported lost due to area loss. If 5

acres in age class 4 leave the timberland base via area loss, the growth-on-area loss would

be 1,677 cubic feet.

Growth-on-area gain—As shown in fig. 4, area gain takes place after regular growth. The

volume assigned is assumed to be the end of the period value (the end of one period is considered the same as the beginning of the subsequent period). Let us assume 10 acres have

moved into age class 5 of our inventory. The acres currently in age class 5 have just been

advanced from age class 4 via the growth subroutine. Equation (13) then calculates the

expected stocking at beginning of the period (10 years prior, or the age class 4 value) as,

0.8133 = (0.8858-0.162)/0.890 .

Growth on area as derived from equation (14) equals,

2,452 = 10* [(0.8858* 2,300-0.8133* 1,902)/2] .

Growth on regeneration—When acres enter the zero age class, regeneration is assumed

to take place. Growth on regeneration means equal volume assigned to acres as they

enter the inventory in age class 0. The acres may have been in the initial inventory and

previously been harvested, they may have been moved into the inventory out of the

unstocked category, or they may have been moved into the inventory via area gain. In any

case, if there is volume assigned to them in age class 0, it is called growth on regeneration.

Equation (12) is the average stocking proportion multiplied by the value in age class 0 of

the yield table. In this example, there is no volume per acre in age class 0 of the yield table,

and growth on regeneration would be zero.

Assuming 5 acres had been previously regenerated, as they move from age class 0 to age

class 1, regular growth will occur. The initial stocking will be set equal to ASP and volume

will be,

2,312 = 5*0.8858*522 .

Because age class 0 has no volume per acre, the volume assigned in age class 1 also will

equal growth.

Harvesting Timberland harvest is simulated at what is usually the highest level of aggregation. Harvest

Methods is usually allocated to a group of MUs (and their linked inventories). Management units are

assigned to HUs; up to 65 MUs can be assigned to a single HU. Harvest units are assembled in the file HARVEST and input to the program HUSCAN. The HUSCAN program links

the MU(s) to the HU(s) (recall that this program also links the IU to the MU). Each HU

contains one array of total harvest volume by period. This input harvest request is designated as either softwood or hardwood, or both (combined). The MU(s) linked to the HU is

14
Endogenous vs.

Exogenous

Commercial Thinning

assumed to include the forest types that most closely match the harvest fiber type. The

parameters controlling harvest at the inventory level are input as part of the MU.

Within the HARVEST input file, preceding the individual HUs, are simulation parameters

required by the program ATLAS. These include headings for reports, the initial starting

year of the simulation, and user requests for output reports. Within each HU, additional

simulation parameters are required. These include title of HU to be used in output reports,

the number of years in a simulation period, the number of periods to run the model, a limit

on the highest stocking proportion allowed in any MU inventory, warnings levels for high or

low stocking, and labels for MIs and forest types found in the linked MUs.

The ATLAS model allows four harvesting options; commercial thinning, volume recovery

from area loss, partial cutting, and final harvest. These four types of ATLAS harvest are

classified as either endogenous or exogenous. Final harvest and partial cutting are called

endogenous, whereas commercial thinning and volume recovery from area loss are referred to as exogenous. The difference is that endogenous harvest occurs in response to a

user-requested harvest volume entered on HU card types H3 and H4; exogenous harvest

is dependent only on parameters entered in the individual MUs. The volume to be harvested endogenously is dependent on both the user request and the amount of volume to

come from exogenous harvest. This is because exogenous harvest occurs before final

harvest or partial cutting (see fig. 4). The ATLAS harvest mechanism then subtracts any

exogenous harvest recovered from the user-requested harvest.

Figure 5 shows the linkage of MUs to HUs in the context of harvest flows. Harvest units

arid their associated, or linked, MUs are processed one at a time. (After their linkage in

HUSCAN, an IU and associated MU might be thought of as an inventory growth module.)

Each of these IU-MU modules is completely independent of the other. The endogenous

harvest requires a two-way flow of information. It is allocated to a IU-MU inventory based

on both the requested harvest value and the volume available for harvest in the MU (as a

percentage of the total available volume in all linked MUs). The exogenous harvest is

independent of the requested harvest; it is based on the inventory in either the age classes

assigned a commercial thinning or the recovery from acreage loss. Should exogenous

harvest be greater than the endogenous request, no endogenous harvest will take place

(this can happen if the simulation includes substantial loss in area coupled with the recovery of area-loss volume).

The total volume harvested is a function of a user request and the volume available in the

inventory. If the requested harvest is higher than available harvest volume, a message is

written to output file ATLOG (see appendix C) that all available volume is harvested, and

the simulation continues. Unsatisfied harvest is not carried into the next period. t h e

number of acres harvested in any period depends on the total volume requested and the

volume per acre in the harvestable age classes. Commercial thinning can take place within

any MU; however, final harvest and partial cutting are mutually exclusive for the same MU.

The MU designation for partial cutting or final harvest is made on MU card type 03. The

requested harvest volumes for the two treatments are separate entries in the HARVEST

input file. (Partial cut volume does not satisfy the final harvest requested nor vice versa

[see appendix A, HU cards H3 and H4].)

All commercial thinning options are set in the MU input file. Up to five thinnings can occur

in a single Ml. Commercial thinning reduces the cell volume. Thinning volumes are subject

to growth on harvest. The model simulates commercial thinning before it simulates final

15
Figure 5—The linkage of harvest to the inventory. Endogenous harvest is represented by the two-way arrows;

exogenous harvest is a one-way flow.

16
harvest, and the volume removed from thinning is applied toward the total harvest; this

reduces the volume to be removed in final harvest. Under commercial thinning, all acres in

the designated age class get treated regardless of the requested total harvest.

The inputs required for thinning are a base yield table and the associated base thinning

volume(s). These inputs must be coordinated. The thinned volume should equal the

volume removed from the base yield table at the chosen thinning age class(es), and the

yield table needs to reflect the volume trajectory of a treated stand. The yield table is a

growth guide curve; the value entered as the base thinning volume (MU card 34) may not

be the same volume subtracted from an inventory cell. The volume subtracted from the

inventory is the product of the base thinning volume and the ASP (entered on MU card 23

or 24). When i is the thinning age class, the equation,

(16)

calculates the residual cell volume per acre (RV) for a thinning in management intensity j

when the base thinning input is BT. The volume reported as commercial thinning is

BTijASPjGHijAij This is the thinning volume per acre inflated by growth on harvest and the

acres in cell ij. This total thinned volume will reduce the amount of the endogenous harvest

required to meet the user request.

In ATLAS, the thinning treatment does not change cell stocking density. This is because

the treatment and subsequent response are to be reflected in the base yield table. The

yield-table value for the age class after the thin, Yl+1 j, should represent a stand that began

as Yi, j, was thinned at midperiod, and grew for the remainder of the period to age class i+1.

In the linear form of the relative density change equation (equation 2), cell volume per acre

in the period after thinning is determined by,

(17)

where it can be seen that for the purpose of calculating stocking, the thinning volume is

added back to the residual cell volume. It is important to remember this when developing

thinning yield tables. The removal of thinning volume per acre does not change stocking;

therefore, the density standard (yield table) must change. The density standard and

change equation work together. The yield table should reflect the postthinning density, and

the change equation will continue to adjust the relative density in relation to that standard.

Recovery From This exogenous harvest depends on a loss of timberland area from the MU. This means

Area Loss that acres on MU card type 11 decline from one period to the next. Should area loss occur,

MU card 29 can be set to recover a proportion of inventory volume from the acres removed. In this case, the word "recovery" means to count as harvest. Two card type 29s are

allowed, one for each fiber type (hardwood and softwood). Up to 100 percent of the volume

on acres leaving the MU base can be applied toward harvest.

This harvest mechanism might be used to model the conversion of acres from one forest

type to another (that is, natural to managed forests). Under this scenario, acre declines in

one MU can be matched with acre additions to another MU. This recovery should be

somewhat consistent with the expected harvestable volume for age classes leaving the

inventory. The MU card 13 allows for age-class control of area loss. It might not be realistic

to expect 100-percent volume recovery if area loss is occurring in age classes under

minimum harvest age. The MU cards 11,13, and 29 need to be considered together.

17
Partial Cutting The partial cutting concept assumes a treatment that removes older trees from within a

mixed-age stand. After treatment, the residual stand will have volume and growth attributes

of a younger stand. In ATLAS, partial cutting is accomplished by removing cell volume in a

"reverse growth" fashion and, in doing so, moving acres to younger age classes. Compared to commercial thinning, the volume removed in this treatment is not easy to predict.

The amount of volume removed from a treated cell will depend on the base yield table,

current cell stocking, and the stocking adjustment parameters. The number of acres in a

cell that will be treated depends on the total available partial cut volume, the volume

available in the cell, and the total partial cutting harvest request. Within an MU, partial

cutting and final harvesting are mutually exclusive.

Three special inputs are required in a partial cutting MU. These are the harvest type

selection (MU card 03), the partial cutting age classes (MU card 40), and the minimum

stocking proportion (MU card 41). Card types 03 and 41 are rather simple: the first denotes

that partial cutting, rather than final harvest, will take place; the second does not allow cells

with stocking less than a lower limit to be treated. The card type 40 inputs determine, cell

by cell, the change in age class that will be associated with a treatment. The user must

decide, for age classes selected on card type 40, which target age class to assign

posttreatment residual stands to. Unlike commercial thinning, the mechanism does not

necessarily treat all acres within a cell, but instead, the treatment acts to remove only the

acres necessary to fulfill the partial cut volume request.

In the partial cutting calculation, the model first determines the total partial cutting volume

available in the inventory (from the partial cutting MUs). The process involves taking the

difference between current volume and residual volume and adding growth on harvest. The

residual volume represents the volume when acres in each cell are moved (or cut) to the

age assigned on card type 40. This residual volume is calculated from the inverse form of

the linear relative-density-change equation:

(18)

where Si-1 is stocking in the previous (next youngest) age class given current stocking (Si).

When the acres removed from a cell are assigned to a younger age class, a form of

equation (18) is used to determine the new volume per acre associated with the younger

age. If m is the posttreatment, or target, age class, then we can let f(Sl) equal the new

stocking in age class m found by recalculating equation (18) i-m times (subject to the

limitation that the new stocking proportion remain positive and not increase in value). New

volume for acres treated in cell Vit can be expressed as,

(19)

where TVmt equals the volume after treatment at age class m. The volume removed from

treated acres is equal to Vit - TVmt. The treated acres are removed from their original cell

and added to any existing acres in the target age class (age class m). The new volume per

acre in a cell of age m (Vmt) is a weighted average equal to the initial volume in m plus the

residual volume TVmt on the treated acres. The acres not treated in cell Vit retain their

original volume per acre and are subject to the regular growth calculation.

18
The treatment begins with the youngest designated age class and advances to the oldest.

This is a relatively simple process; however, harvest takes place before growth, and

treated acres are not added back into the inventory until after growth takes place. This

means that in the period of treatment, the residual inventory on treated acres receives no

regular growth. If the treated acres were added to the target age classes before growth,

then by the end of the period they would be one age class ahead of the target age class. If

partial cutting is implemented, an assumption must be made as to the growth response of

partial cut acres. One might assume that treated acres undergo a response lag. If so, can

growth on harvest be calibrated to capture most of the net growth on acres treated during

the period? This area is open for user experimentation. Research currently is underway to

validate the partial cutting mechanism in ATLAS.

Though final harvest is not explicitly an option for an MU implemented for partial cutting, a

target age set to equal 0 will have the same effect. When this is the case, treated acres are

moved to the zero age class; all volume is counted toward harvest, and the acres will be

eligible for regeneration. If several age classes (above the minimum harvest age) are

assigned a target age of 0, the harvest is proportioned among them by the available volume

in each age class. In this kind of harvest, the number of treated acres in a cell is relative to

total available volume and the volume per acre, so unless the requested harvest volume

cannot be satisfied, a distribution of untreated acres will be maintained in the inventory.

Final Harvest Final harvest is a treatment analogous to clearcutting. All volume is removed from acres

treated by final harvest. After treatment, acres can be regenerated or be placed into the

nonstocked category. Like partial cutting, the percentage of total HU harvest assigned to

an individual MU is based on that MU's proportion of the total final harvest that could be

supplied by all MUs. Available MU harvest volume is defined as all volume on acres at or

older than the minimum harvest age class(es). The minimum harvest age class, MU card

type 08, is Ml specific (see appendix A.) In each age class, the total available harvest

volume includes the addition of growth on harvest. The total available (TA) harvest volume

within an HU can be represented as,

(20)

which is the product of acres, volume per acre, and the growth-on-harvest factor, when N

equals the number of MUs in the harvest unit; j is the Ml within MU k; and for each j, i

ranges from the minimum harvest age m to the oldest age class n. The total harvest

assigned to MU k (Hk) is then,

(21)

where HR equals the harvest requested on HU card type H3 (the same proportioning

scheme with a harvest request on HU card type H4 is used to assign Hk for partial cutting).

If the commercial thinning option was chosen, HR would already have been reduced by the

sum of all commercial thinnings or,

19
(22)

where i equals the commercial thinning age class(es) associated with each MU3

. The

number of acres to be final harvested in cell ijk, when i > m, will depend on the cell volume

per acre (Vijk), the final harvest option chosen, and the total harvest assigned to the MU

(Hk). Within an MU, the harvest is distributed similarly among MIs as its distribution was by

MU. The distribution is based on a percentage of the total amount available, but this calculation is age class by age. How the calculation is made depends on the final harvest option

chosen. Two final harvest options are available: oldest first and proportion by age class.

The option is MU specific; it will apply to all MIs within an MU.

Oldest first—This final harvest option is what its name implies—oldest first. Volume from

all MIs is first removed from the oldest age class starting at n, and then the next youngest,

n-1, and so on until either Hk has been met or all volume in age classes from n through m

has been removed (TAk. If TAk is less than Hk, the requested harvest is not met, an MUspecific message is written to file ATLOG, and the simulation continues (missing the cut

request is not considered to be a fatal error; when this happens the output file ATLIST will

contain a negative value under the heading Com Dif in Block F, see appendix C). When Hk

is assigned, volume is removed proportionally across all MIs, one age class at time. This

means that the oldest age class within the MU to have volume is harvested before any

younger age classes in other MIs are treated. The following example illustrates this point.

Suppose an MU has two MIs (MI-1 and MI-2) and is assigned a harvest value of 1,000.

Now assume the inventory in MI-1 has a volume of 500 in age class 8 and a volume of 300

in age class 7; MI-2 has 0 volume in age class 8 and a volume of 700 in age class 7. Let

us also assume that the minimum harvest age class is equal to 7 for both MIs, which

means the available harvest volume is 1,500 (for simplicity we will ignore growth on

harvest). The oldest first harvest mechanism would remove all 500 from MI-1 age class 8

and assign the remaining 500 to age class 7, to be divided between MI-1 and MI-2 in

proportion to existing inventory; 30 percent (150) would be harvested from MI-1, and 70

percent (350) would be removed from the inventory in MI-2.

Proportion by age class—This final harvest option allows Hk to be removed across a

range of age classes. Proportioning the harvest across several age classes addresses a

criticism often leveled at the oldest first scheme; that is, the oldest first mechanism tends

to truncate the distribution of inventory by age classes by eliminating the older age classes.

(Though many forests are managed this way.) The harvest is proportioned by age class by

assigning a percentage (Pik) of the harvest (Hk) to age classes m through n on MU card

type 38. The value assigned to each age class is constant over time. For each k chosen to

have this harvest option,

(23)

Final harvest also is reduced by any volume recovered from area

loss (MU card 29) when MU acreage is declining.

20
Like oldest first, this option is not Ml specific. The harvest assigned to a cell of age class i

equals HkPlk. Like the oldest first mechanism, the amount of harvest assigned to age class i

of Ml-j can be represented as,

The ATLAS

System

Model Hierarchy

If HkPlk is greater than the available harvest volume AijkVijkGHijk, the proportioning mechanism harvests all volume in age class i and defaults to the oldest first method (as described

previously) to supply remainder of HkPik. If the harvest is great enough, this too will lead to

a truncated age class distribution.

This is not the same proportioning scheme referred to in "Partial Cutting" when zero is the

target age class (though this will mimic final harvest). Here a proportion of the harvest

request is allocated to the particular age class. In partial cutting, the harvest is allocated

based on volume available among the age classes. In the partial cutting MU, it is possible

to simulate a third type of final harvest by assigning target ages of 0 for all harvestable age

classes (providing the yield-table volume per acre is 0 in age class 0). Doing this will

proportion the harvest across age classes by availability, and unless the harvest (Hk) was

greater than or equal to the total available MU volume, the distribution of acres across the

m though n age class will not be subject to truncation. Brooks (1987) employs a similar

mechanism to proportion final harvest in the SPATS model.

This section describes, in detail, the link among input files, the computer programs, and the

output files. It includes descriptive information that may seem redundant to some readers;

however, we feel the consistency will help less experienced users (and those who have not

read the first section).

The programs and their inputs were defined by the natural breaks in a hierarchy of inventory, management, and harvest. Data in each category are entered into a separate file;

each file is scanned by a corresponding program to check for data errors and process the

data into a form useful for retrieval by a subsequent program. Each of the three scanning

programs writes a report file, which can be printed or examined in an editor, and a binary

file used by another program in the system. Figure 6 illustrates these links.

The beginning timber inventory is subdivided into IUs; an IU contains acres and volumes

per acre for existing age classes in one to five Ml categories. These data comprise file

INVEN, which is processed by program IUSCAN. The IUSCAN program writes report file

IULIST and binary file IURAF. (The letters RAF stand for random access file, which is

organized to permit retrieval by record-location index.)

The management information is entered by MU; 1 to 10 lUs subject to the same growth

and yield parameters are assigned to an MU. The MU growth, harvest, land shift, and

regeneration options are specified in file MANAGE, which is processed by program MUSCAN. The MUSCAN program writes a report file MULIST and binary file MURAF.

The harvest information is entered by HU; from 1 to 65 MUs can be combined for harvesting and assigned to each HU. The harvest requests, report requests, output labels, and

other simulation parameters are specified in file HARVEST, which is processed by program

HUSCAN. The HUSCAN program links lUs and MUs by reading the previously processed

21
Figure 6—Detailed diagram of the ATLAS system programs, input files, and all output files.

inventory and management data in binary files IURAF and MURAF. The HUSCAN program writes report file HULIST and binary file BIGRAF. The file BIGRAF contains the

complete requirements of the simulation program ATLAS.

The ATLAS simulation program produces up to six output files. The amount of detail in

outputs is specified by the user. Options range from projections of input components at the

MU level by chosen year, to general summary reports of projection periods. One output file

includes a period-by-period report of any internal or runtime errors. An acreage report

includes the number of acres harvested, regenerated, and in the inventory by Ml within

each MU.

22
The Inventory

Unit Scanner

The Management

Unit Scanner

The Harvest

Unit Scanner

The inventory data describing the initial status of the timberland are supplied in file INVEN

to program IUSCAN. For each IU, the program reads, prints, and checks the input data,

which are acres and volumes per acre. Then IUSCAN computes inventory totals, writes the

data in a single record on a random access file called IURAF, and prints a report on file

IULIST. The RAF is used to make retrieving the information easy for subsequent programs,

and data need not be translated into and from formatted forms, thereby saving input time.

After all lUs have been scanned, the program sorts the IU identifying codes into ascending

order and writes the sorted list with accompanying record location indices on the IURAF.

The creation date and time, IU count, and record location indices of the sorted list are

written on the IURAF key record. The IUSCAN program also prints the sorted IU codes on

IULIST. This arrangement of information permits the later program to readily locate the IU

information for a specific IU.

The IUSCAN program output can be examined for errors. The program lists a summary to

the standard output unit, (either the CRT screen or printer), records the program's progress, and provides a count of errors detected. If no errors are found, printing or editing the

IULIST file can be omitted. If errors are detected, the IULIST file contains details of the

error. An output file called IUQUIZ4

 is written specifically to test the operating system for

successful completion of the IUSCAN program, so that command files may proceed with a

stacked set of program runs. If any error in IU data is found, IUQUIZ will not be created.

The management data used to project future inventories are supplied by the file MANAGE

to program MUSCAN. For each MU, the program reads, prints, and checks the input data,

which include yield tables, thinning volumes, stocking proportions, area shifting limits, and

proportions. The MUSCAN program supplies default values for many of the choices. A

particularly convenient feature is the user-default value, a single value that can be used for

all age classes or all periods instead of keying in the same number several times. If a

constant proportion of unstocked acres is to be restocked each period, the user-default

value can be set to that constant, and the program will use that value for all periods. Or a

sequence of softwood proportions of volume can be provided for specific age classes

0 to 4, and the user-default value is used for all other age classes.

All specified and default values are written in a single record on the RAF named MURAF,

and a report is written on file MULIST. After all MUs have been scanned, the program sorts

the MU identifying codes into ascending order and writes the sorted list with accompanying

record location indices on the MURAF. The creation date and time, MU count, and record

location indices of the sorted list are written on the MURAF key record. The MUSCAN

program also prints the sorted MU codes to MULIST. The arrangement is parallel to that

for the IU data.

The MUSCAN program output can be examined in the same way as the output for IUSCAN. The summary of program progress and the count of errors are printed, and the

MUQUIZ file provides a similar function as IUQUIZ.

The harvest data and labels are supplied in file HARVEST to program HUSCAN. The

general information, such as title, starting year, and report requests, are read, printed, and

checked first. For each HU, the program reads, prints, and checks HU data and then looks

Note that PC-ATLAS does not write the scanner "QUIZ" files to

disk. During program execution, screen output will alert users to the

simulation progress and error status.

23
The ATLAS Program

Historical Perspective

in the sorted MU codes for the MUs belonging to the HU, and in the sorted IU codes for the

IUs belonging to each MU. Inventory data are summed across IUs and reported by MU.

For each MU, the MU data and the summed inventories are included on a single record in

the file BIGRAF. The BIGRAF key record contains the general information and the record

location indexes of each MU and HU. Reports are written to file HULIST, and a simplified

hierarchial tree of the HU, MU, and IU links is listed in file TREE.

Errors in HUSCAN can include illegal harvest data or incorrect references to MU or IU

data. The summary of program progress and the count of errors are listed on the screen,

and details appear on HULIST, in a parallel mode to IUSCAN and MUSCAN. The HUQUIZ

file also signals the error-free completion of HUSCAN.

By the time ATLAS is run, most errors should have been found and corrected, so that

ATLAS will have correct values to compute with. The programs generally screen legal

ranges, so wrong values within the ranges will not be caught (many of these legal ranges

are guesses as to probable ranges). There also are coordinated values that must be

complementary to work successfully, and the programs do not check all possibilities. Some

required data cause a signal that values are missing, but most missing data merely cause

the use of the defaults. During assembly of a data set, for example, inclusion of yield tables

for all management intensities must be checked by the user. We recommend printing and

reviewing the IULIST, MULIST, and HULIST files during development of a new ATLAS

data set.

This model represents another step in the evolution of systems designed to predict the

future based on what we know about the past and the present. The ATLAS system was

developed to project the National timber supply for the 1989 Renewable Resources Planning Act (RPA) timber assessment (Haynes 1990). For this application, ATLAS was a

subcomponent of what is referred to as the TAMM90/ATLAS model. This system represents the state-of-the-art in forest sector projection models. The TAMM forest economic

model (timber assessment market model; Adams and Haynes 1980) was used in both the

1979 assessment and the subsequent 1984 assessment update. The principle inventory

projection mechanism used previously with TAMM was a diameter-class inventory model

known as TRAS (Larson and Goforth 1974).

The programming of ATLAS was done by Jonna Kincaid on a VAX 8820 computer at the

University of Washington, Seattle.5

 The design was based mainly on the TRIM system

developed for use with TAMM in the Southern fourth forest study (U.S. Department of Agriculture 1988). The TRIM model is based on the timber resource economic estimation

system (TREES; Tedder and others 1980). The TREES model was developed at Oregon

State University for use in a comprehensive analysis of the timber resources in Oregon

(Beuter and others 1976); TREES was again used in an update of the earlier study (Sessions and others 1990). All three models have many of the same data requirements and

algorithms, but improvements in ATLAS include a reorganization of model sequencing,

more direct control of area change, the addition of partial cutting, increased execution

efficiency, and a reorganization of output reports that includes comprehensive accounting

The use of trade or firm names in this publication is for reader

information and does not imply endorsement by the U.S. Department

of Agriculture of any product or service.

24
o f acres a n d v o l u m e from period t o period. B o t h T R I M a n d A T L A S c a n b e classified a s

deterministic, because they do not have harvest optimization options such as those in

TREES; harvest must be specified by the user.

In the RPA application, privately owned timberland was aggregated by eight timber supply

regions, two ownership groups, and two fiber types. Within each region, up to nine timber

types and up to three site classes were identified.6 For three regions, the option to simulate alternative management added another five categories. The timber inventory within a

category was aggregated across 18 available age classes. Periods and age classes were

5 years for Southern U.S. regions and 10 years elsewhere. Growth and yield inputs were

calibrated to type- and site-specific conditions at the region-owner level of aggregation. The

input volume units were cubic feet per acre for inventory and yield tables and million cubic

feet for harvest requests. Harvests volumes were calculated through the interaction between TAMM and ATLAS.

The ATLAS model is available in three compatible versions: TAMM90/ATLAS, stand-alone

ATLAS for mainframes, and PC-ATLAS for microcomputers. Input files are transportable

between model versions.

6

These limits on the number of types and sites allowed within an HU

are based on the number of heading labels available for output. By

sharing titles assigned in the file HARVEST, additional types and

sites may be carried within an HU. For more information see

appendix A.

25
Literature Cited Adams, Darius M.; Haynes, Richard W. 1980. The 1980 softwood timber assessment

market model: structure, projections, and policy simulations. Forest Science Monograph

22. 64 p.

Barber, Richard L. 1985. The aggregation of age classes in timber resource scheduling

models: its effects and bias. Forest Science. 31 (1): 73-82.

Beuter, John H.; Johnson, K. Norman; Scheurman, H. Lynn. 1976. Timber for Oregon's

tomorrow. Res. Bull. 19. Corvallis, OR: Oregon State University, Forest Research Laboratory. 111 p.

Brooks, David J. 1987. SPATS: a model for projecting softwood timber inventories in the

Southern United States. Res. Pap. PNW-RP-385. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 23 p.

Chaiken, L.E. 1939. The approach of loblolly and Virginia pine stands toward normal

stocking. Journal of Forestry. 37: 866-871.

Chapman, Herman Haupt. 1924. Forest mensuration. New York: John Wiley & Sons. 557 p.

Gevorkiantz, S.R.; Duerr, W.A. 1938. Methods of predicting growth of forest stands in the

forest survey of the Lake States. Economic Notes No. 9. St. Paul, MN: U.S. Department of

Agriculture, Forest Service, Lake States Forest Experiment Station. 59 p.

Haynes, Richard W. (coord.). 1990. An analysis of the timber situation in the United States:

1989-2040. Gen. Tech. Rep. RM-199. Fort Collins, CO: U.S. Department of Agriculture,

Forest Service, Rocky Mountain Forest and Range Experiment Station. 269 p.

Larson, R.W.; Goforth, M.H. 1974. TRAS: a timber volume projection model. Tech. Bull.

1508. Washington, DC: U.S. Department of Agriculture, Forest Service. 15 p.

Leary, Rolfe A.; Smith, W. Brad. 1990. Test of the TRIM inventory projection methods on

Wisconsin jack pine. Canadian Journal of Forest Research. 20(6): 774-780.

McArdle, Richard E.; Meyer, Walter H.; Bruce, Donald. 1961. The yield of Douglas-fir in

the Pacific Northwest. Tech. Bull. 201. Washington, DC: U.S. Department of Agriculture,

Forest Service. 74 p.

Mills, John R. 1990. Developing ATLAS growth parameters from forest inventory plots. In:

LaBau, Vernon J.; Cunia, Tiberius, tech. eds. State-of-the-art methodology of forest inventory: a symposium proceedings; 1989 July 30-August 5; Syracuse, NY. Gen. Tech. Rep.

PNW-GTR-263. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific

Northwest Research Station: 112-118.

Sessions, John (coord.). 1990. Timber for Oregon's tomorrow: the 1989 update. Corvallis,

OR: Oregon State University, Forest Research Laboratory. 183 p.

Tedder, P.L.; La Mont, Richard N.; Kincaid, Jonna C. 1987. The timber resource inventory model (TRIM): a projection model for timber supply and policy analysis. Gen. Tech.

Rep. PNW-GTR-202. Portland, OR: U.S. Department of Agriculture, Forest Service,

Pacific Northwest Research Station. 82 p.

Tedder, Philip L.; Schmidt, James S.; Gourley, Jonna. 1980. TREES: timber resource

economic estimation system. Volume I: a user's manual for forest management and

harvest scheduling. Bull. 31 a. Corvallis, OR: Oregon State University, Forest Research

Laboratory. 81 p.

26
Appendix A:

Descriptions of

Input Card Types

Introduction

Numerical Values

Represented in Input

and Output

U.S. Department of Agriculture. 1988. The South's fourth forest: alternatives for the

future. For. Resour. Rep. 24. Washington, DC: U.S. Department of Agriculture, Forest

Service. 512 p.

This appendix describes input records by card type. It has three sections, one for each

input file. The 80-column format of each card type can be found in appendix B.

Each card type description includes the variable name and type used in the program

source code, default value if card is not used, range of legal values, and in some cases the

associated card types. Listed here are parameters used to describe ranges and limits:

AC—Age class. Length in years equal to period length (LENPD on HU card H1). Largest

value allowed equals MAXAGE.

AOP—Age or period. A numeric input for card types that contain variables arrayed by age

class or projection period. The value is an index that corresponds to the age class or period

associated with the first entry on the record (the entry in data field 1).

MAXAGE—The highest age class allowed; value is set with parameter statement in program source code. The default setting is 17, meaning 18 age classes are available (0-17).

MAXSIM—The maximum number of periods ATLAS will simulate at one time. The default

parameter setting is 12.

Ml—Management intensity (1-5). Ml identification is supplied as input and it also is used in

ATLAS programs as an array indexing variable.

MT—Management type (1-8). Used in the ATLAS programs as an array indexing variable.

MTs 1 -3 are used to represent Ml 1, stocking levels 1 -3; MT 4 is the sum or average for all

of Ml 1; MTs 5-8 represent MIs 2-5.

The diagnostic output reports, or "dumps," are not covered in detail. They originally were

development tools used for program debugging and system testing. It was assumed few

users would need them. The dump routines will produce output of variable values by

subroutine for each period. It is suggested that programmers attempting to change the

source code become familiar with the dumps because, though voluminous, the reports can

be of value.

This appendix is not intended to give detailed explanations of inventory, stocking, growth,

area change, and harvest. For more information on these topics, see the appropriate

sections in the main text.

Input—Numbers representing area and volume can be input in any unit of measure (that

is, board feet or cubic feet, acres or hectares, and so forth), but those units must be used

consistently in all inputs. The same measure of volume per unit area must be used in both

the inventory entered in INVEN and the yield table(s) entered in MANAGE. The same

standard also must be used when the removal volume is entered in HARVEST. The same

measure of area must be used for both the inventory in INVEN and area projections in

MANAGE.

There are, however, important differences in the values of units entered in the three input

files. The volume per unit area entered in INVEN and the volume per unit area entered for

Appendix A 27
the yield table(s) in MANAGE should be in the same units, but the volume entered as the

periodic removal request in file HARVEST is in millions. The area entered in INVEN and

the area projection entered on card type 11 in MANAGE are not of the same units. The

entry in INVEN is in single-unit values, and the card type 11 entry is read as millions. Both

the harvest request and the area projection allow for three or more decimal places.

Output—All output is by default expressed in millions (with three decimal places). The

modeling is done in single units and rounding does not occur until time of output. This is

accomplished via a variable, XMILL. Within the HUSCAN and ATLAS programs, XMILL

has been set to equal 1000000.0. Within ATLAS, the area projections entered in MANAGE

and the removal entered in HARVEST are both multiplied by XMILL so that the entire

simulation takes place in single units. Output of area and volume are then divided by

XMILL in the various report-writing subroutines. If an alternate unit value is desired, the

user can change XMILL and recompile the various programs (the projected area and the

harvest must be in the same units as XMILL).

Inventory Unit Note: There is no IU card type 2.

Card Descriptions

IU card type 1, unstocked acres (no distinguishable timber stand)—

Real variable UNSIU.

Acres in unstocked category.

Default is 0.0. Legal values are 0.0 to 10,000,000.0.

IU card type 3, regular acresSupply cards in ascending numerical order of Ml, and within Ml, in ascending numerical

order of age class. No entry needs to be made when age class has no associated acres.

For management intensity = 1:

(An option for MI-1 is to stratify the inventory by three stocking levels.)

Integer variable Ml.

Management intensity.

No default when acres are present. Legal value is 1.

Integer variable AC.

Age class.

No default when acres are present. Legal values are 0 to MAXAGE.

Real variable ACIU(AC,1).

Acres in each age class for MI-1, stocking level 1, which translates to management type 1.

Default is 0.0. Legal values are 0.0 to 10,000,000.0.

Real variable VPAIU(AC,1).

Existing volume per acre in each age class for MI-1, stocking level 1, which translates to

management type 1.

Default is 0.0. Legal values are 0.0 to 10,000,000.0.

Real variable ACIU(AC,2).

Acres in each age class for MI-1, stocking level 2, which translates to management type 2.

Default is 0.0. Legal values are 0.0 to 10,000,000.0.

28 Appendix A
Real variable VPAIU(AC,2).

Existing volume per acre in each age class for MI-, stocking level 2, which translates to

management type 2.

Default is 0.0. Legal values are 0.0 to 10,000,000.0.

Real variable ACIU(AC,3).

Acres in each age class for MI-1, stocking level 3, which translates to management type 3.

Default is 0.0. Legal values are 0.0 to 10,000,000.0.

Real variable VPAIU(AC,3).

Existing volume per acre in each age class for MI-1, stocking level 3, which translates to

management type 3.

Default is 0.0. Legal values are 0.0 to 10,000,000.0.

For management intensities = 2 to 5:

Integer variable Ml.

Management intensity.

No default. Legal values are 2 to 5, which translate to management types 5 to 8.

Integer variable AC.

Age class.

No default. Legal values are 0 to MAXAGE.

Real variable ACIU(AC,MT).

Acres in each age class for each Ml.

Default is 0.0. Legal values are 0.0 to 10,000,000.0.

Real variable VPAIU(AC,MT).

Existing volume per acre in each age class for each Ml.

Default is 0.0. Legal values are 0.0 to 10,000,000.0.

Management Unit Note: There are no MU card types 4-6, 9-10,15-20,25-27, 31, or 35.

Card Descriptions

MU card type 00, MU nameCharacter variable *15 MUNAME.

Name of MU.

Default is identification code in character form. Any alphanumeric character is legal (up to

15 characters).

MU card type 01, lUs belonging to MU—

Integer array IUID(1-10).

IU numeric identifier(s) (up to six per card). No default. Legal values are numbers of five or

fewer digits. Values are read with trailing blanks null.

MU card type 02, timber type (species)—

Integer variable ORGSP.

Reference number associated with timber type (species) name(s) entered on H8 card(s) of

Appendix A 29
input file HARVEST.

No default. Legal values are 1 to 9.

MU card type 03, optionsInteger variable HARSEL.

Harvest type.

Default is 1. Legal values: 1 =final harvest, 2=partial cutting.

Integer variable DUMP.

MU level diagnostic output request.

Default is none. Legal values range from 0 (or blank) to 5; where 0=none, 5=most.

Integer variable IFDUMP.

First period for diagnostic output at MU level.

Default is no diagnostic output at the MU level.

Legal values are 0 to MAXSIM; where 0 represents period zero.

Integer variable LSDUMP.

Last period for diagnostic output at MU level.

Default is no diagnostic output at the MU level.

Legal values are 0 to MAXSIM; greater than or equal to IFDUMP; where 0 represents

period zero.

MU card type 07, age limits for shifting—

Management intensity pairs must be in ascending numerical order with no duplication.

Integer variable MIFR.

Management intensity, source of shift.

No default. Legal values are 1 to 5.

Integer variable MITO.

Management intensity, destination of shift.

No default. Legal values are 1 to 5; not equal to MIFR.

Integer array HISHIF(MIFR,MITO)

Maximum age class to shift acres from MIFR to MITO.

Default is 0. Legal values are 0 (regeneration only) to MAXAGE.

MU card type 08, minimum harvest agesInteger array MINHAR(1-5).

Minimum age class to allow final harvest in each Ml (5 values per card).

Default is 0 (all volume available). Legal values are 0 to MAXAGE.

MU card type 11, acres in MU—

Integer variable AOP.

Period of first area specified. The remaining nonblank areas are for periods AOP+1 to

AOP+5.

Default (blank) defines user default. Legal values are 0 to MAXSIM.

30 Appendix A
Real array AREA(AOP).

Area in million acres for each period. Up to six entries per card. If left blank, user default

will be assumed.

Default is 0.0 which implies no change. Legal values are 0.0 to 100.0.

MU card type 12, age class distribution of acres entering MU—

Integer variable AOP.

Age class of first proportion specified. The remaining nonblank proportions are for age

classes AOP+1 to AOP+5.

Default (blank) defines user default. Legal values are 0 to MAXAGE.

Real array ENTER(AOP).

Proportion of acres entering MU to assign to an age class (assuming acreage increase

from MU card 11). Up to six values per card. User default may be used. Legal values are

0.0 to 1.0. Sum of all proportions specified must equal 1.0.

Default for blank (assuming no user default card) is 0.0, no acres.

Default when card type 12 is omitted equals 1.0 for age class 0.

MU card type 13, age class distribution of acres exiting MU—In the case of area loss,

proportions can be for a single age class or a range of age classes called groups. From 1

to 10 groups may be specified; groups must be arranged in ascending order.

Integer variable KEX.

Index number of age class group.

No default. Legal values are 1 to 10.

Integer variable LEX(KEX).

Lowest age class of group.

No default. Legal values are 0 to MAXAGE; must be greater than maximum age class of

lower indexed group.

Integer variable UEX(KEX).

Maximum age class of group.

No default. Legal values are 0 to MAXAGE; must be greater than or equal to LEX(KEX).

Real variable EXIT(KEX).

Proportion of MU acreage loss to be extracted from the age classes in the group.

Default is 0.0 (no acres). Legal values are 0.0 to 1.0. Sum of all specified groups must

equal 1.0.

MU card type 14, management intensity of entering acres—

Integer variable MIENT.

Management intensity to assign acres entering the MU (through MU cards 11 and 12).

Default is 1. Legal values are 1 to 5.

MU card type 21, proportion of acres in unstocked category to be restocked—

Integer variable AOP.

Period of first proportion specified. The remaining nonblank proportions are for periods

AOP+1 to AOP+5.

Appendix A 31
Default (blank) defines user default. Legal values are 0 to MAXSIM.

Real array UNSTRE(AOP).

Proportion of unstocked acres restocked each period.

Up to six values per card. User default may be used.

Default is 0.0. Legal values are 0.0 to 1.0.

MU card type 22, proportion of cut acres to remain unstocked—

Integer variable AOP.

Period of first proportion specified. The remaining nonblank proportions are for periods

AOP+1 to AOP+5.

Default (blank) defines user default. Legal values are 0 to MAXSIM.

Real array CUTUNS(AOP).

Proportion of acres cut in MU to remain unstocked each period.

Up to six values per card. User default may be used.

Default is 0.0. Legal values are 0.0 to 1.0.

MU card type 23, average stocking proportion, regeneration distribution—

Real array AVSPRO(1-3).

Average stocking proportion for stocking levels 1 to 3 of MI-1, translates to management

types 1 to 3. (Also called regeneration stocking ratio.)

Three values.

Defaults are 0.0. Legal values are 0.0 to 4.0.

Real array SLDIST(1-3).

Regeneration distribution for stocking levels 1 to 3 of management intensity 1.

Three values.

Defaults are 1.0 for stocking level 1 and 0.0 for stocking levels 2 and 3. Legal values are

0.0 to 1.0. Sum of values must equal 1.0.

MU card type 24, stocking level thresholds, average stocking proportions—

Real array SLMIN(1-2).

Lower bound of stocking levels 1 and 2. Two values.

Defaults are 0.0. Legal values are 0.0 to 4.0; proportion for stocking level 1 must be

greater than proportion for stocking level two, unless both are 0.0.

Real array AVSPRO(5-8).

Average stocking proportions for MIs 2 to 5, translates to management types 5 to 8 (also

called regeneration stocking ratios). Four values.

Defaults are 0.0. Legal values are 0.0 to 4.0.

MU card type 28, management intensity shift ratesInteger variable MIFR.

Management intensity source (Ml to lose acres).

No default. Legal values are 1 to 5.

32 Appendix A
Integer variable MITO.

Management intensity destination (Ml to gain acres).

No default. Legal values are 1 to 5; not equal MIFR.

Integer variable AOP.

Period of first shift proportion specified. The remaining nonblank proportions are for periods

AOP+1 to AOP+5.

Default (blank) defines user default. Legal values are 0 to MAXAGE.

Real array MISHIF(MIFR,MITO,AOP).

Proportion of acres in specified age class(es) (from MU card 07) to shift from MIFR to

MITO in period AOP.

Default is 0.0 Legal values are 0.0 to 1.0.

MU card type 29, proportion of area loss volume to recover in harvest—

Integer variable FIB.

Fiber type.

No default. Legal values: 1 =softwood, 2=hardwood.

Integer variable AOP.

Period of first proportion specified. The remaining nonblank proportions are for periods

AOP+1 to AOP+5.

Default (blank) defines user default. Legal values are 0 to MAXAGE.

Real variable ARCREC(FIB,AOP).

Proportion of volume on acres lost from the timberland (via MU card 11) that is classified

as harvest volume by fiber type, for each period.

Default is 6.0. Legal values are 0.0 to 1.0.

MU card type 30, relative density change (stocking adjustment) options—

Two card type 30 entries are allowed. If present, the second card type 30 allows the use of

a separate set of coefficients applicable to acres regenerated within the MU. When using

the second card, variable ENT equals 2, this follows the initial card where ENT equals 1.

On the second card, the variables FULLDC, HALFDC, and EQNDC are not entered; they

are derived from values found on the first card.

Default: If card type 30 is omitted, no stocking adjustment takes place.

For ENT=1:

Integer variable ENT.

Specifies the first set of relative-density-change coefficients. Should the option be chosen

to specify a second set of coefficients, then the coefficients on this card will apply only to all

stands existing at the beginning of the simulation.

No default if card 30 is present. The value of 1 must be present.

Integer variable FULLDC.

Maximum age class of full stocking adjustment for both current and regenerated acres.

Default is 0. Legal values are 0 to MAXAGE.

Integer variable HALFDC.

Appendix A 33
Maximum age class of one-half the full stocking adjustment for both current and regenerated acres. No stocking adjustment takes place on acres in age classes higher than

HALFDC.

Default is 0. Legal values are 0 to MAXAGE; must be greater than or equal to FULLDC.

Integer variable EQNDC.

Form of stocking-adjustment equation.

Default is 1. Legal values: 1 for the linear form (equations 2 and 3 in text), or 2 for the

quadratic form (equations 4 and 5 in text).

Real variable COEFDC(1).

First coefficient in stocking-adjustment equation; used only for existing inventory if a

second card type 30 is supplied; otherwise used for both existing inventory and regenerated acres. This coefficient is defined as I31 in equations (2), (3), (4), (5), (7), and (8) of

text.

Default is 0.0. Value not checked for error.

Real variable COEFDC(2).

Second coefficient in stocking-adjustment equation; used for existing inventory if a second

card type 30 is supplied; used for both existing inventory and regenerated acres if not. This

coefficient is defined as 62 in equations (2), (3), (4), (5), (7), and (8) of text.

Default is 1.0. Value not checked for error.

For ENT=2:

Integer variable ENT.

Specifies the application of a second set of stocking-adjustment coefficients to acres

regenerated within the MU.

No default. Legal value is 2.

Real variable CREGDC(1).

First coefficient for stocking-adjustment equation; used for regenerated acres (including

acres entering the zero age class via area change cards 11 and 12). This coefficient is

defined as 13, in equations (2), (3), (4), (5), (7), and (8) of text.

Default is 0.0. Value not checked for error.

Real variable CREGDC(2).

Second coefficient for stocking-adjustment equation; used for regenerated acres (including

acres entering the zero age class via area change cards 11 and 12). This coefficient is

defined as 62 in equations (2), (3), (4), (5), (7), and (8) of text.

Default is 0.0. Value not checked for error.

MU card type 32, average diameter by age class—

Integer variable Ml.

Management intensity.

No default. Legal values are 1 to 5.

Integer variable AOP.

Age class of first diameter specified. The remaining nonblank proportions are for age

classes AOP+1 to AOP+5,

34 Appendix A
Default (blank) defines user default. Legal values are 0 to MAXAGE.

Real array AVDIAM(AOP,MI).

Average diameter of inventory in each age class by management intensity.

Default is 0.0. Legal values are 0.0 to 100.0.

MU card type 33, base yield table volume—

Integer variable Ml.

Management intensity.

No default. Legal values are 1 to 5.

Integer variable AOP.

Age class of first volume specified. The remaining nonblank proportions are for age classes

AOP+1 to AOP+5.

Default (blank) defines user default. Legal values are 0 to MAXAGE.

Real array VOLPA(AOP,MI).

Yield-table volume per acre for each age class by Ml.

Default is 0.0. Legal values are 0.0 to 100,000.0.

MU card type 34, commercial thinning volumesInteger variable Ml.

Management intensity.

No default. Legal values are 1 to 5.

Integer variable AOP.

Age class of first volume specified. The remaining nonblank proportions are for age classes

AOP+1 to AOP+5.

Default (blank) defines user default. Legal values are 0 to MAXAGE.

Real array THINPA(AOP,MI).

Thinning volume per acre by age class and Ml. This value should be reflected in the

volume of the corresponding base yield table (thinning does not change stocking). Volume

removed from inventory will equal the product of THINPA and AVSPRO.

Default is 0.0. Legal values are 0.0 to 10,000.0.

MU card type 36, softwood proportions of volumeInteger variable Ml.

Management intensity.

No default. Legal values are 1 to 5.

Integer variable AOP.

Age class of first proportion specified. The remaining nonblank proportions are for age

classes AOP+1 to AOP+5.

Default (blank) defines user default. Legal values are 0 to MAXAGE.

Real array SOFTPA(AOP,MI).

Softwood proportion of volume per acre for each age class in each Ml.

Appendix A 35
Default is 1.0. Legal values are 0.0 to 1.0.

MU card type 37, growth on harvest—

Integer variable Ml.

Management intensity.

No default. Legal values are 1 to 5.

Integer variable AOP.

Age class of first multiplier specified. The remaining nonblank proportions are for age

classes AOP+1 to AOP+5.

Default (blank) defines user default. Legal values are 0 to MAXAGE.

Real array HARGR0(A0P).

Growth on harvest multiplier for each age class.

Default is 1.0, which implies no growth on harvest. Legal values are 1.0 to 10.0.

MU card type 38, harvest priority proportionsInteger variable AOP.

Age class of first proportion specified. The remaining nonblank proportions are for age

classes AOP+1 toAOP+5.

Default (blank) defines user default. Legal values are 0 to MAXAGE.

Real array HVPROP(AOP).

Proportion of the share of total harvest volume for this MU to be assigned to each age

class. If volume in age class cannot fulfill the assigned proportion, then harvest not fulfilled

will be removed from oldest age class with available volume.

Default is 0.0 for age classes 0 to 16 and 1.0 for age class 17. Legal values are 0.0 to 1.0.

MU card type 39, volume unit conversion factors—

Integer variable AOP.

Age class of first factor specified. The remaining nonblank proportions are for age classes

AOP+1 to AOP+5.

Default (blank) defines user default. Legal values are 0 to MAXAGE.

Real variable CONFAC(AOP).

Factor for converting reported volumes to alternate volume units for each age class.

Default is 1.0. Legal values are 0.0 to 100.0.

MU card type 40, partial-cutting target age class—

Integer variable AOP.

First age class to receive partial-cutting treatment. The remaining nonblank entries are for

age classes AOP+1 to AOP+5.

Blank defines PCAGE entry as user default. Legal values are 0 to MAXAGE.

Integer array PCAGE(AOP).

Target age class: new age class to assign acres during the partial cutting treatment. Entry

is by age class to receive treatment.

36 Appendix A
Legal values are 0 to MAXAGE.

Default is MAXAGE, which is equivalent to no harvest. An entry of 0 is equivalent to final

harvest. Age classes with targets greater than the existing age receive no treatment (same

as blank entries). Partial-cutting harvest is proportioned by available volume among those

age classes with target ages.

MU card type 41, partial-cutting minimum stocking proportionReal variable PCMIN.

Minimum stocking proportion for eligibility for partial cutting. No treatment will take place in

any age class when inventory stocking is below this value.

Default is 0.0 Legal values are 0.0 to 1.0.

Harvest Unit Card Note: The HU is composed of two parts. The first part consists of card types 01 through 07.

Descriptions These records contain parameters that control the ATLAS simulation, and this also is

where the user selects output reports. Only one set of cards 01 through 07 are allowed in a

simulation. The second set of records, card types HO through H8, defines the individual

HUs (up to 32 sets of these are allowed). All HUs share the same simulation run-time and

report parameters found in card types 01 through 07, but each contains an individual set of

MUs, harvest requests, management intensity labels, and species (or forest type) labels.

HU card type 01, simulation heading—

Required.

Character variable *60 RHEAD.

Heading written on all reports.

No default. Any alphanumeric characters are legal.

HU card type 02, starting year—

Required.

Integer variable STYEAR.

The beginning year for the simulation.

No default. Legal values are 1900 to 5000.

HU card type 03, diagnostic and standard report requestsRequired.

Integer variable DOVER.

Overall diagnostic output request.

No default. Legal values: 0=none, 1 =some, 2=extensive.

Integer variable IFDOV.

First period for diagnostic output.

Default (blank) is no diagnostic output. Legal values are 0 to MAXSIM.

Integer variable LSDOV.

Last period for diagnostic output.

Default (blank) is no diagnostic output. Legal values are 0 to MAXSIM; must be greater

than or equal to IFDOV.

Appendix A 37
Card Descriptions

for Individual

Harvest Units

38 Appendix A

Integer variable SUMREP.

Summary report flag (ATLIST report).

Default (blank) is no summary reports. Legal values: 0=no summary reports, 1 ^summary

reports.

Integer variable HUREP.

HU report flag (ATHUR report).

Default (blank) is no HU reports. Legal values: 0=no HU reports, 1=HU reports for totals

across MIs, 2=HU reports for individual MIs and totals.

Integer variable MUREP.

MU report flag (ATMUR or ATTMU report).

Default (blank) is no MU reports. Legal values: 0=no MU reports, 1=MU reports totals

across MIs (totals by MU), 2=MU reports for individual MIs and totals by MU, 3=ATTMU

report of MU grand totals for every period (no ATMUR report). Note: Linked ATLAS

(TAMM90/ATLAS) will not produce MU-level reports, regardless of the value of this flag.

HU card type 04, HU report yearsInteger array HURYR(1-12).

HU report years for ATHUR.

Up to 12 values. The calendar years (for example, 1980) for which HU reports are wanted.

Default is no HU report. Legal values are 1900 to 5000.

HU card type 05, MU report yearsInteger array MURYR(1-12).

MU report years for ATMUR.

Up to 12 values. The calendar years (for example, 1980) for which MU reports are wanted.

Default is no MU report. Legal values are 1900 to 5000.

HU card type 06, minimum diameter for alternate volume—

Real variable DIAMIN.

Minimum diameter for including volume in conversion to alternate volume unit.

Default is 0.0. Legal values are 0.0 to 50.0.

HU card type 07, initial softwood fractions of harvest—

This card type is only used by the TAMM90/ATLAS mainframe model, it is ignored by other

versions of ATLAS. Card 07 consists of four cards that supply TAMM with an initial estimate of the softwood proportion of the total harvest. The dimensions reflect its use in the

RPA timber assessment; eight regions, two ownerships, and two fiber types.

Real array SFRAC(1 -8,1 -4)

Initial value for softwood fraction of harvest.

Eight values per card, four cards.

Default is 0.0. Legal values are 0.0 to 1.0.

Note: There is no HU card type H5.

HU card type HO, HU headingRequired.
Character variable *60 HUHEAD.

Title for HU.

No default. Any alphanumeric characters are legal.

HU card type H1, HU name and other informationRequired.

Character variable *10 HUNAME. \

Name of HU.

No default. Any alphanumeric characters are legal.

Integer variable LENPD.

Length of period in years.

No default. Legal values are 1 to 50.

Integer variable MAXPD.

Number of periods for the simulation.

No default. Legal values are 0 to MAXSIM.

Real variable DCLIM.

Upper allowable stocking limit as a proportion of yield-table volume. Inventory with stocking

above this proportion will be moved ahead into the next and subsequent age classes until

the stocking proportion is equal to or less than DCLIM (in some cases age class MAXAGE

may have stocking higher than DCLIM).

Default value (blank) is 1.50 (or 150 percent). Legal values are 0.5 to 10.0.

Real variable DCMIN.

Minimum stocking ratio within expected range. Age classes with lower ratios are flagged in

HU report.

Default value (blank) is 0.10. Legal values are 0.0 to 2.0.

Real variable DCMAX.

Maximum stocking ratio within expected range. Age classes with higher ratios are flagged

in HU report.

Default value (blank) is 1.30 or DCLIM, whichever is greater. Legal values are 0.5 to 10.0.

HU card type H2, MUs belonging to HU—

Required.

Integer array MUID(1-65).

MU numeric identifiers. Up to six per card.

Default values (blank) are no MU identified. Legal values are numbers of 10 or fewer digits,

trailing blanks are considered null.

HU card type H3, HU final harvest volumes—

(Either H3 or H4 is required—having both is ok.)

Integer variable HARTYP.

Fiber type of harvest.

No default. Legal values are 1=softwood, 2=hardwood, or 3=combined.

This variable is repeated on each H3 record.

Appendix A 39
Integer variable PD.

Period corresponding to first harvest entered on this card.

No default. Legal values are 0 to MAXSIM. The remaining five harvests are for periods

PD+1 to PD+5.

Real array HARVHU(PD).

Final harvest volumes of specified fiber-type in million units for each period of the

simulation.

Default is 0. Legal values are 0.0 to 1 .OE+6.

HU card type H4, HU partial cutting harvest volumes—

(Either H3 or H4 is required-having both is ok.)

Integer variable HARTPC.

Fiber type of harvest.

No default. Legal values are 1=softwood, 2=hardwood, or 3=combined.

This variable is repeated on each H4 record.

Integer variable PD.

Period corresponding to first harvest entered on this card.

No default. Legal values are 0 to MAXSIM. The remaining five harvests are for periods

PD+1 to PD+5.

Real array PCHARV(PD).

Partial cutting harvest volumes of specified fiber type in million units for each period of the

simulation.

Default is 0. Legal values are 0.0 to 1 .OE+6.

HU card type H6, HU management intensity names—

Required.

Integer variable LTYP.

Management intensity.

No default. Legal values are 1 to 5 in ascending order with none missing.

Character array *15 MINAME(LTYP)

Name or description of Ml to be used in output reports.

No default. Any alphanumeric characters are legal.

HU card type H7 was previously HU site names—Site names should be incorporated

into the MU name. This card served no useful purpose in ATLAS; it has been deleted.

HU card type H8, HU timber type names and fiber types—

Integer variable LTYP.

Timber type (or species).

No default, at least one required. Legal values are 1 to 9. Those card types present must

be in ascending order.

Character array *15 SPNAME(LTYP)

40 Appendix A
Appendix B:

Formats of Input Records

Name or description of timber type (species) to be used in output reports (referenced in

MU card 02).

No default. Any alphanumeric characters are legal.

Integer array SPGROU(LTYP)

Fiber type (for harvest purposes) of timber type, 1 =softwood, 2=hardwood. Used in

TAMM90/ATLAS for region owner summary. Used in stand-alone ATLAS for controlling

printing of timber types (blank means timber type does not exist in data). No default.

This appendix shows the required input format of the lUs in INVEN, the MUs in MANAGE,

and the HUs in HARVEST. The card types are listed in the same order as in appendix A.

Each page in this appendix has a heading of column numbers followed by names or abbreviations used to describe groups of columns or fields. All three input files have a similar

format: all are 80 columns wide, the first 20 columns contain identification information, and

the last 60 columns are divided into six 10-column data fields. The six data fields are used

to enter acres and volume by stocking classes in the IU (one record for each age class). In

the MU and HU, the data fields are used to enter variables such as yield tables and

harvest requests, where each data field represents an age class or period.

The abbreviations used for the headings are:

AC

Card

type

HT

CT

ID

Ml

MIFR

MITO

PD

Age class; zero is the youngest age class. In IU file, this is the age class associated with the acre and volume entries on the record.

This corresponds to the card type value listed in appendix A.

In the file HARVEST, these represent harvest type and count. The word count is in

this case associated with an index for the field for Ml names (1 -5), site class

names (1 -3), and species names (up to 9). Harvest type designates the HU as

partial cutting or final harvest.

Unique identifier used for the particular IU or MU. In the file HARVEST, columns

3-4 with the heading HU are used to identify multiple HUs (only for cards HO

though H8).

Management intensity. A value must be entered, even if only one Ml is present.

Used to list the Ml from which acres will come on MU card types 07 and 28. Otherwise this column is for the management intensity associated with the values in data

fields 1-6, for the fiber type associated with card type 29, or to identify card 30.

This column is used only in conjunction with MIFR on MU cards 07 and 28 to designate the Ml to receive acres.

Simulation period, when represented by PD, or age class when represented by

AC. The period or age class to be associated with value in data field 1 (where 0 is

the first period of a simulation, and 0 is the youngest age class). The value in data

field 2 is associated with the subsequent period or age class.

Appendix B 41
IU Format

Inventory Unit

Input Format

1-5 7 9 11-12 21 - 30 31 - 40 41 - 50 51 - 60 61 - 70 71 - 80

IU Card MI AC Data f i e l d 1 Data f i e l d 2 Data f i e l d 3 Data f i e l d 4 Data f i e l d 5 Data f i e l d 6

ID type

Unstocked acres.

1 UNSIU

Regular acres and volumes per acre for MI 1, each stocking level, 1 to 3, and age class.

3 1 ACIU(ac,1) VPAIU(ac,1) ACIU(ac,2) VPAIU(ac(2) ACIU(ac,3) VPAIU(ac,3)

stocking level 1 stocking level 2 stocking level 3

Regular acres and volumes per acre for MIs 2 to 5, stocking level 1, and age class.

3 mi ACIU(ac,mi+3) VPAIU(ac,mi+3)

42 Appendix B
MU Format

Management Unit

Input Format

1-10 11-12 14 16 18-19

MU Card MIFR MITO PD

ID type

00

01

02

03

07 mifr mi to

08

11

11

12

12

13

14

21

21

ac

kex

21 - 30

Data f i e l d 1

31 - 40

Data f i e l d 2

41 - 50

Data f i e l d 3

51 - 60

Data f i e l d 4

61 - 70

Data f i e l d 5

MU Name: 15 characters.

HUNAME (to column 35)

IUs belonging to MU: IU identification code, 1 10 IUs per MU.

IUID(i) IUID(j) IUID(k) IUID(l)

MU species (forest type).

ORGSP

Species

IUID(m)

MU options.

HARSEL DUMP

Harvest type: Diagnostic

1=final harv. output flag:

2 = p a r t i a l cut O=off, 1=on

IFDUMP LSDUMP

F i r s t period Last period

for diagnostic for diagnostic

output output

71 - 80

Data f i e l d 6

IUID(n)

Age class limit for shifting among Mis.

MSHIF(mifr,mito)

Minimum harvest age class for each MI, 1 to 5.

MINHAR(1) MINHAR(2) MINHAR(3) MINHAR(4) MINHARC5)

Areas.

AREA(-1)

User default

AREA(pd) AREA(pd+1) AREA(pd+2) AREA(pd+3) AREA(pd+4) AREA(pd+5)

Proportions of entering acres.

ENTER(-1)

User default

ENTER(ac) ENTER(ac+1) ENTER(ac+2) ENTER(ac+3) ENTER<ac+4) ENTER(ac+5)

Minimum and maximum age class of group and proportion of exiting acres f o r group.

LEX(kex) UEX(kex) EXIT(kex)

Management i n t e n s i t y of entering acres.

MIENT

Proportion of unstocked acres restocked f o r period.

UNSTRE(-I)

User default

pd UNSTRE(pd) UNSTRE(pd+1) UNSTRE(pd+2) UNSTRE(pd+3) UNSTRE(pd+4) UNSTRE(pd+5)

Appendix B 43

Pd
MU Format

1-10 11-12 14 16 18-19 21 - 30 31 - 40 4 1 - 5 0 5 1 - 6 0 61 - 70 71 - 80

MU card MIFR MITO PD Data field 1 Data field 2 Data field 3 Data field 4 Data field 5 Data field 6

ID type

Proportion of cut acres to unstocked for period.

22 CUTUNS<-1)

User default

22 pd CUTUNS(pd) CUTUNS(pd+1) CUTUNS(pd+2) CUTUNS(pd+3) CUTUNS(pd+4) CUTUNS(pd+5)

Average stocking proportion and regeneration d i s t r i b u t i o n for MI 1, stocking levels 1 to 3.

23 AVSPRO(I) AVSPR0(2) AVSPRO(3) SLDIST(1) SLDIST(2) SLD1ST(3)

Minimum stocking proportion for stocking levels 1 and 2; average stocking proportion for MI 2 to 5

(equivalent to MT 5 to 8 ) .

24 SLMINC1) SLMIN(2) AVSPRO(5) AVSPRO(6) AVSPR0(7) AVSPR0(8)

Proportion of acres to shift among Mis for period.

28 mifr mito MISHIF(-1, mifr, mito)

User default

28 mifr mito pd MISHIF(pd, MSHIF(pd+1, MISHIF(pd+2, MISHIF(pd+3, MISHIF(pd+4, MISHIF(pd+5,

mifr, mito) mifr, mito) mifr, mito) mifr, mito) mifr, mito) mifr, mito)

Recovery factor for softwood forests for period.

29 1 ARCREC(-1,1)

User default

29 1 pd ARCREC(pd,1) ARCREC(pd+1,1) ARCREC(pd+2,1) ARCREC(pd+3,1) ARCREC(pd+4,1) ARCREC(pd+5,1)

Recovery factor for hardwood forests for period.

29 2 ARCREC(-1,2)

User default

29 2 pd ARCREC(pd,2) ARCREC(pd+1,2) ARCREC(pd+2,2) ARCREC(pd+3,2) ARCREC(pd+4,2) ARCREC(pd+5,2)

Relative density change equation information.

30 1 FULLDC HALFDC EQNDC COEFDC(I) C0EFDC(2)

Last age c l a s s Last age c l a s s Equation type: 1st c o e f f i c i e n t 2d coefficient

to receive to receive 1=linear, of density of density

full density half of the 2-quadratic change change

adjustment f u l l density equation equation

adjustment

30 2 Coefficients f o r regeneration r e l a t i v e density change equation.

(FULLDC, HALFDC, EQNDC default from 1st equation--above) CREGDC(1) CREGDC(2)

1st c o e f f i c i e n t 2d coefficient

of regen. of regen.

density change density change

equat i on equat i on

44 Appendix B
MU Format

1-10 11-12 14 16 18-19 21 - 30 31 - 40 41 - 50 51 - 60 61 - 70 71 - 80

MU Card HIFR HITO PD Data field 1 Data field 2 Data field 3 Data field 4 Data field 5 Data field 6

ID type

Average diameter f o r MI and age class.

AVDIAM(-1,mi)

User default -

ac AVDIAM(ac,mi) AVDIAM(ac+1,mi) AVDIAM(ac+2,mi) AVDIAM(ac+3,mi> AVDIAM(ac+4,mi) AVDIAM(ac+5,mi)

Standard net volume per acre for Ml and age class.

V0LPA(-1,mi)

User default

ac VOLPA(ac.mi) VOLPA(ac+1,mi) VOLPA(ac+2,mi) VOLPA(ac+3,mi) VOLPA(ac+4,mi) V0LPA(ac+5,mi)

Thinning volume per acre for MI and age class.

THINPA(-1,mi)

User default

ac THINPA(ac,mi) THINPA(ac+1,mi) THINPA(ac+2,mi) THINPA(ac+3,mi) THINPA(ac+4,mi) THINPA(ac+5,mi)

Softwood proportion of volume per acre for Mt and age class.

SOFTPA(-1,mi)

User default

ac SOFTPA(ac,mi) SOFTPA(ac+1,mi) S0FTPA(ac+2,mi) SOFTPA(ac+3,mi) SOFTPA(ac+4,mi) SOFTPA(ac+5,mi)

Growth on harvest adjustment factor f o r MI and age class.

HARGRO(-1,mi)

User default

ac HARGROCac.mi) HARGR0(ac+1,mi) HARGRO(ac+2,mi) HARGRO(ac+3,mi) HARGR0(ac+4,mi) HARGRO(ac+5,mi)

Preferred harvest proportion for age class.

HVPROP(-1)

User default

ac HVPROP(ac) HVPROP(ac+1) HVPROP(ac+2) HVPROP(ac+3) HVPROP(ac+4) HVPROP(ac+5)

Volume conversion factor.

CONFAC(-1)

User default

ac CONFAC(ac) CONFAC(ac+1) CONFAC(ac+2) CONFAC(ac+3) CONFAC(ac+4) CONFAC(ac+5)

Partial-cutting target age class.

PCAGE(-1)

User default

32

32

33

33

34

34

36

36

37

37

38

38

39

39

40

40

mi

mi

mi

mi

mi

mi

mi

mi

mi

mi

41

ac PCAGE(ac) PCAGE(ac+1) PCAGE(ac+2) PCAGE(ac+3) PCAGE(ac+4)

Partial-cutting minimum stocking proportion.

PCMIN

PCAGE(ac+5)

Appendix B 45
HU Format

Harvest Unit

Input Format

1-2 3-4

Card HU

type

7

HT,

CT

10-11

PD

21-25 26-30

Data f i e l d 1

Run header.

31-35 36-40

Data f i e l d 2

41-45 46-50

Data f i e l d 3

51-55 56-60

Data f i e l d 4

61-65

Data

66-70

f i e l d 5

71-75 76-80

Data f i e l d 6

01

02

03

04

05

06

07

HO

H1

RHEAD

60-character run description ( t o column 80)

Beginning year of simulation.

STYEAR

General Options.

DOVER IFDOV LSDOV SUMREP

Overall First period Last period Summary

diagnostic of diagnostic of diagnostic report flag:

report f l a g : reports reports O=off, 1=on

O=off, 1=on

HUREP MUREP

HU r e p o r t HU r e p o r t

f l a g : O=off, f l a g : O=off,

1 = t o t a l , 1 = t o t a l ,

2=MI and t o t a l 2=MI and total

3=ATTMU report

HU report years.

HURYR HURYR HURYR HURYR HURYR HURYR HURYR HURYR

(1) (2) (3) (4) (5) (6) (7) (8)

Calendar years in 5 column fields

HU report years.

MURYR MURYR MURYR HURYR MURYR MURYR MURYR MURYR

(1) (2) (3) (4) (5) (6) (7) (8)

Calendar years in 5 column fields

Minimum diameter.

DIAHIN

Initial softwood fractions (valid only for TAMN90/ATLAS model).

HURYR HURYR HURYR HURYR

( 9 ) ( 1 0 ) ( 1 1 ) ( 1 2 )

MURYR MURYR MURYR MURYR

(9) (10) (11) (12)

SFRAC

(1,1)

(1,2)

(1,3)

(1,4)

SFRAC

(2,1)

(2,2)

(2,3)

(2,4)

SFRAC

(3,1)

(3,2)

(3,3)

(3,4)

SFRAC

(4,1)

(4,2)

(4,3)

(4,4)

SFRAC

(5,1)

(5,2)

(5,3)

(5,4)

4 cards of 8 v a l u e s e v e r y 5 columns

HU heading.

SFRAC

(6,1)

(6,2)

(6,3)

(6,4)

SFRAC

(7,1)

(7,2)

(7,3)

(7,4)

SFRAC

(8,1)

(8,2)

(8,3)

(8,4)

HUHEAD

6 0 - c h a r a c t e r HU d e s c r i p t i o n ( t o column 8 0 )

H2

HU o p t i o n s .

HUNAME

10-character

HU name

MUs belonging

MUID(n)

LENPD

Number of

years in a

period

to HU (maximum

MUID(n+1)

MAXPD

Last p e r i o d

of simulation

number is 65).

MUID(n+2)

DCLIH

Upper density

l i m i t for

beginning

i nventory

MUID(n+3)

DCLIM

Minimum

density for

warning in

l i s t f i l e

MUID(n+4)

DCMAX

Maximum

density f o r

warning in

l i s t f i l e

MUID(n+5)

46 Appendix B
HU Format

1-2 3-4 7 10-11 21-25 26-30 31-35 36-40 41-45 46-50 51-55 56-60 61-65 66-70 71-75 76-80

Card HU HT, PD Data f i e l d 1 Data f i e l d 2 Data f i e l d 3 Data f i e l d 4 Data f i e l d 5 Data f i e l d 6

type CT

HU f i n a l harvest volume f o r p e r i o d : ht=1 f o r softwood, =2 f o r hardwood, =3 f o r combined.

H3 ht pd HARVHU(pd) HARVHU(pd+1) HARVHU(pd+2) HARVHU(pd+3) HARVHU(pd+4) HARVHU(pd+3)

HU p a r t i a l - c u t t i n g volume f o r p e r i o d : ht=1 f o r softwood, =2 f o r hardwood, =3 f o r combined.

H4 ht pd PCHARV(pd) PCHARV(pd+1) PCHARV(pd+2) PCHARV(pd+3) PCHARV(pd+4) PCHARV(pd+3)

HU management intensity name: five H6 cards required, one per MI 1 t o 5 (where ct equals 1 t o 5).

H6 ct MINAME(ct)

15-character MI name (to column 35)

HU species (forest type) name and fiber type: one H8 card for each forest type in HU, ct may be 1 to 9.

H8 ct SPNAME(ct) SPGROU(ct)

15-character species Species fiber

name ( t o column 35) type:

1=softwood,

2=hardwood

Appendix B 47
Appendix C:

ATLAS

Output Files

Report Summary

ATLIST

ATACRE

ATHUR

ATMUR

ATTMU

ATINV

ATLOG

ATLIST Output

48 Appendix C

ATLAS produces up to seven output files (see fig. 4):

Period total: inventory, area loss, harvest, area gain, and growth for each HU.

Period total area: in inventory, harvested, and regenerated by each HU timber

type.

For selected periods: inventory, growth, net area change, and harvest by age

class for each HU. Options allow for Ml level of detail.

For selected periods: inventory, growth, net area change, and harvest by age

class for each MU. Options allow for Ml level of detail.

Periodic MU total: area, inventory, growth, harvest, and area change (unlabeled

to allow for further processing).

Inventory and harvest totals for each HU (unlabeled to allow for further processing).

Error and informative messages.

The creation of output to the ATLIST and ATACRE files depends on report request

SUMREP on card type 03 of the HARVEST file. A value of 0 produces no reports; a value of

1 creates the reports for each HU. The length of each ATLIST report is two or three pages

(depending on the number of periods chosen for the simulation). Within the ATLIST file is a

separate report for each projected HU. We have found the ATLIST output to be the most

commonly used information from ATLAS; it includes values for all simulation periods. The

ATACRE reports are half a page to a page for each timber type accounted for in the HU,

with one additional page for an HU total.

Output to ATHUR and ATMUR is dependent on report requests HUREP and MUREP on

card type 03 and report year arrays HURYR and MURYR on card types 04 and 05 of the

HARVEST file. Output to ATTMU also depends on the variable MUREP but is independent

of card type 05 (ATMUR and ATTMU are mutually exclusive). Values of 0 for HUREP or

MUREP produce no reports, a value of 1 creates a report by age class totaled over MIs, and

an entry of 2 creates a report for both the total by age class and a breakdown of age-class

reports by individual MIs. The report year arrays (card types 04 and 05) specify the beginning year of the period for which reports will be written. Each selected report consists of one

page per report year for each HU or MU report year, or both, and if chosen, an additional

page for each Ml report; for example, for each period requested on card type 05, an MU

containing five MIs would be summarized in one page of output if MUREP=1 and six pages

of output if MUREP=2 (five MIs plus the total). The output file ATTMU contains periodic

totals for each MU (summed over all age classes). The format of ATTMU excludes headings

to ease further processing of the output data.

Neither ATINV nor ATLOG depends on report requests: they both are written invariably. The

format of ATINV excludes headings and labels so that further processing in other programs

is possible. The file ATLOG contains warning messages of any runtime errors encountered

and error messages if the simulation aborts.

File ATLIST contains the main summary output from a simulation. If ATLIST is chosen, each

HU in the file HARVEST will have a separate report (no summary report combines all

harvest units). Nine sections of data, or blocks, are written to ATLIST. In this example, these

blocks are numbered 1 to 9. Within the first six blocks, lines have been drawn to group
columns under the letters A through S. The contents of these blocks and columns is explained in the ATLIST key following this file listing.

The simulation presented here was derived from the RPA assessment (Haynes 1990). Three

MUs were taken from the Southeastern inputs. They represent the forest industry ownership,

in the planted pine forest type, stratified by three site classes. The harvest request closely

matches the original RPA projections. Harvests were derived from the output file ATTMU

produced when the entire Southeastern forest industry softwood simulation was run. There

is an exception, however; the harvest entered for period 6 (2010 to 2015) was arbitrarily

increased by 20 million cubic feet. This was done to provide an example of the reports when

the harvest request is not met. Because harvest was already running close to the amount of

volume available, almost none of the increased request was available.

File ATLIST

P C - A T L A S ATLAS linked with TAMM90 - Base Run 8-Extended Harvest.

Run on 1/30/1991 11: 6:15 Using RAF from 1/30/1991 11: 6: 9

1

Pd

0

1

2

3

4

5

6

7

8

9

10

11

12

Harvest

Year

1980

1985

1990

1995

2000

2005

2010

2015

2020

2025

2030

2035

2040

Unit 1 SE

Inventory at

Acres

5.349

6.579

7.690

8.719

9.750

10.175

10.601

10.786

10.970

11.069

11.168

11.163

11.159

SW Inv

2341.650

3535.267

5302.176

7220.892

8201.834

9012.661

10503.816

11719.502

11722.094

11412.474

11329.343

11256.208

11336.033

A F: SU

start

HW

41

52

70

81

86

96

104

110

109

110

109

109

109

SE Forest Industry Softwoods

of period, Aret

Inv

.663

.876

.402

.142

.123

.621

.233

.993

.948

.440

.599

.868

.106

Com Inv

2383.314

3588.143

5372.579

7302.033

8287.958

9109.281

10608.049

11830.495

11832.041

11522.913

11438.940

11366.077

11445.140

B

i Loss, and Volume Recovered from

AvD Inv

5.953

6.030

6.121

6.048

5.863

5.919

6.055

6.144

6.129

6.077

6.051

6.053

6.065

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.005

0.004

area SU Loss HU Loss

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

9.868

8.507

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.104

0.104

loss.

Com Loss

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

9.972

8.611

SW Rec

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

9.868

8.507

C

HU Rec

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.078

0.078

Com Rec

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

9.946

8.585

2

Pd

0

1

2

3

4

5

6

7

8

9

10

11

Year

1980

1985

1990

1995

2000

2005

2010

2015

2020

2025

2030

2035

Thinning and

Acres

0.112

0.098

0.120

0.195

0.299

0.349

0.433

0.456

0.289

0.340

0.329

0.378

SU Thin

90.588

76.424

98.974

167.793

254.525

297.835

364.755

385.017

244.785

290.283

280.112

322.019

D

Final

HU

0

0

0

1

1

1

2

2

1

1

1

2

Harvest.

rhin

.464

.484

.613

.034

.668

.930

.551

.671

.654

.886

.858

.112

Com Thin

91.052

76.908

99.588

168.827

256.193

299.765

367.305

387.688

246.439

292.169

281.970

324.130

Acres

0.330

0.658

1.165

1.997

1.943

1.936

2.060

2.502

2.524

2.491

2.565

2.577

SU FH

647.468

1268.996

2110.923

3676.815

4743.363

4918.565

5451.308

6595.226

7040.958

6976.914

7069.342

6809.983

E

HU FH

7.063

12.758

20.538

32.580

38.674

40.364

43.132

51.900

55.030

54.471

53.308

53.132

Com FH

654.531

1281.754

2131.461

3709.395

4782.037

4958.928

5494.440

6647.126

7095.988

7031.384

7122.649

6863.115

AvD

7.

7.

7.

7.

7.

7.

7.

7.

7.

7.

7.

7.

FH

925

756

664

280

266

276

322

299

486

525

350

289

Com Req

745.583

1358.662

2231.049

3878.222

5038.229

5258.694

5881.743

7034.814

7342.427

7323.553

7414.566

7195.829

F

Com Dif

0.000

0.000

0.000

0.000

0.000

-0.001

-19.998

0.000

0.001

0.000

0.000

0.001

3

Pd

0

1

2

3

4

5

6

7

8

9

10

11

Year

1980

1985

1990

1995

2000

2005

2010

2015

2020

2025

2030

2035

Partial

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Cutting

SW PC

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

G

and T o t a l

HU PC

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Harvest.

Com PC

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

AvD PC

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

H

Com Req

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Dif

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

SU Har

738.056

1345.420

2209.898

3844.608

4997.888

5216.399

5816.062

6980.243

7285.743

7267.196

7359.322

7140.509

HU Har

7.527

13.242

21.151

33.614

40.341

42.294

45.683

54.571

56.684

56.357

55.245

55.321

I

Com Har

745.583

1358.662

2231.049

3878.222

5038.229

5258.694

5861.745

7034.814

7342.427

7323.553

7414.566

7195.830

Appendix C 49
P C - A T L A S ATLAS linked with TAMM90 - Base Run 8-Extended Harvest.

Run on 1/30/1991 1 1 : 6:15 Using RAF from 1/30/1991 11: 6: 9

Harvest Unit 1 SE FI SW SE Forest Industry Softwoods

Pd

0

1

2

3

4

5

6

7

8

9

10

11

Year

1980

1985

1990

1995

2000

2005

2010

2015

2020

2025

2030

2035

Growth

SU Gro

1931.672

3112.330

4128.613

4825.550

5808.714

6707.554

7031.750

6982.835

6976.122

7184.065

7286.147

7220.288

J

, Area

HU Gro

18.740

30.768

31.890

38.595

50.839

49.907

52.443

53.526

57.177

55.516

55.540

54.585

Gain, and

Com Gro

1950.412

3143.098

4160.504

4864.146

5859.553

6757.460

7084.192

7036.361

7033.298

7239.581

7341.688

7274.872

K

Gain Adjusted for growth.

Acres

1.230

1.111

1.029

1.031

0.425

0.426

0.185

0.184

0.099

0.099

0.000

0.000

SU Gain HU Gain

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Gain

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

SU Adj 0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

HU Adj 0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

L

Com Adj 0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

5

Pd

0

1

2

3

4

5

6

7

8

9

10

11

Year

1980

1985

1990

1995

2000

2005

2010

2015

2020

2025

2030

2035

Inventory at

Acres SW Inv

6.579 3535.267

7.690 5302.176

8.719 7220.892

9.750 8201.834

10.175 9012.661

10.601 10503.816

10.786 11719.502

10.970 11722.094

11.069 11412.474

11.168 11329.343

11.163 11256.208

11.159 11336.033

M N

end of period, Unstocked and Regeneration Acres, and

HW Inv

52.876

70.402

81.142

86.123

96.621

104.233

110.993

109.948

110.440

109.599

109.868

109.106

Com Inv

3588.143

5372.579

7302.033

8287.958

9109.281

10608.049

11830.495

11832.041

11522.913

11438.940

11366.077

11445.140

AvD Inv

6.030

6.121

6.048

5.863

5.919

6.055

6.144

6.129

6.077

6.051

6.053

6.065

Un End

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Un Sta

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

o

BF/CF Ratios for

Regen

1.560

1.769

2.194

3.028

2.368

2.362

2.245

2.686

2.623

2.590

2.565

2.577

Reg Ad

0.330

0.658

1.165

1.997

1.943

1.936

2.060

2.502

2.524

2.491

2.565

2.577

Inventory

Inv Rat

1.301

1.174

0.999

0.984

0.932

0.896

0.940

1.025

1.021

0.951

0.927

0.940

P

and Harvest.

Har Rat

2.241

2.109

2.041

1.354

1.254

1.212

1.150

1.143

1.286

1.310

1.178

1.136

6

Pd

0

1

2

3

4

5

6

7

8

9

10

11

Year

1980

1985

1990

1995

2000

2005

2010

2015

2020

2025

2030

2035

Q

Inventory Identity.

Acres

6.579

7.690

8.719

9.750

10.175

10.601

10.786

10.970

11.069

11.168

11.163

11.159

SU Inv

3535.266

5302.176

7220.892

8201.833

9012.660

10503.815

11719.503

11722.095

11412.472

11329.343

11256.168

11335.987

HU Inv

52.876

70.402

81.142

86.123

96.621

104.233

110.994

109.948

110.440

109.599

109.868

109.106

Com Inv

3588.143

5372.578

7302.034

8287.957

9109.282

10608.048

11830.496

11832.041

11522.912

11438.941

11366.036

11445.094

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

R

SU Dif

0.001

0.000

0.000

0.000

0.001

0.001

-0.001

-0.001

0.002

0.000

0.040

0.046

HU Dif

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Dif

0.000

0.000

0.000

0.001

-0.002

0.001

-0.001

0.000

0.001

•0.001

0.041

0.046

SU Gro

1796.635

2863.051

3713.275

4094.911

4859.433

5715.785

5920.481

5652.463

5587.604

5798.899

5879.103

5859.092

s

HU Gro

17.417

28.408

28.053

32.235

43.064

41.802

43.639

43.008

46.257

44.687

44.802

43.904

Com Gro

1814.051

2891.458

3741.328

4127.146

4902.496

5757.587

5964.120

5695.472

5633.861

5843.586

5923.906

5902.996

50 Appendix C
PC - A T L A S ATLAS linked with TAMM90 • Base Run 8-Extended Harvest.

Run on 1/30/1991 11: 6:15 Using RAF from 1/30/1991 11: 6: 9

Harvest Unit 1 SE FI SW SE Forest Industry Softwoods

Pd

0

1

2

3

4

5

6

7

8

9

10

11

8

Pd

0

1

2

3

4

5

6

7

8

9

10

11

9

Year

1980

1985

1990

1995

2000

2005

2010

2015

2020

2025

2030

2035

Year

1980

1985

1990

1995

2000

2005

2010

2015

2020

2025

2030

2035

1961.

2691.

3550.

5465.

5434.

4918.

5451.

7669

8084

7995

7152

7069

25

30

39

48

Available

1

352

775

985

859

123

566

308

430

936

580

505

090

1961.

Softwood Final Harvest Volume.

352

2691.775

3550.

5465.

5434.

985

859

123

4918.566

5451.

7669.

8084.

7995

7152.

7069

308

430

936

580

505

090

Available Hardwood Final Harvest Volume.

1

493

.571

.083

.147

44.857

40

43

59

.364

.132

.115

61.983

61

53

54

.148

.867

.869

25 493

30.571

39

48

44

40

43

59

61

61

53

54

.083

.147

.857

.364

.132

.115

.983

.148

.867

.869

Forest (Species) Type.

1 PLANTED PINE

ATLISTKey Subsections of data within blocks 1 to 6 are marked as A to S. Values are written for each

period of the simulation. Volumes are reported for softwood and hardwood fiber types, the

combined is total volume.

Under the heading "Year" are the years that mark the beginning of each projection period.

Period 0 marks the start of the projection, the first year reported was entered as the

starting year in the file HARVEST. The volume associated with the starting year represents

the sum of the initial IU input. Growth, harvest, and area change occur during the period,

after the initial volume is reported.

The values for each block and subsection are as follows:

Block 1. A—Inventory at start of period. B—area loss. C—volume recovered from area loss.

A. Acres, volume, and average diameter of the inventory at the start of the period.

Acres include unstocked acres at the start of the period. MU level values are

stored in subroutine MUINIT.

Appendix C 51

7
B. Acres and volumes lost from the timberland base during the period. Volumes include growth on harvest. MU values are stored in subroutine ALOSS.

C. Volumes recovered from area loss; the volume from column B that will be counted

as part of the exogenous harvest. Volumes include growth on harvest. MU values

are stored in subroutine ALOSS.

Block 2. D—Thinning. E—final harvest. F—final harvest request.

D. Thinning acres and volumes; these are also part of the exogenous harvest. Volumes include growth on harvest. MU values are stored in subroutine THIN.

E. Final harvest acres and volume (endogenous harvest), and the average diameter

of the final harvest. Volumes include growth on harvest. MU values are stored in

subroutine HARV.

F. Final harvest request for the fiber type requested, and the difference between final

harvest taken and final harvest request. The request is input in HARVEST then

read in subroutines HUINIT and FINAL; the difference is computed in subroutine

IDENT.

Block 3. G—Partial cutting. H—partial cutting request. I—total harvest.

G. Partial-cutting acres, volumes and average diameter. Volumes include growth on

harvest. MU values are stored in subroutine PARCUT.

H. Partial-cutting request for the fiber type of the request, and difference between

partial cutting taken and partial cutting request. The request is an input value read

in subroutines HUINIT and FINAL; the difference is computed in subroutine

IDENT.

I. Total harvested volumes, the sum of volumes C, D, E, and G. The Com Dif column

in block F is equal to Com Har minus Com Req (expect small rounding errors).

These volumes include growth on harvest. MU level values are computed in

subroutine SUM.

Block 4. J—Growth. K—area gain. L—gain adjusted for growth.

J. Total growth volume, which includes growth on harvest from items B, D, E and G;

from S, both regular growth from age-class increases and regeneration growth;

and growth-on-area gain, the difference between K and L. MU level values are

computed in subroutines ALOSS, THIN, HARV, PARCUT, GROWTH, and AGAIN;

totals are computed in subroutine SUM.

K. Acres and volume added to the timberland base via area gain during the period.

The volume reported in this column represents the end of the period value. We

assume that acres are added in the middle of the period and then grow to the end

of the period. Column L reports the midpoint volume. MU level values are computed in subroutine AGAIN.

52 Appendix C
L. The midperiod volume on acres added to the timberland base through area gain.

The difference between the volume in column L and column K is computed as

growth-on-area gain. Values at the MU level are computed in subroutine AGAIN.

Block 5. M—Inventory at end of period. N—unstocked acres. O—regeneration acres.

P—board-foot-per-cubic-foot ratios for inventory and harvest.

M. Inventory acres, volumes, and average diameter at the end of the period. Acres

include unstocked acres at the end of the period. Values at the MU level values are

computed in subroutine SUM. These should be identical to the values for the

beginning of the next period (found in block 1. A.)

N. Acres in the unstocked category at the end of current period and unstocked acres

at the start of the current period.

O. Regeneration acres, total and adjusted. The total includes the regeneration of harvested acres, acres regenerated from the unstocked category, and the acres

gained in the zero age class via area gain. The adjusted value omits the area

gained in the zero age class. Values of total regeneration acres at the MU level are

computed in subroutine SUM. There is no MU-level value for adjusted regeneration

acres; the HU summary-level value is computed in SUMHU.

P. Board-foot-per-cubic-foot ratios for the inventory at the end of the period and for

final harvest (this can be any desired conversion unit; that is, net to gross or cubic

feet to board feet). Derived from MU card type 39 and computed in subroutine

SUM.

Block 6. Q—Inventory identity. R—differences. S—growth subtotal.

Q. Inventory identity for area and volume, as computed in subroutine IDENT. For

area, the equation is A - B - E + K + O-adjusted. For volume, the equation is

A - B - D - E - G + J + L. The identity is an internal checking mechanism, it is an

alternate calculation of the end of the period inventory. These values theoretically

are identical to the inventory at the end of the period.

R. Differences between inventory at the end of the period and the inventory identity,

as computed in subroutine IDENT. In a perfect program, these values should all be

0; however, when many acres are exchanged via area change, differences in

rounding and calculating show in these columns. The values should always be a

minute percentage of the inventory—if not, there may be internal problems.

S. Growth subtotal from age-class increase and from regeneration. Area gained in the

zero age class is included in regeneration growth calculations. Values at the MU

level are computed in subroutine GROWTH.

Block 7. Available softwood final harvest volume (does not include any available partial

cutting volume). For each timber type (species), the softwood volume in age

classes equal to and greater than the minimum harvest age(s) entered in the

MU(s). This value includes growth on harvest. There is no MU-level value of this

variable; the HU-level value is computed in subroutine AGGREG except for totals

computed in SUMHU.

Appendix C 53
Block 8. Available hardwood final harvest volume (does not include any available partial

cutting volume). For each timber type (species), the hardwood volume in age

classes equal to and greater than the minimum harvest age(s) entered in the

MU(s). This values includes growth on harvest. There is no MU-level value of this

variable; the HU-level value is computed in subroutine AGGREG except for totals

computed in SUMHU.

Block 9. Timber type (species). The timber type or species names are listed for reference

to blocks 8 and 9. These are input in the file HARVEST.

ATACRE Output

ATHUR and ATMUR

Output

Internal ATLAS computations—Values at the ML) level are computed and stored in the

specified subroutines. Age-class values at the HU level, which start with "T," are summed

in SUMMU); average diameters, available volume totals, and adjusted gain are computed in

SUMHU. Some HU-level timber-type values, which start with "X," also are summed in

SUMMU. Other HU-level summary values, which also start with "X," are set in SUMHU.

File ATACRE contains HU-level total area by Ml and timber type subdivided by area in

inventory, area harvested, and area regenerated. The sections are separated by description and column titles but are not additionally marked. Within each section, there is a row

of values for each period of the simulation; the row contains five columns of MIs and a total

column. Unstocked acres are not included. Values are summed in subroutine SUMMU

except for the total regeneration acres, which are summed in SUMHU.

Inventory area is the value at the start of the period, and both harvest and regeneration

take place over the period. It is incorrect to sum area from the three sections, because for

some acres it can lead to double (or triple) counting. In this simulation, for example, the

harvested acres are already counted in the inventory, and they also are counted in regeneration (along with the acres gained via area gain).

Files ATHUR and ATMUR contain age-class tables for the HU and MU aggregation of

inputs, respectively. The output pages of both files have the same four age-class sections

marked as blocks 1 to 4 on the sample output. The page of totals across all Mis has an Ml

section, block 5. An exception to this format occurs when the ending period of the simulation is chosen; for each MU or HU, an additional page is written to report the inventory at

the end of the simulation (only blocks 1 and 5). If a simulation has only one MU, then the

ATHUR and ATMUR reports would be identical (for the same level of detail).

This example shows the ATHUR report and a page of the ATMUR report when period 2

(1990) was chosen. All inventory values represent volume at the beginning of 1990 and the

reported growth, harvest, and area change occurring over period 2 (between the start of

1990 and the end of 1994). The level of detail chosen for ATHUR was 1, and the level of

detail chosen for ATMUR was 2. There were three MUs in the simulation, so this ATHUR

report is complete—it represents the sum of these units. The ATMUR report shown here is

just one page of the MU-2 report (Southeast, forest industry, planted pine, medium site

class, Ml-3). The original report file contained a one-page report for each Ml in each MU

plus a summary page for each MU. Selecting additional report periods will increase the

number of report pages.

54 Appendix C
FILE ATACRE

P C - A T L A S ATLAS linked with TAMM90 - Base Run 8-Extended Harvest.

Run on 1/30/1991 11: 6:15 Using RAF from 1/30/1991 11: 6: 9

Harvest

Pd Year

0 1980

1 1985

2 1990

3 1995

4 2000

5 2005

6 2010

7 2015

8 2020

9 2025

10 2030

11 2035

12 2040

Pd Year

0 1980

1 1985

2 1990

3 1995

4 2000

5 2005

6 2010

7 2015

8 2020

9 2025

10 2030

11 2035

Pd Year

0 1980

1 1985

2 1990

3 1995

4 2000

5 2005

6 2010

7 2015

8 2020

9 2025

10 2030

11 2035

Unit 1 SE FI SU

Inventory Acres by

REG NO THIN

3.493

3.648

3.314

2.266

1.055

0.374

0.001

0.000

0.000

0.000

0.000

0.000

0.000

SE Forest Industry

Management Intensity

REG THIN

0.362

0.346

0.287

0.175

0.078

0.018

0.018

0.010

0.000

0.000

0.000

0.000

0.000

Softwoods

for PLANTED PINE.

IMP NO THIN

1.239

1.727

2.273

2.934

3.647

4.001

4.256

4.314

4.373

4.404

4.436

4.434

4.433

Harvest Acres by Management Intensity for PLANTED PINE.

REG NO THIN

0.306

0.589

1.048

1.211

0.681

0.373

0.000

0.000

0.000

0.000

0.000

0.000

Regeneration Acres

REG NO THIN

0.461

0.255

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

REG THIN

0.024

0.069

0.112

0.098

0.060

0.000

0.007

0.010

0.000

0.000

0.000

0.000

IMP NO THIN

0.000

0.000

0.005

0.689

0.910

0.669

0.667

1.174

1.244

0.991

0.892

1.190

by Management Intensity for PLANTED PINE.

REG THIN

0.007

0.010

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

IMP NO THIN

0.488

0.546

0.667

1.402

1.264

0.923

0.725

1.232

1.276

1.023

0.892

1.190

IMP THIN

0.255

0.546

0.885

1.319

1.775

2.004

2.149

2.186

2.225

2.243

2.261

2.259

2.257

IMP THIN

0.000

0.000

0.000

0.000

0.060

0.195

0.292

0.339

0.433

0.456

0.287

0.338

IMP THIN

0.292

0.339

0.433

0.456

0.289

0.340

0.329

0.378

0.451

0.474

0.287

0.338

IMPROVED INTEN

0.000

0.312

0.931

2.026

3.196

3.779

4.178

4.274

4.372

4.421

4.471

4.470

4.469

IMPROVED INTEN

0.000

0.000

0.000

0.000

0.232

0.699

1.094

0.979

0.846

1.043

1.386

1.048

IMPROVED INTEN

0.312

0.619

1.094

1.170

0.816

1.099

1.191

1.076

0.896

1.092

1.386

1.048

Total

5.349

6.579

7.690

8.719

9.750

10.175

10.601

10.786

10.970

11.069

11.168

11.163

11.159

Total

0.330

0.658

1.165

1.997

1.943

1.936

2.060

2.502

2.524

2.491

2.565

2.577

Total

1.560

1.769

2.194

3.028

2.368

2.362

2.245

2.686

2.623

2.590

2.565

2.577

Appendix C 55
FILE ATHUR (When HUREP=1)

P C - A T L A S ATLAS linked with TAMM90 - Base Run 8-Extended Harvest.

Run on 1/30/1991 1 1 : 6:15 Using RAF from 1/30/1991 1 1 : 6: 9

Harvest U n i t 1 SE

P e r i o d 2 Year 1990

FI SW SE F o r e s t I n d u s t r y Softwoods

T o t a l over Management Intensities

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

1

Acres

1.769

1.560

1.745

1.298

0.795

0.523

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

7.690

0.000

7.690

Inventory

SW Inv

0.000

435.480

1662.976

1205.116

979.374

1019.230

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

5302.176

at start of period

HW Inv

0.000

16.386

20.321

14.826

8.806

10.063

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

70.402

Com Inv

0.000

451.867

1683.297

1219.942

988.181

1029.293

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

5372.579

AvD Inv

6.121

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Req

Regen

3

Acres

0.000

0.000

0.000

0.022

0.620

0.523

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.165

2.194

Harvest

SW Har

0.000

0.000

0.000

122.153

841.577

1246.167

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

2209.898

during period

HW Har

0.000

0.000

0.000

1.001

7.973

12.177

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

21.151

Com Har

0.000

0.000

0.000

123.154

849.550

1258.344

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

2231.049

2231.049

FH Prop AvD Har 0.000

0.000

0.000

0.011

0.394

0.595

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.000 7.664

MI

1

2

3

4

5

6

Acres

3.314

0.287

2.273

0.885

0.931

Inventory at

SW Inv

2615.175

455.630

1680.968

444.363

106.041

start of

HW Inv

39.025

3.767

18.245

6.210

3.156

period

Com Inv

2654.199

459.397

1699.213

450.572

109.197

MI I d e n t i f i c a t i o n

REG NO

REG

IMP NO

IMP

IMPROVED

THIN

THIN

THIN

THIN

[NTEN

2 Growth

SW Gro

0.000

538.157

1205.380

1297.992

780.629

306.457

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

4128.613

during

HW Gro

0.000

17.855

4.256

4.656

1.981

3.142

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

31.890

period

Com Gro

0.000

556.012

1209.636

1302.647

782.610

309.598

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

4160.504

4

Acres

1.029

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.029

Net

SW Met

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Area Change

HW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

56 Appendix C
FILE ATMUR (When MUREP=2)

P C - A T L A S ATLAS l i n k e d w i t h TAMM90 - Base Run 8- Extended Harvest,

Run on 1/30/1991 1 1 : 6:15 Using RAF from 1/30/1991 1 1 : 6: 9

Harvest U n i t 1 SE

Period 2 Year 1990

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

FI SU SE Forest Industry Softwoods

Management Unit 2 SE-FI-PP-MEDIUM Management Intensity 3 IMP NO THIN

1

Acres

0.340

0.312

0.695

0.215

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.562

Inventory at start of period

SW Inv

0.000

90.779

781.360

262.686

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1134.825

HW Inv

0.000

2.808

7.893

2.653

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

13.353

Com Inv

0.000

93.586

789.253

265.340

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1148.178

AvD Inv

5.980

2 Growth

SW Gro

0.000

98.981

252.299

593.210

110.055

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1054.545

during

HW Gro

0.000

3.061

0.658

5.992

1.112

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

10.823

period

Com Gro

0.000

102.042

252.957

599.202

111.167

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1065.368

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Regen

3

Acres

0.000

0.000

0.000

0.005

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.005

0.447

Harvest

SW Har

0.000

0.000

0.000

8.237

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

8.237

during period

HW Har

0.000

0.000

0.000

0.083

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.083

Com Har

0.000

0.000

0.000

8.320

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

8.320

FH Prop AvD Har 0.000

0.000

0.000

0.006

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.006 6.800

4

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Net

SW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Area Change

HW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

.0.000

ATHUR and ATMUR

Key

Values for each age-class section are as follows:

Block 1. Inventory at the start of the period.

Age-class values for acres and volumes.

Total values for stocked acres and their volumes.

Average diameter of stocked acres.

Unstocked acres.

Grand total acres.

Appendix C 57
Block 2. Growth during the period, including growth on harvest.

Age-class values for volumes.

Total volumes for stocked acres.

Block 3. Harvest during the period, including exogenous harvest, final harvest, and partial

cutting.

Age-class values for acres, volumes, and proportion of final harvest from the

class. Note: Acres includes only area final harvested; it does not include area

subject to commercial thinning or partial cutting.

Total values for acres, volumes, and proportion of final harvest and average

diameter of the final harvest.

Harvest request (Req), the amount assigned to the MU will appear under the

fiber type of the request.

Total regenerated acres (Regen), including acres from unstocked, cut acres, and

acres gained in the zero age class.

Block 4. Net area change, which is the difference between area and volumes gained, and

area and volumes lost. Net loss of area and volume is negative, and net gains

are positive.

Age-class values for acres and volumes.

Total values for acres and volumes.

Values for the Ml section are as follows:

Block 5. Inventory at the start of the current period. Acres and volumes in each Ml and

the Ml identification (from HARVEST file). Block 5 is not printed on individual Ml

reports.

ATTMU Output This MU-level output file includes the same MU totals found in the file ATMUR (the values

are summed by all age classes). But unlike ATHUR, there is no option to select specific

periods for output. When selected, this report includes the totals for every MU for every

period of the simulation. To select this output file, enter the value 3 for the MU-level report

(in HARVEST, card type 03). This file will be produced Instead of ATMUR; the period

selection option on card type 05 has no effect on ATTMU.

The output is the year at the beginning of the period, the MU name, acres at the beginning

of the period, softwood and hardwood inventory (beginning of period), softwood and

hardwood growth (over the period), softwood and hardwood harvest (over the period),

acres gained or lost over the period, and softwood and hardwood volume gained or lost

over the period.

This file allows for analysis of MU by MU activities in a compact form. The file was written

with the FORTRAN format statement: FORMAT(1X,I4,5X,A15,10F10.3) .

58 Appendix C
FILE ATTMU

1980

1980

1980

1985

1985

1985

1990

1990

1990

1995

1995

1995

2000

2000

2000

2005

2005

2005

2010

2010

2010

2015

2015

2015

2020

2020

2020

2025

2025

2025

2030

2030

2030

2035

2040

2035

2040

2035

2040

ATINV Output

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-HIGH

SE-FI-PP-HIGH

SE-FI-PP-MEDIUM

SE-FI-PP-MEDIUM

SE-FI-PP-POOR

SE-FI-PP-POOR

1.207

3.681

0.460

1.485

4.528

0.566

1.736

5.292

0.662

1.968

6.001

0.750

2.201

6.710

0.839

2.297

7.003

0.875

2.393

7.296

0.912

2.435

7.423

0.928

2.476

7.550

0.944

2.499

7.618

0.952

2.521

7.686

0.961

2.520

2.519

7.683

7.680

0.960

0.960

1048.417

1220.988

72.245

1374.935

2037.629

122.703

1803.634

3309.185

189.358

2350.468

4592.045

278.378

2724.346

5136.040

341.448

2929.038

5707.668

375.955

3234.380

6865.076

404.360

3633.804

7626.828

458.870

3682.440

7552.347

487.307

3589.324

7332.955

490.195

3509.451

7352.689

467.202

3543.487

3608.500

7265.179

7261.521

447.542

466.012

12.829

28.228

0.606

17.366

35.511

0.000

21.844

48.558

0.000

20.858

60.283

0.000

20.130

65.993

0.000

24.023

72.597

0.000

25.043

79.190

0.000

24.379

86.615

0.000

23.997

85.950

0.000

24.854

85.586

0.000

24.249

85.350

0.000

25.697

24.729

84.171

84.377

0.000

0.000

643.008

1212.299

76.365

960.360

2025.163

126.807

1277.703

2668.069

182.841

1487.182

3099.835

238.534

1727.503

3785.708

295.502

1945.339

4423.732

338.483

2021.439

4652.911

357.400

2031.042

4580.267

371.526

2007.696

4591.983

376.443

2066.600

4739.325

378.140

2099.442

4805.321

381.385

2104.763

4736.181

379.343

8.464

10.882

-0.606

10.667

20.101

0.000

7.372

24.518

0.000

6.672

31.923

0.000

9.556

41.283

0.000

8.031

41.876

0.000

5.777

46.666

0.000

7.309

46.217

0.000

8.941

48.235

0.000

8.079

47.437

0.000

7.291

48.249

0.000

6.497

48.088

0.000

316.490

395.658

25.908

531.661

753.607

60.152

730.869

1385.209

93.820

1113.303

2555.841

175.464

1522.812

3214.081

260.995

1639.997

3266.324

310.078

1622.014

3891.158

302.890

1982.406

4654.748

343.089

2100.812

4811.375

373.555

2146.473

4719.591

401.133

2065.417

4892.859

401.046

2039.764

4739.871

360.873

3.927

3.600

0.000

6.188

7.054

0.000

8.358

12.793

0.000

7.400

26.214

0.000

5.663

34.678

0.000

7.011

35.283

0.000

6.441

39.242

0.000

7.690

46.881

0.000

8.085

48.600

0.000

8.684

47.673

0.000

5.833

49.411

0.000

7.455

47.866

0.000

0.278

0.847

0.106

0.251

0.764

0.096

0.232

0.709

0.088

0.233

0.709

0.089

0.096

0.293

0.036

0.096

0.293

0.037

0.042

0.127

0.016

0.041

0.127

0.016

0.023

0.068

0.008

0.022

0.068

0.009

-0.001

-0.003

-0.001

-0.001

-0.003

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Like file ATTMU, output to ATINV is unlabeled and intended as possible input to other

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-0.010

-0.016

0.000

-0.010

-0.016

0.000

FILE ATINV

computer programs or spreadsheets. The first line contains the 10-character HUNAME, and

six numeric values; the remaining lines each contain six numeric values, except for the last

line, which contains two numeric values. The six values are softwood and hardwood inventory volumes at the start of the period, softwood and hardwood growth volumes for the

period, and softwood and hardwood harvest from all sources. The two values on the last line

are softwood and hardwood inventory values at the end of the last period, which are the

inventory values for the start of the period after the simulation.

A single line with date and time of the run is written in main program ATLAS. The FORTRAN

format for the line is FORMAT(' ATLAS Inventories from \2A10). The remaining lines, one

per simulation period plus a short line for each harvest unit, are written in FORTRAN format

as FORMAT(1 X.A10.6F10.3/(11 X.6F10.3)) .

The following example of ATINV is from the same 12-period PC-ATLAS simulation presented

in the other examples of output.

PC-ATLAS

SE F I

Inventories

SW 2341.650

3535.267

5302.176

7220.892

8201.834

9012.661

10503.816

11719.502

11722.094

11412.474

11329.343

11256.208

11336.033

from 1/30/1991

41.663

52.876

70.402

81.142

86.123

96.621

104.233

110.993

109.948

110.440

109.599

109.868

109.106

1931

3112

4128

4825

5808

6707

7031

6982

6976

7184

7286

7220

11:

.672

.330

.613

.550

.714

.554

.750

.835

.122

.065

.147

.288

6:15

18.

30.

31.

38.

50.

49.

52.

53.

57.

55.

55.

54.

740

768

890

595

839

907

443

526

177

516

540

585

738.056

1345.420

2209.898

3844.608

4997.888

5216.399

5816.062

6980.243

7285.743

7267.196

7359.322

7140.509

7.

13.

21.

33.

40.

42.

45.

54.

56.

56.

55.

55.

527

242

151

614

341

294

683

571

684

357

245

321

Appendix C 59
ATLOG Output The ATLOG output contains a period-by-period report of runtime errors and informative

messages. Some of the messages also are written to the computer screen during the

simulation. Messages were intended to stand without further need for explanation, but it is

helpful to understand subroutine names and variable names and to know what to look for

in the messages. The file contains the names of the harvest units processed, the status of

the report flag, and if errors occur, it includes an error (or warning) message and the

name(s) of the subroutine(s) where any error was detected.

In this example, both the HU- and MU-level reports were written for period 2. Error messages were written when the harvest request could not be met in period 6. In this case, the

first error messages are reported from the subroutine APPORT (where the calculations are

made to allocate the harvest). The values from APPORT are in millions of cubic feet. First

is the HU summary total. Reported is the total volume available for harvest, the harvest

request, and the exogenous harvest already recovered (in the form of thinning, see ATLIST

block 2.D.). The available volume minus the request will be the unsatisfied shortage, which,

is reported in ATLIST under the heading Com Dif in block 2.F. The request plus the exogenous volume equals the total harvest request reported on the next line (the total originated in the file HARVEST, see also ATLIST block 2.F.). The proportion is simply the ratio

of available volume to the unsatisfied harvest request. Next in the error message is the

MU-by-MU reporting of how harvest will be allocated and where the volume shortage is

distributed. Notice that the MU labeled MEDIUM (for medium site class) carries the greatest available volume and is assigned the largest proportion of harvest volume. The final

error message is from the subroutine HARV (where harvest is subtracted from the inventories). This message indicates that even after the allocation of harvest, an error existed

between what was available and what was assigned to the medium site MU. The values

reported from HARV are in actual amounts, not millions. Comparing the shortage to the

amount available shows that the unsatisfied volume was very small (0.000007 percent of

available volume) and probably a result of an internal rounding error. A difference this small

should not be a concern, and it is not possible to calculate it from the regular outputs.

60 Appendix C
FILE ATLOG

P C - A T L A S

Run on 1/30/1991

ATLAS linked with TAMM90

at 11: 6:15

Base Run 8-Extended Harvest.

Period 0

HU 1 SE FI SW Reports 0 0

SE Forest Industry Softwoods

Period 1

HU 1 SE FI SW Reports 0 0

SE Forest Industry Softwoods

Period

HU

SE

1 SE FI SW Reports 1 1

Forest Industry Softwoods

Period 3

HU 1 SE FI SW Reports 0 0

SE Forest Industry Softwoods

Period 4

HU 1 SE FI SW Reports 0 0

SE Forest Industry Softwoods

Period

HU

SE

1 SE FI SW Reports 0 0

Forest Industry Softwoods

Period 6

HU 1 SE FI SW Reports 0

SE Forest Industry Softwoods

Warning Error in APPORT during period

Avail 5494.440

Total 5881.743

Warning Error in APPORT

I n s u f f i c i e n t volume

Warning Error in APPORT

I n s u f f i c i e n t volume

Warning Error in APPORT

I n s u f f i c i e n t volume

Warning error in HARV

HU 1 SE FI SW HU

U n s a t i s f i e d volume

6 year 2010 f o r HU

Req 5514.438 Exog

Prop 0.996

d u r i n g p e r i o d 6 year 2010 f o r

1516.207 f o r harvest request

d u r i n g p e r i o d 6 y e a r 2010 f o r

3675.343 f o r harvest request

d u r i n g p e r i o d 6 year 2010 f o r

302.890 f o r harvest request

during p e r i o d 6 year 2010

60312000 SE-FI-PP-MEDIUM Harvest

256.000 of harvest request

1 SE F I

367.305

SW final harvest

HU

HU

HU

SW

SW

1 SE FI

1521.725

1 SE FI

3688.720

1 SE FI SW

303.993

type 3

3675343360.000

MU 60311000 SE-FI-PP-HIGH

MU 60312000 SE-FI-PP-MEDIUM

MU 60313000 SE-FI-PP-POOR

Period

HU

SE

Period

HU

SE

1 SE FI SW Reports 0

Forest Industry Softwoods

8

1 SE FI SW Reports 0

Forest Industry Softwoods

Period 9

HU 1 SE FI SW Reports 0 0

SE Forest Industry Softwoods

Period 10

HU 1 SE FI SW Reports 0 0

SE Forest Industry Softwoods

Period 11

HU 1 SE FI SW Reports 0 0

SE Forest Industry Softwoods

Normal exit from PC-ATLAS

Appendix C 61

0

7
Appendix D:

Program

Descriptions

Program IUSCAN

Program MUSCAN

Main program IUSCAN opens files, initializes values, and gets the date and time; reads

data in character form until a set is recognized, and prints the character form of the data;

interprets the numeric values for IU identifying code, card type, Ml, and age class; converts

the six data fields into numeric values; and assigns the values to program variables depending on card type and Ml. The IUSCAN program writes the data in unformatted (binary)

form on the random access file IURAF.

Within IUSCAN are the following subroutines:

SET—counts errors and resets the message for repeated errors on the same IU card.

CHECK—writes a FORTRAN page eject and page headings for every NTEST number of

lines.

SHELL—sorts the IU identifying codes into ascending numeric order and keeps the IURAF

location index and error counts with the corresponding identifying code.

IUREP—reports the processed data for each IU.

PRLIST—reports the list of IU identifying codes with the IURAF location index and error

count for each IU. It also finds any duplicate IU identifying codes.

Main program MUSCAN opens files, initializes values, and gets the date and time; reads

data in character form until a set is recognized, and prints the character form of the data;

interprets the numeric values for MU identifying code, card type, MIs, and age class and

period; converts the six data fields into numeric values; and assigns the values to program

variables by card type and other values. The MUSCAN program sets the user default value

to the program default for missing cards, checks proportions which must sum to 1.0,

checks age-class limits, and counts preselected shifts and thinning entries. It also checks

for required cards and prints the types of missing cards, for which program defaults are

used. The MUSCAN program writes the data in unformatted (binary) form on the random

access file MURAF.

Within MUSCAN are the following subroutines:

MUDATA—the block data section for MUSCAN.

INIT—initializes data.

SET—counts errors and resets the message for repeated errors on the same MU card.

CHECK—writes a FORTRAN page eject and page headings for every NTEST number of

lines.

SINGLE—processes input for one-dimensional real arrays, which are always dimensioned

by age class or period (AOP). It checks the AOP value to see that no duplicate values are

supplied, and keeps track of the blank fields, which are set to the default value. It also

screens values less than the minimum legal value or more than the maximum legal value.

SINlNT—processes input for one-dimensional integer arrays, similarly to SINGLE.

62 Appendix D
DOUBLE—processes input for two-dimensional real arrays, which have the first dimension

by age class and period AOP, and the second-dimension ILIM supplied by MUSCAN; ILIM

is most commonly 5 for the levels of Ml. It initializes the AOP counting for each new value

of ILIM. Within a value of ILIM, DOUBLE performs the same functions as SINGLE.

TRIPLE—processes input for three-dimensional real arrays, which have the first dimension

by age class and period AOP, and the second and third dimensions, ILIM and JLIM,

supplied by MUSCAN. Both ILIM and JLIM are 5 and represent MIs of source and destination. For each new pair of ILIM and JLIM, TRIPLE initializes the AOP counting. Within

entries belonging to the pair, TRIPLE performs the same functions as SINGLE.

FILONE—sets missing values of one-dimensional real arrays to the default value. The

-1 location contains the program default or specified user-default value.

FILINT—sets missing values of one-dimensional integer arrays to the default value. The

-1 location contains the program default or specified user-default value.

FILTWO—sets missing values for two-dimensional real arrays to the default value. The

-1 location for each value of ILIM, the second dimension, contains the program default or

specified user-default value.

FILTHR—sets missing values for three-dimensional real arrays to the default value. The

-1 location for each pair of ILIM and JLIM, the second and third dimensions, contains the

program default or specified user-default value.

MUREP—reports the processed data for each MU.

PUT1—writes nonzero values of one-dimensional real arrays to a character variable,

according to the supplied format. This character variable is then printed, with blanks for

zero values, thereby reducing report clutter.

PUT2—writes nonzero values of two-dimensional real arrays to a character variable, similarly to PUT1.

PRLIST—reports the list of MU identifying codes with the MURAF location index and error

count for each MU. It also finds any duplicate MU identifying codes.

SHELL—sorts the MU identifying codes into ascending numeric order and keeps the

MURAF location index and error counts with the corresponding identifying code.

RDC—evaluates the relative-density-change equation.

Program HUSCAN Main program HUSCAN opens files, initializes values, and gets the date and time; reads

general HU data in character form until the first HU individual card is found, and prints the

character form of the data; interprets and assigns the values to program variables; and

writes the general run information on the BIGRAF key record, number 1.

Within HUSCAN are the following subroutines:

HUDATA—the block data section for HUSCAN.

Appendix D 63
Program ATLAS

CHECK—writes a FORTRAN page eject and page headings for every NTEST number of

lines.

GENREP—reports the processed general HU data.

HULOOP—reads individual HU data in character form until a set is recognized, and prints

the character form of the data; interprets and assigns the values to program variables; and

writes the individual HU data on a single BIGRAF record.

SET—counts errors and resets the message for repeated errors on the same individual

HU card.

FILONE—sets missing values of one-dimensional real arrays to the default value. The

-1 location contains the program default or specified user-default value.

HUREPO—reports the processed individual HU data.

SUM—reads the IU and MU location indexes from IURAF and MURAF on the initial call.

Subroutine SUM uses the information to find each MU belonging to the HU and reads its

organized data from MURAF. It then locates each IU belonging to the MU, reads the

organized IU data from IURAF, checks the stocking proportions against the HU limit, and

sums the IU inventory data into MU totals. Then SUM attempts to reassign to other age

classes those volumes per acre that exceed the HU limit and writes the MU data from

MURAF and the MU summed inventory data on a single record on BIGRAF.

BINSRC—locates the element ID in the sorted list of identifying codes LIST, and returns

the array index in IND. If ID is not found, IND is 0. This routine is used for finding both IU

and MU identifying codes in their respective lists.

MUCOMB—reports the combined MU inventory data, which may have been reassigned

by SUM.

Main program ATLAS opens files, initializes values, and gets the date and time; it loops

through the strata (such as, regions, owners, and forest fiber types), calling the subroutines

that perform the simulation functions. Figure 7 shows the sequencing in ATLAS by subroutine name; figure 8 is the same flowchart with text in place of the subroutine name.

Within ATLAS are the following subroutines:

RUNIN—makes the run time initializations.

ATTERM—ends the program run if errors are found.

HUINIT—brings in data for an HU, initializes the summary variables that begin with "X" for

the zero period, and initializes the summary variables that begin with "T" in every period.

DUMPHU—reports the HU input data.

MUINIT— brings in data for an MU, initializes the MU summary variables, and stores the

starting inventory summary.

DUMPMU—reports the MU input data, except for the inventory data.

64 Appendix D
Figure 7—Flowchart of subroutines in program ATLAS.

Appendix D 65
Figure 8—The flowchart from figure 7 with descriptive names replacing the proper ATLAS subroutine names.

66 Appendix D
DUMPIN—reports the MU inventory data, the arrays ACINI, VOLINI, and VPAINI at the

beginning of the last subroutine executed; the arrays ACREG, VOLREG, and VPAREG at

the end of the last subroutine executed; and the differences between the respective arrays,

representing the change occurring during the last subroutine executed.

ALOSS—computes area loss and assigns it to age classes in the specified groups if possible. The fail-safe computation removes acres by oldest first. Acres and volumes lost to

the inventory and volumes recovered as exogenous harvest are computed.

UPINI—transfers the values from arrays ACREG, VOLREG, and VPAREG, respectively,

to arrays ACINI, VOLINI, and VPAINI, and recomputes total acres in REGTOT.

THIN—removes thinning volumes. Acres and volumes thinned are computed. Thinning volume is considered exogenous.

AGGREG—computes volume available for final harvest and partial cutting.

BACAPN—computes the volume available from partial cutting from the existing age class

to the target age class.

RETAPN—computes the previous stocking proportion that an existing age class had at an

earlier age class.

APPORT—apportions the final harvest and partial cutting volumes to MUs belonging to an

HU, according to the proportion of total available volume in the MU divided by total available volume in the HU, after subtracting exogenous volume from the original requests.

MUREST—rereads the MU data.

HARV—assigns the final harvest volume for the MU to individual age classes within MIs,

starting with the preferred harvest proportions. The fail-safe assignment if the final harvest

is not satisfied by the preferred proportions is oldest first. Acres and volumes harvested are

computed, as are average diameters of the harvest.

PARCUT—assigns the partial-cutting volume for the MU to individual age classes within

MIs. Acres and volumes partially cut are computed, as are average diameters of the partial

cut.

SHIFT—makes preselected shifts among management intensities, for ages classes 1 to

MAXAGE. The existing volumes are averaged into the volumes for the shifted MIs.

GROWTH—computes growth via the yield table and relative-density-change equation.

RDC—computes the end-of-period stocking proportion for an age class.

AGAIN—computes area gain and assigns the acres to age classes. Growth corresponding

to density change for a half-period is computed for age classes 1 to MAXAGE, and that

amount of the volume gained is assigned to growth. The remaining volume gained is the

adjusted area gain value.

BACGAI—computes the stocking proportion of the previous period for an age class.

Appendix D 67
Appendix E:

Introduction to

PC-ATLAS

System Requirements

Setting Up Your

System

REGEN—computes regeneration of unstocked and harvested acres, which are added to

any acres gained in the zero age class. Preselected shifts among MIs for this age class are

made, and appropriate volumes per acre are assigned. The entire volume in the zero age

class is assigned to growth. Acres regenerated, including and excluding acres gained in the

zero age class, are computed.

SUMMU—writes MU data on the CURRAF and sums MU) variables.

SUM—stores the end-of-the-period inventory and computes summary variable totals.

REPMU—reports MU age-class values on file ATMUR.

SUMHU—sums HU variables and writes HU data on the CURRAF.

REPHU—reports HU age-class values on file ATHUR.

FINAL—reads HU data from BIGRAF and CURRAF and writes data on file ATINV.

I DENT—reports the summary information, including the inventory identity, on file ATLIST.

The mainframe ATLAS program has been compiled to run on IBM-compatible personal

computers. The personal computer version of ATLAS (PC-ATLAS) is nearly identical to the

stand-alone mainframe version. We expect the PC version will become more widely used

than its mainframe parent. This section is intended to help PC users manage the model in

the DOS environment and to illustrate differences between PC-ATLAS and mainframe

ATLAS. It assumes the reader is already familiar with the DOS operating system.

The four PC-ATLAS programs have been compiled with either RM/FORTRANTM version

2.4, (Ryan-McFarland Corp.) or Microsoft® FORTRAN version 5.0. Running PC-ATLAS on

a microcomputer requires the following hardware and software:

At least 300K bytes of memory for program execution.

Hard disk, bernoulli drive, or memory drive of at least 1M byte.

DOS 2.1 or later.

Math-coprocessor chip (8087, 80287, or 80387).

The following section is provided to help users efficiently run the PC-ATLAS programs on

a microcomputer. The programs themselves are large and they create many large files. To

avoid system errors, the CONFIG.SYS file of the computer should contain the following

minimum parameters:

Buffers = 20

Files = 20

Fcbs = 20,20 (if using DOS 3.x)

Break = on (not required but recommended)

If the CONFIG.SYS file does not contain these settings, add them and reboot the system

before attempting to run PC-ATLAS programs. These settings should not interfere with the

operation of any other software, so they can remain in the CONFIG.SYS file when PCATLAS is not being used. If these parameters are unfamiliar, reference section on configuring your system in your DOS manual. (If buffers and files currently are larger than 20, they

do not need to be changed.)

68 Appendix E
Batch Files To execute any of the PC-ATLAS programs, a special parameter is required to allow RyanMcFarland FORTRAN to read and write long, direct-access input and output records. The

following parameter needs to be entered on the command line just after the program name:

/R 2000. To execute the IUSCAN program enter: IUSCAN/R2000(in either upper or lower

case).' Because this is an awkward command, it makes sense to use batch files to save

keystrokes (and errors); for example, the batch file called GOIU needs to contain a oneline entry: IUSCAN/R2000. To easily run an entire simulation, a batch file called RUNALL

could contain the following:

IUSCAN/R2000

MUSCAN/R5000

HUSCAN/R8000

ATLAS/R32000

As each program finishes execution, the next begins. (If a program finishes execution after

reporting errors, the ATLAS program will detect this condition, report an error message to

the screen, and abruptly stop.)

Batch files can be developed to erase unneeded files after a run. Each time HUSCAN and

ATLAS are run, 10 new files are created (LIST.HU, TREE, BIGRAF, CURRAF, ATMUR,

ATHUR, ATLIST, ATINV, ATACRE, and ATLOG). File maintenance can be simplified by

using a batch file to delete unwanted files after a simulation (be sure to first rename, or

copy, any files that should be saved; that is, LIST.HU or ATLIST). If you are unfamiliar with

batch files, see your DOS manual.

File Handling The PC-ATLAS programs require the user to provide three input files; the programs create

an additional 14 files. File management can be simplified by using DOS subdirectories to

separate the PC-ATLAS programs and batch files from the input and output files. Subdirectories should be used to keep related sets of inputs and outputs together.

The program files should be stored apart from the inputs and outputs by invoking the DOS

PATH statement. The PATH statement will act to bridge subdirectories so that the program

and batch commands will operate as if they reside locally. It is possible to run PC-ATLAS

from any subdirectory (or disk drive) as long as the input files (INVEN, MANAGE, and

HARVEST) reside in the "current" directory. A PATH statement can be issued from the

keyboard or be added to the AUTOEXEC.BAT file. The following example illustrates how

to create subdirectories for the program and input files and how to add the PATH statement to the AUTOEXEC.BAT file:

First create the subdirectories PCATLAS and DATA on drive C: (any hard drive will do)

with the commands MD\PCATLAS and MD\DATA.

Modify the path command in the AUTOEXEC.BAT file to contain the string C:\PCATLAS.

1

 The minimum record-length parameter required for each program

is different; BRUSCN will run with a record-length parameter of 2000

and ATLAS requires a value of 32000. Larger values cause no

problems, and for simplicity the same number can be used for all

programs (32000). This parameter is ignored when programs are

compiled with Microsoft FORTRAN.

Appendix E 69
Using RAM Memory

A change to the path statement might look like this:

Before: path c:\dos;c:\fortran

After: path c:\dos;c:\fortran;c:\pcatlas

If there is no PATH command in the AUTOEXEC.BAT file, see the DOS manual and create

one. A PATH statement will allow the DOS command (COM) files to be stored together in a

subdirectory rather than in the root directory of drive C:. Be sure to include that subdirectory in the PATH statement. The modification to AUTOEXEC.BAT will remain transparent;

PATH can be invoked at all times without affecting the performance of other applications.

Copy the PC-ATLAS EXE and any BAT files into the C:\PCATLAS subdirectory, and copy

the input files (INVEN, MANAGE, HARVEST) into the subdirectory C:\DATA. The PCATLAS programs can now be run from the\DATA subdirectory by using the appropriate

commands (IUSCAN/R2000, GOIU, and so forth). All PC-ATLAS output files will be written

to the \DATA subdirectory. With the use of the PATH command shown above there is no

restriction as to the subdirectory, or drive, that must be current to run PC-ATLAS; for example, a user can insert a floppy disk in drive A:, which contains the INVEN file, and issue

the GOIU command from drive A:. The IUSCAN program located in C:\PCATLAS reads

INVEN from A: and writes the outputs to drive A:.

A word of caution: Create a logical system to rename the input and output files. Because a

single simulation involves 17 files that always have the same names, it is easy to become

confused over the differences among sets of inputs and outputs. We recommend the use

of a scratch subdirectory or drive to make most simulations. Create inputs in a separate

subdirectory and copy them to the scratch subdirectory dedicated to input and output files.

After the simulation, edited inputs and savable outputs can be renamed and copied into

other subdirectories for saving. When a session is finished, CURRAF and BIGRAF should

be deleted because they will have no further use and they occupy disk space.

Note: The ASCII (American Standard Code for Information Interchange) input files are 80

columns wide and the ASCII output files are 122 columns wide. A condensed print mode is

required to print the output files on an 80-column printer.

The PC-ATLAS programs are "disk intensive," meaning that a program will spend much of

the total processing time reading and writing files on the disk. An increase in the disk

access speed can significantly reduce the time required for PC-ATLAS to complete a

simulation. A noticeable decrease in processing time can be accomplished by using

random access memory (RAM) configured as a disk drive. A RAM drive may require the

addition of an expanded (or extended) memory board to the computer. For the execution of

PC-ATLAS, a RAM drive of 3 to 4 megabytes should be sufficient; however, a simulation

using 50 or more MUs will require prudent file management.

This procedure works well with the subdirectory and PATH approach described above (the

executable PC-ATLAS programs themselves require over 600K bytes). The PC-ATLAS

programs will load into operating system memory from their subdirectory on the hard disk,

and all file reading and writing will take place on the RAM memory disk rather than on a

slower physical disk.

One final reminder concerning RAM drives; they lose all memory when the power is off.

The inputs INVEN, MANAGE, and HARVEST will need to be copied to the RAM drive

before the run. When the run is finished, copy the inputs back to the hard disk if they have

70 Appendix E
Rounding Problems

Appendix F:

Comparison of

Input and Output From ATLAS and

PC-TRIM

Inventory

Management

been modified and need to be saved again (that is, if they were edited after being copied to

the RAM drive). If an output file is worth keeping, it can be copied to a subdirectory on the

hard disk. All files on the RAM disk are lost when the computer is turned off.

A PC does not necessarily carry the same precision or use the same rounding scheme as a

mainframe computer. The ATLAS program contains many error-checking algorithms that

often depend on a high level of precision (double precision). The single precision and rounding that takes place on the microcomputer will sometimes cause problems for MU card types

28 and 38 in the program ATLAS. Card type 28 is an Ml-shifting card that allows portions to

sum to 1.00. The MU card 38 allocates a proportion of the harvest to an age class, and the

total proportions should sum to 1.00. (See appendix A for more details about these MU card

types.) While ATLAS is running, it checks the total proportion of acres shifted or harvested;

if they sum to more than 1.0000, an error message is written to the CALLS file and the

program aborts.

These errors can be avoided by adjusting proportions (within an MU) so that the total is

slightly less than 1.0000. In the case of MU card 28, the error may occur when 100 percent

of the acres are shifted out of any one Ml category. The problem can be eliminated by

reducing the acreage shift by less than 1 percent; for example, if the total shift out of Ml 1

equals 1.00, then lower one card 28 so that the new total is equal to 0.9999. The same

strategy applies to MU card type 38; the sum of the harvest proportions should be slightly

less than 1.00 (0.9999 works fine); however, if the difference between 1.00 and the lower

sum is too great, the MUSCAN program will indicate an error. This solution to the errorchecking problem does not significantly alter projection results.

This section is intended to help PC-TRIM users quickly understand the differences between

PC-TRIM and ATLAS input files. In many cases, it should provide enough information to

allow a quick conversion of TRIM input decks into ATLAS input decks. The TRIM and

ATLAS input and output file names are listed; card types eliminated from the TRIM input are

followed by a star (*); card types that have changed definitions are listed as "NEW."

Most eliminated TRIM card types will be ignored by ATLAS programs. Problems will arise,

however, if the cards declared NEW are in the wrong format. For format questions, users

should reference appendices A, B, and C for detailed information.

The term inventory unit (IU) replaces basic resource unit (BRU). The input format is the same.

Program: IUSCAN (inventory unit scanner) replaces BRUSCN

Input file: INVEN the same for both models

Output files: IURAF binary file used by HUSCAN (replaces BRURAF)

LIST.IU replaces LIST.BRU

Card types: 1 unstocked acres—same

2* donor acres—eliminated

3 regular acres—same

The term management unit (MU) replaces grouped resource unit (GRU).

Program: MUSCAN (management unit scanner) replaces GRUSCN

Input file: MANAGE replaces CONTROL

Output files: MURAF binary file used by HUSCAN (replaces GRURAF)

LIST.MU replaces LIST.GRU

Appendix F 71
Card types:

00 name—same

01 IU list—same format, whole IUs only, no proportioning allowed

02 site, species, conversion species —same for species; site and conversion-species

deleted

03 MU options—PNW option replaced with harvest select option; where 1 = final harvest,

2 = partial cutting. Default = 1.

04* planting stock indicator—eliminated

05* PCT age—eliminated

06* fertilization age—eliminated

07 age limit for Ml shift—same

08 min. harvest age—same

09* rotation age—eliminated

10* discount rate—eliminated

New area-change cards, with examples from southern planted pine:

Card 11—Total acres in MU (incl. nonstocked) by period, in millions. Format same as

other cards that allow "fill-value," up to six decimal places may be declared

(field is F10.0). Acres in the starting period are determined by the IU. The first

card 11 entry represents acres at the end of the first period (and beginning of

the second period). One card per MU, no Ml designation. No card 11 means

that acres remain constant.

Period

2.519

2.393

60311000

60311000

60311000

11

11

11

0

6

2.519

1.485

2.435

1

2

.736

.476

1

2

.968

.499

2.201

2.521

2.297

2.520

Card 12—Proportions to distribute acreage increases (from card type 11) across age

classes. Entries are in age-class format (similar to card 33). Incoming acres are

assigned the volume per acre equal to the average stocking proportion multiplied by the yield-table volume associated with the age class. Entries should

sum to 1.0. One card per MU. This example shows that 100 percent of an

acreage increase will be assigned to age-class 0.

Age class

60311000 12 0 1.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Card 13—Exiting acre proportions. Proportion of acreage loss to come from designated

range of age classes. Up to 10 age-class ranges are allowed. A range may

consist of one age class or several (up to all age classes). Proportions should

sum to 1.0.

0 0.0400

1 0.2200

5 0.3410

17 0.3990

60311000

60311000

60311000

60311000

13

13

13

13

Group

number

1

2

3

4

0

1

2

6

72 Appendix F
Card 14—Ml to receive acre gain (default = acres assigned to MI-1 and redistributed based

on card 28). Eliminated economic cards:

15*. 16*, 17*. 18*. 19*, and 20*

Other cards:

21 unstocked to restocked—same

22 cut acres to unstocked—same

23 regeneration stocking (called stocking level midpoint in TRIM)—same

24 stocking thresholds, regen stocking—same

25* donor acre shift—eliminated

26* donor acre shift—eliminated

27* donor acre shift—eliminated

28 Ml shift—same

29 NEW—proportion of volume recovered from area loss (cards 11 and 13) by period, fill

value ok. Recovered volume is applied to harvest request. Two cards allowed, 1 in

column 14 is for softwood volume; 2 in column 14 is for hardwood volume.

30 NEW—relative-density-change parameters with option to use linear or quadratic form

of equation. A second card 30 can be used to differentiate regenerated stands from

existing stands. Variables: ENT (column 14), FULLDC, HALFDC, EQTYP, COEFDC

(or b1), COEFDC (or b2). EQTYP=1 for linear, EQTYP=2 for quadratic. ENT=1 for first

card 30, ENT=2 for second card 30—the regeneration option. In the case of ENT=2,

only CREGDC(1) and CREGDC(2) need to be entered and all other variables from the

first card 30 are used.

31* mortality salvage—eliminated

32 Average stand diameter by age—same

33 base yield tables—same

34 thinning volume—same

35* mortality volume per acre—eliminated

36 softwood proportion—same

37 growth on harvest multiplier—same

38 harvest proportion by age—same

39 unit conversion factor—same

40 NEW—partial-cutting "target" age class. In a partial cutting, ML) values entered by age

class represent the age class in which treated acre will be placed. Partial-cutting

volume removal is based on the difference in current age and target age. Target age

of zero means final harvest.

41 NEW—minimum allowable stocking for partial cutting to take place

Harvest The term harvest unit (HU) replaces allowable cut unit (ACU). The input format has some

changes. The "A" cards are now "H" cards.

Program: HUSCAN (harvest unit linker) replaces ACUSCN

Input file: HARVEST replaces HEADER

Output files: BIGRAF binary file for ATLAS

LIST.HU replaces LIST.ACU

TREE is a listing of IU acres and volume for each MU

Appendix F 73
Card types:

01 run header—same

02 NEW—starting year of simulation

03 NEW—diagnostic output request, first period of diagnostic output, last period for diagnostic output, summary report request, HU report request, MU report request

04 NEW reporting years for HU detailed output

05 NEW reporting years for MU detailed output

06 NEW minimun diameter for alternate volume conversion

07 NEW initial softwood fractions of harvest

HO harvest unit name (like old A1 card but now 60 characters)—new

H1 NEW- harvest unit ID (10 characters); period length; number of periods; relativedensity-change limit (1.0 = 100 percent); stocking warning flags: dcmin, dcmax

H2 MU membership list—same format

H3 harvest request—NEW format: field = 6F10.0 (units=millions) up to nine decimal

places may be carried

H4 NEW—partial cut-harvest request—same format as H3

A5* treatment labels—eliminated

H6 Ml labels—same

A7* site labels—eliminated; earlier versions of ATLAS recognized an H7 card, this too has

been eliminated (though an error will not occur if H7 cards are included).

H8 species labels—same

Example HARVEST file:

** ATLAS Standalone - SE FM OP HIGH

01 ATLAS - Test Run

02 1980

** DUMP IFDUMP LSDUMP

03 0 0 0

SE FM OP HIGH

SUMREP

1

HUREP

2

MUREP

2

04 HU Reports

05 MU Reports

**

**SEFMOPHIGH

H032

H132

H232

H332 3 0

H332 3 6

H632 1

H632 2

H632 3

H632 4

H632 5

H832 3

1980 2010 2035

1980 2010 2035

SE Farmer Oak-Pine High Site

SE FM OP H 5

60431000

190.000 190.000

190.000 190.000

NON TREATED

NOT USED

IMP NO THIN

IMP THIN

IMPROVED INTEN

OAK-PINE

11

190.000

190.000

1

2.0

190.000

190.000

0.10

190.000

190.000

1.30

190.000

190.000

ATLAS Program ATLAS replaces TRIM.

Input: BIGRAF

Output: ATLIST Projection results; replaces DETAIL. Acres and volumes are in millions

(rounded to nearest thousand at time of output).

ATHUR An HU report (if requested) of inventory, growth, harvest, and area

change by age class and Ml for selected periods.

74 Appendix F
Appendix G:

Examples of

Input and Output

Example 1

Input Files

ATMUR An MU report (if requested) of inventory, growth, harvest, and

area change by age class and Ml for selected periods.

ATACRE Periodic report of inventory, harvest, and regenerated acres for each

MU by Ml.

ATINV Softwood and hardwood projections of inventory, growth, and total

harvest.

ATLOG Record of warning and error messages by period.

CURRAF Binary file created and used by ATLAS.

This section provides two examples of ATLAS simulations. The input files are derived from a

larger set developed for the 1989 RPA Timber Assessment (Haynes 1990). The first example is relatively simple, and the second example shows several options; for example,

management intensity shifting, and multiple MUs and HUs. All input files are presented and

are followed by a card-by-card discussion of the input. The inputs are the actual files used to

generate the output files that follow. As used in this appendix, the word "record" describes a

single line of input, and "card type" describes a particular kind of input. Most card types

require the use of more than one record (such as inventory by age class or acres by period).

The term "data field" is used to describe the format position of many input values. Appendix

B shows the location of these data fields. All input files are 80 columns wide, and all output

files are up to 132 columns wide; the output files are presented in condensed print.

Comments are inserted into the input files by beginning the line with double asterisks (**).

The programs ignore the contents of all records with an asterisk (*) in columns one and two.

This makes it possible to add pertinent notes, activate and deactivate records, to turn

options on and off, and save original records when modifications are made.

As shown in figure 9, the first example is a simple one-to-one configuration (one-IU to oneMU to one-HU). The inventory is the oak-pine forest type in the forest industry ownership in

the Northeastern United States. Inventory is projected within a single Ml.

Inventory unit—The following is the inventory unit file for example 1:

** EXAMPLE #1 Inventory Unit File

** CT=Card Type, MI=Management Intensity, AC=Age Class

** 10-Year Age Classes AC 0 = Age 0-9, AC 1 = Age 10-19, Etc.

**

**ID*CTMI

13040

13040

13040

13040

13040

13040

13040

13040

3 1

3 1

3 1

3 1

3 1

3 1

3 1

3 1

AC

1

2

3

4

5

6

7

8

ACRES

15425

4001

12953

26066

20787

18579

7649

6058

VOL/ACRE

1171.0

1543.0

1457.5

1761.5

2107.5

2383.3

1282.0

1478.0

Appendix Q 75
(

MI-1

Aggregate

:onditions

Average

stocking

Management

unit 1

Forest industry

Oak-pine

All sites

Harvest

unit 1

Northeast

Forest industry

Softwoods

Figure 9—The linkages

between the example 1

input files.

This IU has no nonstocked acres, and only card type 03 is present. One stocking level is

represented so that all acres and volume are in data fields 1 and 2. The volume-per-acre

column (data field 2) is carried to one decimal point. This is an option for all acre and

volume inputs. Age classes are 10 years (0 = age 0-9, 1 = age 10-19, 2 = age 20-29,...,

17 = age 170+).

Management unit—The following is the management unit file for example 1:

** EXAMPLE 1-Management Unit File

** Northeastern /

13040000 00

13040000 1

13040000 2

13040000 8

13040000 11

13040000 11

13040000 12

13040000 23

13040000 301

13040000 32 1

13040000 32 1

13040000 32 1

13040000 331

13040000 331

13040000 331

13040000 361

13040000 371

13040000 381

13040000 381

13040000 38 1

Forest

NE-F

0

0

0

6

12

0

6

12

0

6

12

Industry Ownership / Oak-pine Type / All Sites

I OAK-PINE

13040

4

0.128

0.112

0.500

0.8858

7.4

12.8

13.7

0

2668

4222

0.4617

1.1904

0.0000

0.0920

0.0920

4

0.116

0.250

0.00

17

8.1

13.6

13.7

522

3004

4373

0.0000

0.0920

0.0920

0.118

0.125

0.00

17

7.8

13.7

13.7

1013

3309

4493

0.0000

0.0920

0.0920

0.122

0.065

1.00

1

9.7

12.0

13.7

1473

3584

4581

0.0000

0.0920

0.0000

0.125

0.060

0.00

0.162

11.1

13.7

13.7

1902

3828

4639

0.0800

0.0920

0.0000

0.000

0.00

0.890

12.8

13.7

13.7

2300

4040

4667

0.0920

0.0920

0.0000

Because one Ml is used, this MU) is rather simple. But this example originated as part of a

larger study, so the MU includes card types in addition to the minimal inputs required for a

simulation. (The only MU cards actually required are 01, 02, and 33.) The format used for

most card types is that of the 10-column data field. There are six data fields—columns 21

though 80 (see appendix B). Many data variables are entered by period or age class, and for

these variables, time or age increases from one data field to the next from left to right.

Card types 11, 36, and 37 are examples of the user-default input format. This input format is

designed for card types that carry values by period or age class (for example, acres by

period or yield table volume by age class). Within the program code, these variables are

dimensioned by the number of age classes specified by the program PARAMETER statement (the default is 18 age classes and 18 periods; at six values per line, three lines of input

are required). One value can be entered on the user default record (acres, volume, a proportion, and so forth); if the card type does not contain an entry for all (18) possible array

values, the program will fill in the missing numbers with the user default value. This means

that for cases when a card type contains a constant value, the constant can be specified in

user default format rather than be repeated several times. The user default value will supply

only values that are left as blanks on the input record or fill in when the record is omitted.

The user default will not supply a value for zeros entered on a record.

76 Appendix Q
Card type 00—This is the MU) name. The label is printed in output files as part of the MU

identifier. The use of pronounceable names or abbreviations will speed identification of

MUs.

Card type 01—This entry is for the IU identity record. The identifier is used by HUSCAN

to link the inventory unit(s) to the appropriate management unit. If more than one IU is

assigned to the MU, card 01 can either be duplicated the appropriate number of times (up

to 10) or have data fields 2 through 6 filled in as needed.

Card type 02—This card type contains the numerical identifier for the species label found

in the HARVEST file on card type H8 (this entry is in data field 2). In this case, the label

OAK/PINE will be used on various output files.

Card type 08—The minimum harvest age class is 4 (the 40-49 year age class). The minimum harvest age class is entered by Ml; data fields 1 though 5 are associated with Mis

1 though 5.

Card type 11—This card type is used when the total area within the MU will increase or

decrease (it is optional). The entries are acres (in millions) by period. The first card type 11

shown here is in the user-default format. This means that 128 thousand acres will be used

for all periods where no entry is specified (period 5 and beyond). The second card type 11

begins with an entry of 112 thousand acres for period 0. This will be the number of acres

found in the MU at the end of the first period of simulation (or beginning of the second

period of simulation). If this number is larger or smaller than the total acres in the IU file (it

is larger), then area gain or area loss will take place over the period. It can be seen that

acres are increasing each period.

Card type 12—This record also is optional; its purpose is to proportion area gain across

specific age classes. It is useful only when acres are added to an MU via card type 11. As

shown here, 50 percent of the total acreage increase will occur in age class 0, 25 percent

in age class 1, and so forth. The sum of all proportions entered on card type 12 must equal

1.00. When area gain occurs and card type 12 is omitted, all new acres are placed in age

class 0. The volume per acre assigned to incoming acres is the product of the average

stocking proportion (card type 23) and the yield-table value (card type 33). All incoming

acres are initially placed in MI-1; however, if Ml shifting is taking place, the acres may be

reassigned to a different Ml.

Card type 23—This card type also is optional but its use is recommended. It is associated

only with MI-1. The record has two parts: entered in data fields 1 through 3 are the average

stocking proportions for stocking levels 1 though 3, and entered in data fields 4 through 6

are the proportions that distribute regenerated acres among stocking levels 1 through 3.

The average stocking proportion is used in three cases: (1) initial stocking ratio assigned to

regenerated acres; (2) the stocking ratio assigned to area gain (acres entering MU via card

types 11 and 12); and (3) in the case of commercial thinning (not shown here), the thinning

volume harvested is the product of the average stocking proportion and the removal

specified on card type 34 (see example 2 MUs, below).

As shown here, card type 23 will assign an initial stocking proportion of 0.8858 to acres

regenerated in stocking level 1 and to all acres entering the MU via area gain. One hundred

percent (1.00) of the regenerated acres will be assigned to stocking level 1. If no card type

23 is present, the average stocking proportion defaults to 1.00 and all acres are assigned

Appendix G 77
stocking level 1. The associated card type 24 is used to set the lower stocking thresholds

for stocking levels 1 and 2 and to assign an average stocking proportion to MIs 2 through 5

(see example 2).

Card type 30—This record contains the input coefficients to the relative-density-change

equation (formally called the approach-to-normal equation). As used here, 17 is entered for

both FULLDC and HALFDC, which means the full rate of adjustment will take place in all

age classes. The 1 in data field 4 specifies the linear form of the equation with an intercept

of 0.162 and a slope of 0.89. If card type 30 is omitted, no stocking adjustment takes place.

Regenerated acres may have a second set of relative density change coefficients. Example 2 makes use of this option.

Card type 32—This record allows for entry of the average stand diameter associated with

each age class. The entry shown here is in inches. Stand diameter is not explicitly modeled, and diameter is not used in any modeling decision. These values are used to calculate the average reported inventory and harvest tree diameters. The value of 1 entered in

column 14 indicates this set of records is for MI-1. The values in columns 18 and 19 (0, 6,

and 12) are the age classes associated with the value in the adjacent data field 1.

This is an example of where the user-default format could have been used (as in card type

11). The value 13.7 is repeated seven times. This value could have been assigned to a

user-default card; there still would be a total of three diameter records, but fewer numbers

would be entered.

Card type 33—The base yield-table volume per acre for MI-1 is entered by age class. In

both examples 1 and 2, the base yield tables represent net cubic feet of growing stock per

acre. There is no default for this entry. This yield table was derived from inventory plot data

collected in stands classified as the oak-pine forest type in the Northeastern United States.

This yield table will act as a volume trajectory guide curve for oak-pine stands in forest

industry ownership. The concept of a guide curve is appropriate because the initial inventory is not on the yield table and regenerated acres (and area gain) will start with a stocking

proportion of 89 percent of yield-table volume. The coefficients on card type 30 were

derived from the growth and volume data collected from plots on forest industry-owned

lands. It is the combination of card types 33, 30, and 23 that allows for calibration of the

growth and yield projection.

Card type 36—This card type allows for the representation of both hardwood and softwood volume components in the timber inventory. The reports produced by the ATLAS

model categorize inventory, growth, and harvest volumes by these two fiber types. The

user enters the proportion of inventory volume that is softwood. The assumption is that the

base yield table represents both a softwood and hardwood component (in this case, the

base yield table was developed from inventories with both components).

Shown in example 1, in the user-default format, is 46.17 percent. This means the majority

of the volume represented as inventory, harvest, and growth is in hardwood. As entered

here, the single value will apply to all age classes; often the proportion is set to differ with

age class. If the initial beginning inventory consists of both softwood and hardwood volume

(in the same inventory unit), the softwood proportion should be derived from that data. If

the initial inventory (within IUs) is split between both fiber types and it is desirable for the

starting year of the ATLAS output report to match this total, then the proportion(s) should

78 Appendix G
be derived from that initial inventory data. In the case here, the average is weighted to

represent all age classes.

Card type 37—This record contains the growth-on-harvest multiplier. The multiplier can

be entered by age class, but this is another case showing the user default-format. When

ATLAS begins the harvest allocation process, this value will be multiplied by the volume

available for harvest within this MU. This is a growth-inflation factor of roughly 19 percent.

This is another input derived from the growth information on inventory plot records. It

represents an annual net growth percentage (growth volume as a percentage of inventory

volume) of about 3.8 percent taken times 5 years (it is 5 years from the beginning of the

period to the middle of the period).

Card type 38—This record is the harvest proportion card type. The harvest assigned to

this MU will be proportioned among age classes as specified by the entered ratios (that is,

9.2 percent of the total harvest assigned to this MU will be taken from each age class of

age classes 5 though 14). This distributes harvest over a range of conditions. Should the

percentage of harvest not be available within an age class, the algorithm will then collect

the required remainder from the oldest age class with volume. In example 1, the inventory

unit has no volume beyond age class 8, which means that in addition to the 9.2 percent of

the MU harvest, age class 8 will be assigned another 55.2 percent of the harvest (9.2 times

six age classes with no volume). Should all the volume in age class 8 be harvested and the

assigned harvest not yet be met, then the remainder will come from the next youngest age

class (and so on down to the minimum harvest age class, which is 4—see card type 8). If

card type 38 is omitted, then all harvest assigned to the MU is distributed on the oldest first

principle. (For information on harvest of area loss, commercial thinning harvest, and partial

cutting, see the section "Harvesting Methods" in the text.)

The PC version of ATLAS may have problems related to rounding when card 38 values

sum exactly to 1.0000. When the harvest gets close to taking all available volume, the

ATLAS program may abort and list a harvest summation error message in the file ATLOG.

A simple remedy, if that were the case here (and a good rule to follow), is to change 0.0800

to 0.07999, now card 38 sums to a value slightly less than one.

Harvest unit—The following is the harvest unit file for example 1:

** EXAMPLE 1-Harvest Unit File

** ATLAS example run for from 1989 RPA Timber Assessment

01 PC-ATLAS NE EXAMPLE RUN #1 - Base Run 8-Extended Harvest. t

02 1980

** DUMP IFDUMP LSDUMP SUMREP HUREP MUREP

03 0 0 0 1 0 1

04 HU Reports

05 MU Reports 1980 1990 2030

H001 Northeast Region - Forest Industry Softwoods (Oak/Pine Demo)

H101 Example #1 10 5 2.00 0.10 1.30

H201 13040000

H301 3 0 53 924 60.613 40.667 50.910 49.471 71.378

H601 1 REGEN/NO THIN

H601 2 NOT USED

H601 3 NOT USED '

H601 4 NOT USED

H601 5 NOT USED

H801 4 OAK/PINE 1

Appendix G 79
The harvest file contains two sets of information. First is the input that controls the ATLAS

projection and allows for the selection of ATLAS reports. These are the input card types

01 through 07. The second set of information pertains to the HU and the linkage to MUs.

Harvest unit parameters are entered on card types HO through H8 (two additional digits

identify the HU; legal values range from 01 to 32). The example here is a single HU. The

HARVEST file contains relatively fewer defaults for omitted card types than does the file

MANAGE. Other than card types 04 and 05, all entries are required input. In example 2,

additional HUs are added by repeating entries for card types HO through H8.

Card type 01—The first entry is for a heading that will be written at the top of all pages in

the reports. It can be used to identify the simulation.

Card type 02—On this record, enter the starting year of the simulation. This represents

the first year in the first period of the simulation. (In this case, 1980 was the average date

of survey associated with the IU inventory.)

Card type 03—This card type allows for the selection of an assortment of output reports.

A comment card was inserted above in the data fields that correspond to the report. The

first three entries control the diagnostic reports (also called dump reports). Diagnostic

output is a listing produced at the end of various subroutines; it includes the contents of

several basic variables. The output is a valuable debugging tool for programmers, but the

typical user would not want diagnostic output.

The entries in data fields 4 through 6 choose reports at three levels of detail. In order, the

report ATLIST is most general, ATHUR is a period-by-period report at the HU level of

aggregation, and ATMUR is a period-by-period report of each MU. The ATLIST report is

for all projection periods; the user chooses the periods to be reported in ATHUR and

ATMUR. Options allow two levels of detail for both the HU and MU reports. Entering the

value 1 will produce a summary report of all inventory, growth, and area change for each

period. Entering the value 2 will produce the same periodic HU and MU summary, and it

also will break this information down to the Ml level. This is the most disaggregate report

possible. Chosen here was the aggregate ATLIST report and the report ATMUR at the Ml

total level (there is just one Ml, so entering a 2 will not produce any additional information).

With only one MU linked to the HU, both the HU and MU reports will contain identical

information.

Card type 04—This card type allows the selection of periods to be reported in the HU

report (ATHUR). The format of this card type does not follow the data field convention. Up

to 12 calendar years are entered and are separated by a single space. The reports produced are periodic; the year entered should reflect the first year of the period. Because the

HU report was not selected (on card 03), any entry here will be ignored.

Card type 05—This card type allows the selection of periods to be reported in the MU

report (ATMUR). The format is the same as that explained above for card type 04. Chosen

here was a report for three periods. The last period of the simulation will be from the

beginning of 2030 to the end of 2039. Because this is the last period, the entry 2030 will

produce the regular periodic report, and the end of the simulation inventory will be reported

for 2040 (the beginning of what would be the next logical period). See the output file. (If the

periods were 5 years, a request of 2035 also would result in an inventory report for the

beginning of 2040.)

80 Appendix Q
Card type HO—The HO card type marks the beginning of the HU. This record is for the

entry of a title for the HU. This title will identify the HU on output reports.

Card type H1—This is a multipurpose record. Entered in the first data field is another HU

name that will be output in reports. Entered in the second data field is length, in years, of

projection periods and age classes.

In the third data field, is the number of the last period in the simulation. This entry can be

confusing because the first period of a simulation is formally called period zero. For this

example, time equals zero in 1980 and the time between 1980 and 1989 will be called the

zero period. The entry of 5 means the model will make a simulation for six time periods

(0 through 5).

The last three data fields are related to the stocking density when calculated for the beginning MU-IU inventory. As previously mentioned, one role of the program HUSCAN is to link

the IUs and MUs. During the linkage, HUSCAN calculates the stocking proportion (at the

MU level) for each inventory cell. Data field four is for the entry of an upper stocking limit. If

a cell stocking proportion exceeds this value (200 percent used here), volume above this

limit will be removed and placed in the next older age class. This process starts at the

youngest age class and moves to the oldest. If the addition of volume pushes stocking over

the limit, volume is again moved up one age class.

There is a reason for the limit. The base yield table often has low values for young age

classes, and very young timber stands will contain residual volume from previous stands.

High stocking proportions can lead to unrealistic growth. As an example, assume a yieldtable value of 200 for age class 0 and a young timber stand with 800 cubic feet per acre of

residual volume. The stand would begin the simulation with 400 percent stocking. The

problem comes when this stand is projected. Even with the application of the relativedensity-change equation, it is likely that 40 years later the stocking would be about 300

percent. If the base yield table had a volume of 3,500 cubic feet at age 45, this would put

the stand that started with residual trees at about 10,000 cubic feet. Reasonable? Not

likely. All stocking proportions are reported for all beginning inventory cells in the file called

LIST.HU produced by HUSCAN (file = HULIST on mainframes). To prevent this potential

stocking problem, check LIST.HU, but even so, it is always a good idea to have an arbitrary upper stocking limit.

The final two entries define the expected range for all initial stocking proportions. Any

stocking proportion to fall outside this range will be flagged in the LIST.HU file. This is just

a warning device that makes the spotting of probable outliers easier.

Card type H2—The listing of the MU(s) to be linked to the HU. The MU identifying

number(s) are input in data field format (up to six per record). Up to 65 MUs may be linked

to one HU. Harvest will be allocated among the MUs by the relative available harvest

volume in each MU (for example, a MU with 20 percent of the total available volume would

be allocated 20 percent of the harvest volume).

Card type H3—The periodic harvest is entered in data field format. The units are million

cubic feet. The entry of 3 in column 7 means both softwood and hardwood fiber types will

count towards harvest. The entry of 0 in column 11 associates the first harvest value with

period 0.

Appendix G 81
Example 1

Output Files

Card type H6—This card type allows for the entry of Ml names to be used as labels on

output. The use of these labels implies that MIs are coordinated across the member MUs

(for example, if MI-2 is commercial thinning, then for all MUs linked to that HU, commercial

thinning should take place in all uses of MI-2). Five records are required for this card type

regardless of the number of MIs actually used. As shown here, NOT USED was filled in for

the Mis having no entries.

Card type H8—This is the forest type associated with MU card type 02. The entry here will

be printed on reports at the MU level. Up to nine forest type records can be entered (unlike

card type H6, not all nine cards need be present). The value 1 is entered in data field 3. It

means the softwood fiber type associated with the harvest of this forest type. An entry of 2

would associate the MU with the hardwood fiber type.

A note about harvest—The harvest fiber type selected is both hardwood and softwood

(3 = combined). Were either softwood or hardwood selected, acres would be harvested

until the specified harvest volume is satisfied by the selected fiber type. When an acre is

harvested, volume from both fiber types is removed. The number of acres harvested

depends on the volume per acre and the percentage of that volume in the requested fiber

type (a function of MU card type 36). Harvested volume of the nonselected fiber type is

referred to as come-along volume; it is not explicitly used to satisfy a harvest request.

As an example of how this works, assume a harvest request is selected for 100 units and

flagged (on card type H3) as a softwood fiber request. Also assume that the inventory

volume available for harvest is 1000 units, of which 800 units are softwood and 200 units

are hardwood (this means that based on MU card type 36, the average softwood proportion on each acre will be 80 percent). To meet the requested 100 units of softwood,

20 percent of the total volume harvested will be hardwood. The total volume removed from

the inventory will be 125 units, 25 of which will be hardwood. The 25 units of hardwood

harvest is what we call come-along volume; the model reports this removal, but it is not

explicitly used to meet demand. If the 100 units of harvest had been flagged as the combined fiber type, then harvest would consist of 80 units of softwood and 20 units of hardwood. A 100-unit hardwood fiber request will produce 100 units of hardwood and 500 units

of softwood come-along volume.

In the RPA simulations, softwood types are aggregated into softwood HUs and receive a

softwood harvest request; hardwood MUs are treated accordingly. The assumption is made

that a portion of the come-along volume will be used, therefore, both the softwood and

hardwood harvest requested need to be reduced to eliminate excess harvesting. In the

TAMM90/ATLAS model, the card type 07 includes softwood and hardwood proportions that

adjust the TAMM requested harvest for the come-along percentage. In the stand-alone and

PC versions of ATLAS, this might be accomplished by running calibration simulations and

making adjustments by hand (or by some automated process).

The complete set of the outputs from the inputs shown in example 1 is included. The simulation was done with PC-ATLAS, and the outputs from the SCANNER programs reflect PC

file names.

The SCANNER outputs are LIST.IU, LIST.MU, LIST.HU, and TREE. Each file includes a

reproduction of the input file and then a reorganization of the input into a table. Any errors

encountered in reading and checking the data are reported.

82 Appendix G
The file LIST.MU shows how the program interprets the input data in MANAGE. In this case,

the file has many tables that either are not filled in or are filled in with default values. This

reflects the rather simple nature of example 1. To see how additional information is reported,

complete the simulation in example 2 (or run MUSCAN on any MANAGE input file) and print

the file LlST.MU. A disadvantage of the large detailed listing such as LIST.MU is that when 50

or more MUs are processed, this file can become larger than a megabyte in size. This large

size becomes a real disadvantage when the file is to be printed, but more often it is a disadvantage when it must be viewed in an editor to find errors reported by MUSCAN. For most

errors this can be avoided by paying attention to the screen output during the execution of

MUSCAN. If an error is found in MANAGE, the MU number comes to the screen; for many

errors, the MU card type with the error is also reported to the screen. If one is a little familiar

with the correct input format, it might take only a look at the suspected card to determine the

problem (incorrect format, incorrect MU number, and card type out of order are common). As

a last resort, look up the MU with errors in LIST.MU; at the bottom of each MU report, error

messages are listed in detail.

It is important to note the LIST.HU file. It includes tables showing the initial stocking relation

(at the "cell" level) between inventory and yield-table volumes. This is an excellent place to

spot potential inventory volume outliers (for example, a stand in age class 1 with 400 percent

stocking). This is helpful if either the HARVEST variable DCLIM or the inventory volume needs

to be adjusted. This is the inventory that will begin the ATLAS simulation.

There are three cases when stocking is assigned to acres. First, and most frequently, stocking

is assigned to regenerated acres based on the ratios on MU cards 23 and 24. The average

stocking proportion is adjusted by the relative density change parameters on MU card 30.

But the adjustment occurs only if the yield-table value for the subsequent age class has been

assigned a volume (that is, if the yield-table values in age class 0 and age class 1 are both 0,

then the first stocking adjustment will not take place until the acres enter age class 2). Second,

stocking is assigned to acres any time they are in an age class that has a zero volume on the

corresponding yield table. Regardless of the age class, or any volume on the inventory acres,

the regeneration stocking ratio is assigned in all cases of a zero yield-table entry. Inventory

volume in the subsequent period (and subsequent age class) is determined by the assigned

stocking value, the approach-to-normal adjustment, and the yield-table volume. Any initial

inventory volume is used in the calculation of growth, the growth may be negative if the initial

volume was larger than the value calculated for the subsequent age class. This often occurs

for zero-aged plots that have residual plot volumes larger than the yield table values in age

class 1. Third, stocking is assigned when the yield table has volume and the inventory does

not. This might be a rather peculiar case where acres (in an age class other than zero) have

no volume. In this case, the value 1.00 (100 percent) is assigned to the acres. In the first

period of growth, any stocking adjustments are made and volume is assigned from the yield

table. All assigned volume will be counted as growth.

The next five files are from ATLAS (ATLOG, ATLIST, ATMUR, ATACRE, and ATINV). The

format of these files is described in more detail in appendix C. The file ATLIST is an all-period

summary accounting for inventory, growth, harvest, and area change within a harvest unit.

The file ATHUR accounts for inventory by age class for the selected periods. The file ATACRE

is an acreage report, it has a redundant table because there was only one Ml (the summary of

all MIs equals the MI-by-MI report). The files ATINV and ATLOG usually are not printed. The

file ATINV is formatted for possible use as an input to a customized program. The period-byperiod summary in file ATLOG is another place to look for error messages when the ATLAS

program sends an error message to the screen (check it for warning messages).

Appendix G 83
P C - I U S C A N 11/28/1990 16:10:49 PAGE 1

RECORD **IU*CT*M*AC****************D1********D2********D3********D4********D5********D6

1 ** EXAMPLE #1 Inventory Unit File

2 ** CT=Card Type, MI=Management Intensity, AC=Age Class

3 ** 10-Year Age Classes AC 0 = Age 0-9, AC 1 = Age 10-19, Etc.

4 * •

5 **ID*CTMI AC ACRES VOL/ACRE

6 13040 1 1 0

7 13040 3 1 1 15425 1171.0

8 13040 3 1 2 4001 1543.0

9 13040 3 1 3 12953 1457.5

10 13040 3 1 4 26066 1761.5

11 13040 3 1 5 20787 2107.5

12 13040 3 1 6 18579 2383.3

13 13040 3 1 7 7649 1282.0

14 13040 3 1 8 6058 1478.0

0 14 RECORDS READ FOR IU 13040

5 COMMENT RECORDS (NOT PROCESSED)

9 ACTIVE RECORDS

INFORMATION PAST COLUMN 80 IS NOT PROCESSED.

Example 1. Flle-LIST.IU

84 Appendix G
AC

P C - I U S C A N 11/28/1990 1 6 : 1 0 : 4 9 PAGE 2

IU 13040 RAF LOCATION 2 CONTAINS NO ERRORS

UNSTOCKED

ACRES

0.

MI 1

TOTAL

MANAGED

ACRES

111518.

TOTAL

TOTAL

MANAGED

VOLUME

195878.

CROSS

CHECK

ACRES

111518

MI 2 SL 1

ACRES CF/A MCF ACRES CF/A MCF

1

2

3

4

5

6

7

8

15425.

4001.

12953.

26066.

20787.

18579.

7649.

6058.

1171.

1543.

1458.

1762.

2108.

2383.

1282.

1478.

18062.7

6173.5

18879.0

45915.3

43808.6

44279.3

9806.0

8953.7

TOTAL 111518. 195878.1

Example 1. File-LIST.IU

Appendix G 85
P C - I U S C A N 11/28/1990 16:10:49 PAGE

1 IUs RAF L o c a t i o n F i r s t Last

0 IUs with errors IU Data 2 2

0 Duplicate IUs IU L i s t 3 3

IU REC E IU REC E IU REC E IU REC E

13040 2

Inventory Unit Scan Complete 14 Records read

No errors found

Example 1. File-LIST.IU

86 Appendix G

3
PC-MU SCAN 11/28/1990 16:10:51 PAGE 1

RECORD ****MU****CT* F*T*AP*********D1********O2********D3********D4********D5********D

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

** EXAMPLE 1--Management Unit File

** N o r t h e a s t e r n / F o r e s t I n d u s t r y Ownership/Oak-pine T y p e / A l l S i t e s

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

13040000

22 RECORDS READ

00

1

2

8

11

11

12

23

30

32

32

32

33

33

33

36

37 1

38 1

38 1

38 1

FOR MU

NE-FI OAK-PINE

13040

4

0.128

0.112

0.500

0.8858

0

6

12

0

6

12

0

6

12

13040000

7.4

12.8

13.7

0

2668

4222

0.4617

1.1904

0.0000

0.0920

0.0920

.116

.250

0.00

17

8.1

13.6

13.7

522

3004

4373

0.0000

0.0920

0.0920

0.118

0.125

0.00

17

7.8

13.7

13.7

1013

3309

4493

0.0000

0.0920

0.0920

0.122

0.065

1.00

1

9.7

12.0

13.7

1473

3584

4581

0.0000

0.0920

0.0000

0.125

0.060

0.00

0.162

11.2

13.7

13.7

1902

3828

4639

0.0800

0.0920

0.0000

0.128

0.000

0.00

0.890

12.8

13.7

13.7

2300

4040

4667

0.0920

0.0920

0.0000

2 COMMENT RECORDS

20 ACTIVE RECORDS

(NOT PROCESSED)

INFORMATION PAST COLUMN 80 IS NOT PROCESSED.

DEFAULT

DEFAULT

DEFAULT

DEFAULT

DEFAULT

DEFAULT

DEFAULT

DEFAULT

DEFAULT

DEFAULT

DEFAULT

DEFAULT

DEFAULT

VALUES

VALUES

VALUES

VALUES

VALUES

VALUES

VALUES

VALUES

VALUES

VALUES

VALUES

VALUES

VALUES

WILL

WILL

WILL

WILL

WILL

WILL

WILL

WILL

WILL

WILL

WILL

WILL

WILL

BE USED

BE USED

BE USED

BE USED

BE USED

BE USED

BE USED

BE USED

BE USED

BE USED

BE USED

BE USED

BE USED

FOR CARD

FOR CARD

FOR CARD

FOR CARD

FOR CARD

FOR CARD

FOR CARD

FOR CARD

FOR CARD

FOR CARD

FOR CARD

FOR CARD

FOR CARD

TYPE 3

TYPE 7

TYPE 13

TYPE 14

TYPE 21

TYPE 22

TYPE 24

TYPE 28

TYPE 29

TYPE 34

TYPE 39

TYPE 40

TYPE 41

Example 1. File-LIST.MU

Appendix G 87

0

4
P C - M U S C A N 11/28/1990 16:10:51

MU NUMBER "13040000 " NE-FI OAK-PINE

PAGE

CARD TYPE

CARD TYPE

CARD TYPE

CARD TYPE

01 IUS BELONGING TO MU 13040

02 FOREST TYPE (SPECIES) 4

03 HARVEST SELECTION 1 FINAL HARVEST

DIAGNOSTIC OUTPUT 0 NO FIRST PERIOD 0 LAST PERIOD 0

07 AGE CLASS LIMITS

FOR MI SHIFTING

TO MI

1 2 3 4 5

FROM MI 1 * 0 0 0 0

2 0 * 0 0 0

3 0 0 * 0 0

4 0 0 0 * 0

5 0 0 0 0 *

08 MINIMUM HARVEST

AGE CLASS

MI

1

2

3

4

5

AREA PROJECTIONS, ENTERING AND EXITING PROPORTIONS,

AND PARTIAL CUTTING TARGET AND MINIMA

CARD TYPE

PD/AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

CARD TYPE

11

AREA

.112

.116

.118

.122

.125

.128

.128

.128

.128

.128

.128

.128

.128

.128

.128

.128

.128

.128

14 MI

12

ENTER

PROP

.5000

.2500

.1250

.0650

.0600

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

LOWER

AC

0

0

0

0

0

0

0

0

0

0

13

UPPER

AC

0

0

0

0

0

0

0

0

0

0

OF ENTERING ACRES 1

EXIT

PROP

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

40

PC

AGE

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

41

PC

MIN

.000

Example 1. File-LIST.MU

88 Appendix G
P C - M U S C A N

MU NUMBER "13040000

CARD TYPE 21 PROPORTION

UNSTOCKED

RESTOCKED

PD

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

11/28/1990 16:10:51 11 NE-FI OAK-PINE

OF

ACRES

000

000

000

000

000

000

,000

,000

.000

,000

,000

,000

.000

.000

.000

.000

.000

.000

PAGE

CARD TYPE 23 MI 1 AVE. STOCKING

PROPORTION

LEVEL

1

2

3

.886

.000

.000

CARD TYPE 23 DISTRIBUTION OF HI 1

REGENERATION TO ENTER

LEVEL

22 PROPORTION OF

CUTOVER ACRES

REMAINING UNSTOCKED

PD

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

i 17

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

24 MINIMUM STOCKING TO

ENTER LEVEL

LEVEL

1

2

.000

.000

24 HI 2 - 5 AVERAGE

STOCKING PROPORTION

LEVEL

1

2

3

1.000

.000

.000

MI

2

3

4

5

1.000

1.000

1.000

1.000

Example 1. File-LIST.MU

Appendix G 89
P C - M U S C A N 1 1 / 2 8 / 1 9 9 0 1 6 : 1 0 : 5 1 PAGE 4

MU NUMBER "13040000 " NE-FI OAK-PINE

CARD TYPE 28 PROPORTIONS TO SHIFT AMONG MIS

FROM M I 1 1 1 1 2 2 2 2 3 3 3 3

T O M I 2 3 4 5 1 3 4 5 1 2 4 5

PD

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

CARD TYPE 28 PROPORTIONS TO SHIFT AMONG MIS 29 RECOVERY PROPORTIONS

FROM M I 4 4 4 4 5 5 5 5

TO MI 1 2 3 5 1 2 3 4

PD

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

PD

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

PD

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

Example 1. File-LIST.MU

90 Appendix G
P C - M U S C A N

MU NUMBER "13040000 11/28/1990 16:10:51

" NE-FI OAK-PINE

TYPE 30 RELATIVE DENSITY CHANGE EQUATION

AGE CLASS

FULL ADJUSTMENT 0 TO 17

HALF ADJUSTMENT 18 TO 17

PROPORTION OF STANDARD VOLUME

CURRENT

.3000

.4000

.5000

.6000

.7000

.8000

.9000

1.0000

AFTER GROWTH

HALF FULL

.3645 .4290

.4590 .5180

.5535 .6070

.6480 .6960

.7425 .7850

.8370 .8740

.9315 .9630

1.0260 1.0520

PAGE

FORM OF EQN:

EQUATIONS

COEFFICIENT 1

COEFFICIENT 2

0000

0000

0000

0000

0000

0000

0000

0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

5

1 REGEN

.16200

.89000

CURRENT

1.1000

1.2000

1.3000

1.4000

1.5000

1.6000

1.7000

1.8000

EQN PRESENT?

.00000

.00000

AFTER

HALF

1.1205

1.2150

1.3095

1.4040

1.4985

1.5930

1.6875

1.7820

0

GROWTH

FULL

1.1410

1.2300

1.3190

1.4080

1.4970

1.5860

1.6750

1.7640

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

.0000

DIAMETER, VOLUME PER ACRE, THINNING VOLUME PER ACRE, SOFTWOOD PROPORTION OF VOLUME,

AND GROWTH ON HARVEST

CARD TYPE

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

32

DIAM

IN.

7.4

8.1

7.8

9.7

11.2

12.8

12.8

13.6

13.7

12.0

13.7

13.7

13.7

13.7

13.7

13.7

13.7

13.7

33 34 36

MANAGEMENT INTENSITY 1

VOLUME/ '

ACRE

522.0

1013.0

1473.0

1902.0

2300.0

2668.0

3004.0

3309.0

3584.0

3828.0

4040.0

4222.0

4373.0

4493.0

4581.0

4639.0

4667.0

THIN VOL SOFTWD

/ACRE PROP

.462

.462

.462

.462

.462

.462

.462

.462

.462

.462

.462

.462

.462

.462

.462

.462

.462

.462

37

GROWTH ON

HARVEST

1.190

1.190

1.190

1.190

1.190

1.190

1.190

1.190

1.190

1.190

1.190

1.190

1.190

1.190

1.190

1.190

1.190

1.190

CARD TYPE

AC

3 2 33 34 36

MANAGEMENT INTENSITY 2

DIAM VOLUME/ THIN VOL SOFTWD

I N . ACRE /ACRE PROP

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

37

GROWTH ON

HARVEST

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

Example 1. File-LIST.MU

Appendix G 91
P C - H U SCAN

MU NUMBER "13040000

11/28/1990 16:10:51

" NE-FI OAK-PINE

PAGE

DIAMETER, VOLUME PER ACRE, THINNING VOLUME PER ACRE, SOFTWOOD PROPORTION OF VOLUME,

AND GROWTH ON HARVEST

CARD TYPE

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

32 33 34 36

MANAGEMENT INTENSITY 3

DIAM VOLUME/ THIN VOL SOFTUD

I N . ACRE /ACRE PROP

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

37

GROWTH ON

\

1

1

1

1

1

4

i

HARVEST

.000

.000

.000

1.000

1.000

.000

1.000

.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

CARD TYPE 32 33 34

MANAGEMENT INTENSITY

36

' 4

DIAM VOLUME/ THIN VOL SOFTWD

AC I N . ACRE /ACRE PROP

1

1

1

1

1

•

.000

.000

.000

.000

.000

.000

.000

.000

.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

37

GROWTH ON

HARVEST

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

DIAMETER, VOLUME PER ACRE, THINNING VOLUME PER ACRE, SOFTWOOD PROPORTION OF VOLUME,

GROWTH ON HARVEST, HARVEST PRIORITY, AND CONVERSION FACTOR

CARD TYPE

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

32 33 34 36

MANAGEMENT INTENSITY 5

DIAM VOLUME/ THIN VOL SOFTWD

I N . ACRE /ACRE PROP

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

37

GROWTH ON

HARVEST

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

CARD TYPE 38

HARVEST

PRIORITY

.080

.092

.092

.092

.092

.092

.092

.092

.092

.092

.092

39

CONVERSION

FACTOR

Example 1. File-LIST.MU

92 Appendix G

6
P C - N U S C A N 11/28/1990 16:10:51 PAGE 7

1 MUs RAF Location F i r s t Last

0 MUs with errors MU Data 2 2

0 Duplicate MUs MU L i s t 3 3

MU REC E MU REC E MU REC E MU REC E

13040000 2

Management Unit Scan Complete

22 Records Read

No errors found

Example 1. File-LIST.MU

Appendix G 93
P C - H U S C A N 11/28/1990 16:10:53 PAGE 1

RECORD CT**N*************** --*****- .*****.....*****.....***** *****..._.*****

1 ** EXAMPLE 1--Harvest Unit File

2 ** ATLAS example run for from 1989 RPA Tinter Assessment

3 01 PC-ATLAS NE EXAMPLE RUN #1 - Base Run 8-Extended Harvest.

4 02 1980

5 ** DUMP IFDUMP LSDUMP SUMREP HUREP MUREP

6 03 0 0 0 1 0 1

7 04 HU Reports

8 05 MU Reports 1980 1990 2030

) 8 RECORDS READ FOR GENERAL RUN INFORMATION

3 COMMENT RECORDS (NOT PROCESSED)

5 ACTIVE RECORDS

INFORMATION PAST COLUMN 80 IS NOT PROCESSED

DEFAULT VALUES USED FOR GENERAL CARD TYPE 06

Example 1. File-LIST.HU

94 Appendix G
P C - H U SCAN 11/28/1990 16:10:53 PAGE 2

HARVEST HEADER REPORT

CARD TYPE

01 RUN TITLE: PC-ATLAS NE EXAMPLE RUN #1 - Base Run 8-Extended Harvest.

02 STARTING YEAR OF SIMULATION 1980

03 DIAGNOSTIC OUTPUT OVERRIDE 0

FIRST AND LAST OUTPUT PERIODS 0 0

REPORT REQUESTS SUM, HU, MU 1 0 1

REPORT YEARS 1 2 3

04 HU 0 0 0

05 MU 1 9 8 0 1 9 9 0 2030

06 ALTERNATE VOLUME MEASURE LABEL: NO ALTER. UNIT

MINIMUM DIAMETER FOR CONVERSION TO OTHER VOLUME .00

07 INITIAL SOFTWOOD FRACTIONS OF HARVEST

REGIONS 1 2 3

IOF 1 .000 .000 .000

IOF 2 .000 .000 .000

IOF 3 .000 .000 * .000

IOF 4 .000 .000 .000

4

0

0

5

0

0

6

0

0

7

0

0

8

0

0

9

0

0

10

0

0

11

0

0

12

0

0

4

000

000

000

000

5

.000

.000

.000

.000

6

.000

.000

.000

.000

7

.000

.000

.000

.000

8

.000

.000

.000

.000

0 Error(s) in General Card Types 01 to 06

Example 1. File-LIST.HU

Appendix Q 95
P C - H U S C A N 11/28/1990 16:10:53 PAGE 3

RECORD CT*A**I*AOP*********- * * * * * . . . * * * * * . . *****.....*****.....*****.....*****

it Industry Softwoods (Oak/Pine Demo)

5 2.00 0.10 1.30

40.667 50.910 49.471 71.378

9

10

11

12

13

14

15

16

17

18

H001

H101

H201

H301

H601

H601

H601

H601

H601

H801

3 0

1

2

3

4

5

4

10 RECORDS READ FOR

0 COMMENT RECORDS

10 ACTIVE RECORDS

Northeast Region - F

Example #1 10

13040000

53.924 60.613

REGEN / NO THIN

NOT USED

NOT USED

NOT USED

NOT USED

OAK/PINE

HU NUMBER 01

(NOT PROCESSED)

-

INFORMATION PAST COLUMN 80 IS NOT PROCESSED

Example 1. File~LIST.HU

96 Appendix G

0

1
P C - H U S C A N 11/28/1990 16:10:53 PAGE 4

SIMULATION SETUP FOR PC-ATLAS NE EXAMPLE RUN #1 - Base Run 8-Extended Harvest.

HU 1 Northeast Region - Forest Industry Softwoods (Oak/Pine Demo)

CARD TYPE

H1 HU LABEL Example #1

PERIOD LENGTH IN YEARS 10

SIMULATION LENGTH IN PERIODS 5

MAXIMUM STOCKING PERMITTED 2.0000

EXPECTED STOCKING RANGE .1000 1.3000

H2 MUS WITHIN THIS HU

13040000

H3 COMBINED FINAL HARVEST REQUEST FOR THIS HU

H4

H6

PD

VOL

COMBINED

PD

VOL

MANAGEMENT

0 1

53.9 60.6

PARTIAL CUTTING REQUEST

0 1

INTENSIFICATION LABELS

MI

1

2

3

4

5

SPECIES LABEL AND REPORT GROUP

SPECIES

4

40.

FOR THIS HU

REPORT GROUP

SOFTWOOD

2

7

2

3

50.9

3

LABEL

REGEN / NO THIN

NOT USED

NOT USED

NOT USED

NOT USED

LABEL

OAK/PINE

4

49.5

4

5

71.4

5

H8

No e r r o r s in HU Card Types H1 to H8

Example 1. File-LIST.HU

Appendix G 97
MUWARNING

MI

1

1

SL

1

1

13040000-

FOR IU 13040

AC

1

2

Y TABLE

VOLUME

522.0

1013.0

- STOCKING

INVEN

VOLUME

1171.0

1543.0

RATIO IS OUTSIDE EXPECTED RANGE OF

STOCKING

2.2433

1.5232

.1000 TO 1.3000

Example 1. File-LIST.HU

98 Appendix G
P C - H U S C A N 11/28/1990 16:10:53 PAGE 5

INVENTORY REPORT FOR MU 13040000 NE-FI OAK-PINE

AC

1

2

3

4

5

6

7

8

TOTAL

AC

1

2

3

4

5

6

7

8

TOTAL

UNSTOCKED

ACRES

0.

MI

ACRES

15425.

4001.

12953.

26066.

20787.

18579.

7649.

6058.

111518.

MI

ACRES

15425.

4001.

12953.

26066.

20787.

18579.

7649.

6058.

111518.

TOTAL

HANAGED

ACRES

111518.

1 TOTAL

CF/A

1096.

1620.

1523.

1762.

2108.

2383.

1282.

1478.

1 SL

CF/A

1096.

1620.

1523.

1762.

2108.

2383.

1282.

1478.

MCF

16908.9

6482.2

19724.1

45915.3

43808.6

44279.3

9806.0

8953.7

195878.2

1

MCF

16908.9

6482.2

19724.1

45915.3

43808.6

44279.3

9806.0

8953.7

195878.2

TOTAL

MANAGED

VOLUME

195878.

ACRES

CROSS

CHECK

ACRES

111518.

MI 2

CF/A MCF

ACRES

HI 1 SL 2

CF/A

HI

MCF ACRES

1 SL 3

CF/A MCF

Example 1. File-LIST.HU

Appendix G 99
P C - H U S C A N 11/28/1990 16:10:53 PAGE 6

STOCKING RATIO REPORT FOR MU 13040000 NE-FI OAK-PINE

AC MI1 SL1 MI1 SL2 MI1 SL3 MI1 ALL MI2 MI3 MI4 MI5

ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

*+ 2.100

*+ 1.599

1.034

.926

.916

.893

.427

.447

*+ 2

*+ 1

1

.100

.599

.034

.926

.916

.893

.427

.447

WARNING 2 STOCKING RATIO(S) OUTSIDE USER

CHECK RANGE (HIGHER THAN 1.30 AND LOWER THAN .10)

CHECK INVENTORY AND YIELD TABLE VOLUME.

No e r r o r s found c o m b i n i n g IUs and MUs

No e r r o r s found.

Example 1. File-LIST.HU

100 Appendix G
ATLAS TREE FOR

PC-ATLAS NE EXAMPLE RUN #1 - Base Run 8-Extended Harvest.

11/28/1990 16:10:53

HARVEST UNIT Example #1 CONTAINS

MANAGEMENT UNIT NE-FI OAK-PINE

IU 13040 .000 UNS M AC 111.518 REG M AC 195.878100 VOL MMCF

TOTAL MU .000 UNS M AC 111.518 REG M AC 195.878200 VOL MMCF

TOTAL HU .000 UNS M AC 111.518 REG M AC 195.878200 VOL MMCF

Example 1.File-TREE

Appendix G 101
PC - A TL A S PC-ATLAS NE EXAMPLE RUN #1 - Base Run 8-Extended Harvest.

Run on 11/28/1990 at 16:10:57

Period 0

HU 1 Example #1 Reports 0 1

Northeast Region - Forest Industry Softwoods (Oak/Pine Demo)

Period 1

HU 1 Example #1 Reports 0 1

Northeast Region - Forest Industry Softwoods (Oak/Pine Demo)

Period 2

HU 1 Example #1 Reports 0 0

Northeast Region - Forest Industry Softwoods (Oak/Pine Demo)

Period 3

HU 1 Example #1 Reports 0 0

Northeast Region - Forest Industry Softwoods (Oak/Pine Demo)

Period 4

HU 1 Example #1 Reports 0 0

Northeast Region - Forest Industry Softwoods (Oak/Pine Demo)

Period 5

HU 1 Example #1 Reports 0 1

Northeast Region - Forest Industry Softwoods (Oak/Pine Demo)

Normal exit from PC-ATLAS

Example 1. Flle-ATLOG

102 Appendix G
Pd

0

1

2

3

4

5

6

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

P C

Run

- A T L A S PC-ATLAS NE

on 11/28/1990 16:

Harvest U n i t 1

Year

1980

1990

2000

2010

2020

2030

2040

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

10:57

EXAMPLE RUN #1 - Base Run 8-Extended Harvest.

Using RAF;

 from 11/28/1990 16:

Example #1 Northeast Region - Forest

I n v e n t o r y a t s t a r t o f p e r i o d . Area

Acres

0.112

0.112

0.116

0.118

0.122

0.125

0.128

SW Inv

90.437

86.534

86.064

95.548

101.562

109.096

108.087

T h i n n i n g and f

Acres

0.000

0.000

0.000

0.000

0.000

0.000

SW T h i n

0.000

0.000

0.000

0.000

0.000

0.000

HW Inv

105.441

100.891

100.342

111.400

118.412

127.197

126.019

Com Inv

195.878

187.424

186.406

206.948

219.974

236.293

234.106

: i n a l Harvest.

HW T h i n

0.000

0.000

0.000

0.000

0.000

0.000

Com T h i n

0.000

0.000

0.000

0.000

0.000

0.000

P a r t i a l C u t t i n g and T o t a l Harvest.

Acres

0.000

0.000

0.000

0.000

0.000

0.000

SW PC

0.000

0.000

0.000

0.000

0.000

0.000

Growth, Area

SW Gro

20.928

26.968

27.987

28.972

29.965

31.535

HW Gro

24.400

31.442

32.630

33.779

34.937

36.767

I n v e n t o r y a t

Acres

0.112

0.116

0.118

0.122

0.125

0.128

SW Inv

86.534

86.064

95.548

101.562

109.096

108.087

HW PC

0.000

0.000

0.000

0.000

0.000

0.000

Gain, and

Com Gro

45.328

58.410

60.617

62.751

64.902

68.302

Com PC

0.000

0.000

0.000

0.000

0.000

0.000

Loss, and

AvD Inv

11.340

10.637

10.322

10.178

10.196

10.165

10.343

Acres

0.026

0.019

0.011

0.013

0.012

0.016

AvD PC

0.000

0.000

0.000

0.000

0.000

0.000

Industry

:10:53

Softwoods (Oak/Pine Demo)

Volume Recovered from area loss.

Acres

0.000

0.000

0.000

0.000

0.000

0.000

SW FH

24.897

27.985

18.776

23.505

22.841

32.955

Com Req

0.000

0.000

0.000

0.000

0.000

0.000

Gain A d j u s t e d f o r growth.

Acres

0.000

0.004

0.002

0.004

0.003

0.003

SW Gain

0.092

0.764

0.382

0.764

0.573

0.573

HW Gain

0.107

0.891

0.445

0.891

0.668

0.668

SW Loss

0.000

0.000

0.000

0.000

0.000

0.000

HW FH

29.027

32.628

21.891

27.405

26.630

38.423

Com Dif

0.000

0.000

0.000

0.000

0.000

0.000

Com Gain

0.199

1.655

0.827

1.655

1.241

1.241

HW Loss I

0.000

0.000

0.000

0.000

0.000

0.000

Com FH

53.924

60.613

40.667

50.910

49.471

71.378

SW Har

24.897

27.985

18.776

23.505

22.841

32.955

SW Adj

0.066

0.547

0.273

0.547

0.410

0.410

Com Loss

0.000

0.000

0.000

0.000

0.000

0.000

AvD FH

13.123

13.083

13.237

13.214

13.308

12.239

HW Har

29.027

32.628

21.891

27.405

26.630

38.423

HU Adj

0.077

0.638

0.319

0.638

0.478

0.478

end o f period, Unstocked and Regeneration Acres, and BF/CF Ratios for

HW Inv

100.891

100.342

111.400

118.412

127.197

126.019

I n v e n t o r y Identity.

Acres

0.112

0.116

0.118

0.122

0.125

0.128

SW Inv

86.534

86.064

95.548

101.562

109.096

108.087

HW Inv

100.891

100.342

111.400

118.412

127.197

126.019

Com Inv

187.424

186.406

206.948

219.974

236.293

234.106

Com Inv

187.424

186.406

206.948

219.974

236.293

234.106

AvD I n v

10.637

10.322

10.178

10.196

10.165

10.343

Acres

0.000

0.000

0.000

0.000

0.000

0.000

Un End

0.000

0.000

0.000

0.000

0.000

0.000

SW Dif

0.000

0.000

0.000

0.000

0.000

0.000

Un Sta

0.000

0.000

0.000

0.000

0.000

0.000

HW Dif

0.000

0.000

0.000

0.000

0.000

0.000

Regen

0.026

0.021

0.012

0.015

0.013

0.017

Com Dif

0.000

0.000

0.000

0.000

0.000

0.000

Reg Ad

0.026

0.019

0.011

0.013

0.012

0.016

SW Gro

16.919

22.275

24.875

24.995

26.149

26.101

SW Rec

0.000

0.000

0.000

0.000

0.000

0.000

Com Req

53.924

60.613

40.667

50.910

49.471

71.378

Com Har

53.924

60.613

40.667

50.910

49.471

71.378

Com Adj

0.143

1.184

0.592

1.184

0.888

0.888

Inventory

I n v Rat

0.000

0.000

0.000

0.000

0.000

0.000

HW Gro

19.727

25.970

29.002

29.142

30.488

30.432

HW Rec

0.000

0.000

0.000

0.000

0.000

0.000

Com Dif

0.000

0.000

0.000

0.000

0.000

0.000

and Harvest

Har Rat

0.000

0.000

0.000

0.000

0.000

0.000

Com Gro

36.646

48.245

53.878

54.138

56.637

56.533

Com

0

0

0

0

0

0

Rec

.000

.000

.000

.000

.000

.000

Example 1. File-ATLIST

Appendix G 103
P C - A T L A S PC-ATLAS NE EXAMPLE RUN #1 - Base Run 8-Extended Harvest.

Run on 11/28/1990 16:10:57 Using RAF from 11/28/1990 16:10:53

Industry Softwoods (Oak/Pine Demo)

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Harvest

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

U n i t 1 Example #1 Northeast Region - Forest

A v a i l a b l e Softwood Final

1

0.000

0.000

0.000

0.000

0.000

0.000

2

0.000

0.000

0.000

0.000

0.000

0.000

3

0.000

0.000

0.000

0.000

0.000

0.000

A v a i l a b l e Hardwood Final

1

0.000

0.000

0.000

0.000

0.000

0.000

2

0.000

0.000

0.000

0.000

0.000

0.000

Forest (Species)

1

2

3

4

NO SPECIES

NO SPECIES

NO SPECIES

3

0.000

0.000

0.000

0.000

0.000

0.000

Type.

1

2

3

OAK/PINE

Harvest

4

83.960

88.498

80.555

92.124

81.551

98.888

Harvest

4

97.889

103.181

93.920

107.408

95.081

115.295

Volume.

83.960

88.498

80.555

92.124

81.551

98.888

Vo lume.

97.889

103.181

93.920

107.408

95.081

115.295

Example 1. File-ATLIST

104 Appendix G
P C

Run

Harvest 1

Period

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Req

Regen

MI

1

2

3

4

5

- A T L A S PC-ATLAS NE

on 11/28/1990 16:10

U n i t 1

0 Year

Acres

0.000

0.015

0.004

0.013

0.026

0.021

0.019

0.008

0.006

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.112

0.000

0.112

Acres

0.000

0.000

0.000

0.000

0.002

0.002

0.008

0.008

0.006

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.026

0.026

Acres

0.112

0.000

0.000

0.000

0.000

Example ;

:57

EXAMPLE RUN

U s i n g RAF 1

#1 Northeast Region

1980 Management U n i t 1

I n v e n t o r y a t s t a r t o f period

SW Inv

0.000

7.807

2.993

9.107

21.199

20.226

20.444

4.527

4.134

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

90.437

Harvest

SW Har

0.000

0.000

0.000

0.000

1.992

2.290

10.304

5.389

4.921

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

24.897

I n v e n t o r y a t

SW Inv

90.437

0.000

0.000

0.000

0.000

HW Inv

0.000

9.102

3.489

10.617

24.716

23.582

23.836

5.279

4.820

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

105.441

Com Inv

0.000

16.909

6.482

19.724

45.915

43.809

44.279

9.806

8.954

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

195.878

d u r i n g p e r i o d

HW Har

0.000

0.000

0.000

0.000

2.322

2.671

12.013

6.284

5.737

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

29.027

Com Har

0.000

0.000

0.000

0.000

4.314

4.961

22.317

11.673

10.659

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

53.924

53.924

s t a r t o f period

HW Inv

105.441

0.000

0.000

0.000

0.000

Com Inv

195.878

0.000

0.000

0.000

0.000

#1 - Base Run 8-Extended Harvest.

Prom 11/28/1990 16:

- F o r e s t Industry

NE-FI OAK-PINE

FH Prop

0.000

0.000

0.000

0.000

0.080

0.092

0.414

0.216

0.198

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.000

AvD Inv

11.340

AvD Har

13.123

MI I d e n t i f i c a t i o n

REGEN / NO THIN

NOT USED

NOT USED

NOT USED

NOT USED

10:53

Softwoods (Oak/Pine Demo)

T o t a l over Management Intensities

Acres

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0,

0,

0,

0,

0

0

0

0

000

000

,000

000

,000

.000

,000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

Growth d u r i n g period

SU Gro

0.000

0.013

0.007

1.325

3.523

5.985

5.995

3.294

0.787

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

20.928

Net

SU Net

0.000

0.026

0.025

0.019

0.022

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.092

HU Gro

0.000

0.015

0.008

1.544

4.108

6.978

6.989

3.840

0.918

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

24.400

Area Change

HU Net

0.000

0.030

0.029

0.022

0.026

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.107

Com

0.

0.

0.

2.

7.

12.

12.

7.

1 .

0.

0.

0.

0.

0.

0.

0.

0.

0.

45.

Com

0,

0,

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Gro

000

028

014

869

631

963

984

134

705

000

000

000

000

000

000

,000

.000

,000

,328

Net

.000

.056

.054

.041

.049

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.199

Example 1. File-ATHUR

Appendix G 105
P C

Run

Harvest

Period

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Req

Regen

MI

1

2

3

4

5

- A T L A S PC-ATLAS NE

on 11/28/1990 16:10

U n i t 1

1 Year

Acres

0.026

0.000

0.015

0.004

0.013

0.024

0.019

0.011

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.112

0.000

0.112

Acres

0.000

0.000

0.000

0.000

.0.002

0.002

0.004

0.011

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.019

0.021

Example

:57

EXAMPLE RUN

Using RAF

#1 Northeast Region

1990 Management U n i t 1

I n v e n t o r y a t s t a r t o f period

SW Inv

0.000

0.026

7.832

4.333

12.331

25.145

22.649

14.219

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

86.534

Harvest

SU Har

0.000

0.000

0.000

0.000

2.239

2.575

6.245

16.927

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

27.985

I n v e n t o r y a t

Acres

0.112

0.000

0.000

0.000

0.000

SU I n v

86.534

0.000

0.000

0.000

0.000

HW Inv

0.000

0.030

9.131

5.052

14.376

29.316

26.406

16.579

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

100.891

Com I n v

0.000

0.056

16.963

9.385

26.707

54.461

49.055

30.798

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

187.424

d u r i n g period

HW Har

0.000

0.000

0.000

0.000

2.610

3.002

7.281

19.735

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

32.628

s t a r t o f

HW Inv

100.891

0.000

0.000

0.000

0.000

Com Har

0.000

0.000

0.000

0.000

4.849

5.576

13.526

36.662

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

60.613

60.613

:

 period

Com Inv

187.424

0.000

0.000

0.000

0.000

#1 - Base Run 8-Extended Harvest.

from 11/28/1990 16:

- Forest Industry

NE-FI OAK-PINE

FH Prop

0.000

0.000

0.000

0.000

0.080

0.092

0.223

0.605

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.000

AvO Inv

10.637

AvO Har

13.083

MI I d e n t i f i c a t i o n

REGEN /' NO THIN

NOT USED

NOT USED

NOT USED

NOT USED

10:53

Softwoods I[Oak/Pine Demo)

T o t a l over Management Intensities

Acres

0.002

0.001

0.001

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.004

Growth d u r i n g p e r i o d

SU Gro

0.000

6.027

0.082

4.039

1.605

3.101

6.122

5.991

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

26.968

Net

SW Net

0.000

0.213

0.207

0.157

0.187

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.764

HU Gro

0.000

7.027

0.096

4.709

1.872

3.616

7.138

6.985

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

31.442

Area Change

HW Net

0.000

0.249

0.242

0.183

0.218

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.891

Com Gro

0.000

13.055

0.178

8.747

3.477

6.717

13.261

12.976

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

58.410

Com Net

0.000

0.462

0.449

0.339

0.404

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.655

106 Appendix G

Example 1. Flk-ATHUR
P C

Run

Harvest

Period

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Req

Regen

HI

1

2

3

4

5

- A T L A S PC-ATLAS NE

on 11/28/1990 16:10

Unit 1

5 Year

Acres

0.013

0.016

0.014

0.022

0.028

0.000

0.013

0.001

0.007

0.011

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.125

0.000

0.125

Acres

0.000

0.000

0.000

0.000

0.002

0.000

0.002

0.001

0.001

0.009

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.016

0.017

Acres

0.125

0.000

0.000

0.000

0.000

Example

:57

EXAMPLE RUN

Using RAF

#1 Northeast Region

2030 Management Unit 1

Inventory at s t a r t of period

SW Inv

0.000

3.592

6.444

15.990

26.579

0.000

19.454

2.657

13.980

20.401

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

109.096

Harvest

SW Har

0.000

0.000

0.000

0.000

2.636

0.000

3.032

3.032

3.032

21.223

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

32.955

Inventory at

SW Inv

109.096

0.000

0.000

0.000

0.000

HW Inv

0.000

4.188

7.513

18.642

30.989

0.000

22.682

3.098

16.299

23.786

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

127.197

Com Inv

0.000

7.779

13.956

34.632

57.568

0.000

42.136

5.755

30.278

44.187

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

236.293

during period

HW Har

0.000

0.000

0.000

0.000

3.074

0.000

3.535

3.535

3.535

24.744

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

38.423

s t a r t of

HW Inv

127.197

0.000

0.000

0.000

0.000

Com Har

0.000

0.000

0.000

0.000

5.710

0.000

6.567

6.567

6.567

45.967

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

71.378

71.378

period

Com Inv

236.293

0.000

0.000

0.000

0.000

#1 - Base Run 8-Extended Harvest.

from 11/28/1990 16:

- Forest Industry

NE-FI OAK-PINE

FH Prop

0.000

0.000

0.000

0.000

0.080

0.000

0.092

0.092

0.092

0.644

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.000

AvD Inv

10.165

AvD Har

12.239

MI I d e n t i f i c a t i o n

REGEN / NO THIN

NOT USED

NOT USED

NOT USED

NOT USED

10:53

Softwoods (Oak/Pine Demo)

T o t a l over Management Intensities

Acres

0.002

0.001

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.003

Growth during period

SW Gro

0.000

3.160

3.845

3.434

6.001

6.200

0.485

3.042

0.496

4.617

0.254

0.000

0.000

0.000

0.000

0.000

0.000

0.000

31.535

Net

SW Net

0.000

0.160

0.155

0.117

0.140

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.573

HW Gro

0.000

3.685

4.482

4.004

6.997

7.229

0.565

3.547

0.578

5.383

0.296

0.000

0.000

0.000

0.000

0.000

0.000

0.000

36.767

Area Change

HW Net

0.000

0.187

0.181

0.137

0.163

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.668

Com Gro

0.000

6.845

8.327

7.439

12.999

13.429

1.050

6.589

1.074

10.000

0.550

0.000

0.000

0.000

0.000

0.000

0.000

0.000

68.302

Com Net

0.000

0.347

0.336

0.254

0.303

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.241

Exampla 1. Fllo-ATHUR

Appendix Q 107
P C - A T L A S PC-ATLAS NE

Run on 11/28/1990 16:10:57

EXAMPLE RUN #1 - Base Run 8-Extended Harvest.

Using RAF from 11/28/1990 16:10:53

Harvest Unit 1 Example #1 Northeast Region - Forest Industry Softwoods (Oak/Pine Demo)

Period 6 Year 2040 Management Unit 1 NE-FI OAK-PINE Total over Management Intensities

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

MI

1

2

3

4

5

Inventory at

Acres

0.017

0.014

0.016

0.014

0.022

0.025

0.000

0.011

0.000

0.006

0.001

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.128

0.000

0.128

SW Inv

0.000

3.240

7.551

9.974

21.689

30.565

0.000

19.465

0.121

12.655

2.827

0.000

0.000

0.000

0.000

0.000

0.000

0.000

108.087

Inventory at

Acres

0.128

0.000

0.000

0.000

0.000

SW Inv

108.087

0.000

0.000

0.000

0.000

start of

HW Inv

0.000

3.778

8.803

11.629

25.288

35.636

0.000

22.694

0.141

14.755

3.296

0.000

0.000

0.000

0.000

0.000

0.000

0.000

126.019

start of

HW Inv

126.019

0.000

0.000

0.000

0.000

period

Com Inv

0.000

7.018

16.354

21.603

46.977

66.200

0.000

42.159

0.262

27.410

6.123

0.000

0.000

0.000

0.000

0.000

0.000

0.000

234.106

period

Com Inv

234.106

0.000

0.000

0.000

0.000

AvD Inv

10.343

MI Identification

REGEN / NO THIN

NOT USED

NOT USED

NOT USED

NOT USED

Example 1. File-ATHUR

108 Appendix G
P C - A T L A S PC-ATLAS NE

Run on 11/28/1990 16:10:57

EXAMPLE RUN #1 - Base Run 8-Extended Harvest.

Using RAF from 11/28/1990 16:10:53

Harvest

Pd Year

0 1980

1 1990

2 2000

3 2010

4 2020

5 2030

6 2040

Pd Year

0 1980

1 1990

2 2000

3 2010

4 2020

5 2030

Pd Year

0 1980

1 1990

2 2000

3 2010

4 2020

5 2030

Pd Year

0 1980

1 1990

2 2000

3 2010

4 2020

5 2030

6 2040

Pd Year

0 1980

1 1990

2 2000

3 2010

4 2020

5 2030

Pd Year

0 1980

1 1990

2 2000

3 2010

4 2020

5 2030

Unit 1 Example #1

Inventory Acres by

REGEN / NO THIN

0.112

0.112

0.116

0.118

0.122

0.125

0.128

Northeast Region - Forest Industry Softwoods

Management I n t e n s i t y f o r

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

0.000

a l l Forest (Species)

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

0.000

(Oak/Pine Demo)

Types.

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Harvest Acres by Management I n t e n s i t y for a l l Forest (Species) Types.

REGEN / NO THIN

0.026

0.019

0.011

0.013

0.012

0.016

Regeneration Acres

REGEN / NO THIN

0.026

0.021

0.012

0.015

0.013

0.017

Inventory Acres by

REGEN / NO THIN

0.112

0.112

0.116

0.118

0.122

0.125

0.128

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

by Management Intensity

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

Management I n t e n s i t y for

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Harvest Acres by Management I n t e n s i t y f o r

REGEN / NO THIN

0.026

0.019

0.011

0.013

0.012

0.016

Regeneration Acres

REGEN / NO THIN

0.026

0.021

0.012

0.015

0.013

0.017

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

by Management Intensity

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

f o r a l l Forest (Species) Types.

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

OAK/PINE.

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

0.000

OAK/PINE.

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

for OAK/PINE.

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

NOT USED

0.000

0.000

0.000

0.000

0.000

0.000

Total

0.112

0.112

0.116

0.118

0.122

0.125

0.128

Total

0.026

0.019

0.011

0.013

0.012

0.016

Total

0.026

0.021

0.012

0.015

0.013

0.017

Total

0.112

0.112

0.116

0.118

0.122

0.125

0.128

Total

0.026

0.019

0.011

0.013

0.012

0.016

Total

0.026

0.021

0.012

0.015

0.013

0.017

Example 1. File-ATACRE

Appendix G 109
PC-ATLAS Inventories

Exanple #1 90.437

86.534

86.064

95.548

101.562

109.096

108.087

from 11/28/1990 16:

105.441

100.891

100.342

111.400

118.412

127.197

126.019

20.928

26.968

27.987

28.972

29.965

31.535

10:57

24.400

31.442

32.630

33.779

34.937

36.767

24.897

27.985

18.776

23.505

22.841

32.955

29.027

32.628

21.891

27.405

26.630

38.423

Example 1. File-ATINV

110 Appendix G
Example 2

Input Files

As in the first example, the input files for example 2 are derived from the RPA assessment

(Haynes 1990). But this example presents additional options. The input and output files are

much larger as a result of the implementation of Ml options and the addition of I Us, MUs,

and HUs. Example 2 is configured with three IUs and three MUs that are combined into two

HUs (fig. 10). The stratification of forest types by softwood and hardwood fiber type and the

addition of Mis for softwoods make figure 10 look much different than figure 9. Because the

dimensions of ATLAS are rather large (see fig. 2), the model still has plenty of space for the

representation of other ownerships, site classes, forest types, and management regimes.

Other than the fact that they both are included in the input files, there is no linkage between

the two HUs and their respective inventories. The files in example 1 could be combined with

the files presented here, as the values of the projections would not change.

This example shows two methods of placing the acres into the alternative MIs. The strategy

presented here involves additional input at both the IU and MU levels. First, the softwood

inventory units contain records for acres and volume per acre for MIs 1 through 5. And

second, the use of card type 28 in the Douglas-fir and western hemlock MUs will shift acres

to alternative management during the simulation. In this example, acres are moved out of

MI-1, and once in Ml 2 through 5, they remain there (though some will be lost from the

timberland base from area losses that take place via MU card types 11 and 13). The card

types 28, 32, 33, 34, 36, and 37 are Ml specific, so additional MIs require the input of additional records. Card type 8 and 24 have entries by Ml, but only one of each is allowed.

Inventory unit—The records present in the following inventory units are arranged by forest

type, Ml, and 10-year age class. As in example 1, all records for acres and volume per acre

are in stocking level 1. All volume units are in cubic feet. The five-digit identifying code has

no significance to ATLAS; it represents forest type and site class. For simplicity, the IU identifier matches the first five digits of the MU identifier. The three IUs appear as they do in the

input file. The double asterisks (**) identify comment records.

** EXAMPLE 2 - * * pnww f i /

** MI-1

13102 3 1

13102 3 1

13102 3 1

13102 3 1

13102 3 1

13102 3 1

13102 3 1

13102 3 1

13102 3 1

13102 3 1

13102 3 1

13102 3 1

13102 3 1

** MI-2

13102 3 2

13102 3 2

13102 3 2

13102 3 2

0

1

2

3

4

5

6

7

8

9

10

12

15

0

1

2

3

- file:INVEN

douglas-fir / medium site class

15089

33311

53333

136599

197271

84312

48068

21413

22573

8316

8574

17384

40733

60355

22208

21333

13660

49

255

1825

3190

5138

5306

6992

10229

12198

11562

3283

12209

7188

49

255

904

2862

.0

.6

.2

.8

.2

.5

.7

.2

.4

.0

.0

.5

.2

.0

.6

0

.7

Appendix G 111
** MI-3

13102 3 3

13102 3 3

13102 3 3

13102 3 3

** MI-4

13102 3 4

13102 3 4

13102 3 4

13102 3 4

13102 3 4

13102 3 4

13102 3 4 ** MI- 5

13102 3 5

13102 3 5

13102 3 5

13102 3 5

13102 3 5

0

1

2

3

0

1

2

3

4

5

6

0

1

2

3

4

30177

44415

42667

54640

165976

99934

74667

54640

23208

9368

5341

30177

22208

21333

13660

11604

49.0

255.6

1125.0

3188.2

49.0

255.6

1122.0

3434.5

6239.0

6525.2

8154.6

49.0

255.6

1125.0

3434.5

4196.1

**pnww f i

** MI-1

13202 3 1

13202 3 1

13202 3 1

13202 3 1

13202 3 1

13202 3 1

13202 3 1

13202 3 1

13202 3 1

13202

13202

** MI-3

13202 3 3

13202 3 3

13202 3 3

13202 3 3

**pnww

** MI-1

13452 3 1

13452 3 1

13452 3 1

13452 3 1

13452 3 1

13452 3 1

13452 3 1

13452 3 1

13452 3 1

western hemlock / medium site class

0

1

2

3

4

5

6

7

14

3 1 15

3 1 17

0

1

2

3

f i /

49877

34602

37024

60080

76243

52382

15419

24675

4968

13245

9068

74815

51902

55535

25749

medium

16778

16918

91121

58522

86759

30040

6197

14069

4831

400.0

757.6

2606.2

4915.3

4581.1

6988.1

10431.5

9601.2

9802.0

11898.3

10574.0

400.0

583.4

1200.0

5178.7

s i t e c l

1540.7

537.5

2569.1

2589.9

4251.3

6252.0

1781.0

3753.0

5681.0

Management unit—For every ML) there is one IU. Many of the card types presented here

were described in example 1. Just a brief description will be used for those card types

repeated here. If you have not done so, it is advisable to first read through input descriptions for example 1.

112 Appendix G

red alder / class
MI-1

Nonmanaged

Average

stocking

MI-2

Plant only

Average

stocking

MI-3

Plant

PCT

Average

Stocking

MI-4 MI-5

Plant gen. Imp.

Plant gen. Imp. PCT

PCT Fertilize

Fertilize Comm. thin

Average

stocking

Management

unit 1

Forest Industry

Douglas-fir

Medium site

>

Average

stocking

Harvest

unit 1

Pacific Northwest

-west side

Forest industry

Softwoods

MI-1

Nonmanaged

Average

stocking

MI-3

Plant

PCT

Average

stocking

Management

unit 2

Forest Industry

W. hemlock

Medium site

MI-1

Nonmanaged

Avenge

stocking

Management

unit 1

Forest Industry

Red alder

Medium site

Harvest

unit 2

Pacific Northwest

-west side

Forest industry

Hardwoods

Figure 10—The linkages between the example 2 input files. Each harvest unit and associated inventories are independent, and there

is no direct link between the harvest units.

Appendix G 113
** EXAMPLE 2

** PNWW Forest

** Douglas-fir

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

00

1

2

8

11

1 1

12

13

23

24

28

28

28

28

29

29

30

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

33

33

33

33

33

33

33

33

33

33

33

34

1

1

1

1

1

2

1

1

1

1

2

2

2

3

3

3

4

4

4

5

5

5

1

1

1

2

2

3

3

4

4

5

5

5

file: MANAGE

Industry Medium Site Class

FI-DOUG-FIR--MS

0

0

1

2

3

4

5

0

6

12

0

6

12

0

6

12

0

6

12

0

6

12

0

6

12

0

6

0

6

0

6

0

6

3

13102

5

1.816

1.555

0.500

0

0.76

0.00

0.20

0.10

0.55

0.10

.75

.75

1.00

0.0

17.3

20.4

0.0

17.3

20.4

0.0

17.3

20.4

0.0

17.3

20.4

0.0

17.3

20.4

0

10415

20461

0

10107

0

11004

0

11947

0

11285

1200

1

5

1.711

0.250

17

0.38

0.00

8.00

4.1

18.6

19.9

4.1

18.6

19.9

4.1

18.6

19.9

4.1

18.6

19.9

4.1

18.6

19.9

443

12451

21901

443

11878

443

12732

443

13650

443

13547

4

1.813

0.125

1.000

0.25

1.00

17.00

7.6

19.6

19.2

7.6

19.6

19.2

7.6

19.6

19.2

7.6

19.6

19.2

7.6

19.6

19.2

1777

14215

23341

904

13294

1122

14151

1125

15045

1125

15215

4

1.856

0.065

1.00

1.00

1

10.7

20.3

18.3

10.7

20.3

18.3

10.7

20.3

18.3

10.7

20.3

18.3

10.7

20.3

18.3

3677

15904

24781

3254

14492

3624

15360

3904

16245

3920

16509

4

1.843

0.060

0.00

1.00

0.10

13.3

20.6

17.2

13.3

20.6

17.2

13.3

20.6

17.2

13.3

20.6

17.2

13.3

20.6

17.2

5884

17492

26221

5666

15526

6263

16405

7058

17291

5845

17566

1.816

0.000

0.00

1.00

0.90

15.5

20.6

15.9

15.5

20.6

15.9

15.5

20.6

15.9

15.5

20.6

15.9

15.5

20.6

15.9

8186

19002

27661

7967

15526

8753

16405

9840

17291

8711

17566

114 Appendix G
FILE MANAGE (cont.)

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

13102000

36 1

36 2

36 3

36 3

36 4

36 4

36 4

36 5

36 5

37 1

37 2

37 3

37 4

37 5

0

0

6

0

** Western Hemlock

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

23202000

00

1

2

8

1 1

1 1

12

13

23

24

28 1 3

29 1

29 2

30 1

32 1

32 1

32 1

32 3

32 3

32 3

33 1

33 1

33 1

33 3

33 3

36 1

36 3

36 3

37 1

37 3

0.9189

0.9189

1.0000

0.9189 0.

0.9600

0.9189 0.

0.9189

1.0000

0.9189 0

1.209

1.209

1.209

1.209

1.209

FI-W.HEMLOCK-MS

0

0

1

0

6

12

0

6

12

0

6

12

0

6

0

13202

5

0.635

0.593

0.500

0

0.72

.00

0.60

.75

.75

1.00

0.0

16.3

23.4

0.0

16.3

23.4

0

12785

21851

0

15896

0.9467

1.0000

0.9467

1.184

1.184

9189

9189

.9189

3

0.627

0.250

17

0.36

.00

8.00

3.7

17.5

24.9

3.7

17.5

24.9

681

14812

22824

681

18678

0.9467

0.9189

0.9189

0.9189

4

0.644

0.125

1.000

0.24

1.00

17.00

6.8

18.5

26.7

6.8

18.5

26.7

2313

16583

23672

1441

20803

0.9467

0.9189

0.9189

0.9189

0.648

0.065

1.00

1.00

1

9.5

19.5

28.8

9.5

19.5

28.8

4604

18141

24387

4774

22500

0.9467

0.9600

0.9189

0.9189

0.644

0.060

0.00

0.10

11.7

20.7

31.3

11.7

20.7

31.3

7747

19523

24952

8805

24042

0.9189

0.9900

0.635

0.000

0.00

0.90

13.7

22.0

34.1

13.7

22.0

34.1

10450

20754

25340

12574

24042

Appendix G 115
FILE MANAGE (cont.)

** Red Alder

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

13452000

00

1

2

8

1 1

11

12

13

23

29

29

30

32

32

32

33

33

33

36

37

1

2

1

1

1

1

1

1

1

1

1

0

0

1

0

6

12

0

6

12

FI-RED ALDER-MS

13452

4

0.169

0.308

0.500

0

0.60

.50

.50

1.00

6.0

18.6

17.0

0

9450

16977

0.3101

1.213

7

0.254

0.250

17

0.30

5.00

10.0

17.0

17.0

1680

10727

18227

0.205

0.125

1.000

0.20

17.00

12.5

17.0

17.0

3045

11977

19477

0.173

0.065

1.00

1

13.0

16.0

17.0

4729

13227

20727

0.172

0.060

0.00

0.10

14.4

15.0

17.0

6453

14477

21977

0.169

0.000

0.00

0.90

15.5

16.0

17.0

8048

15727

23227

Card types 00, 01, 02,08, 11, and 12—These perform the same function they did in example 1. The number of entries for minimum harvest age (card type 08) has been increased

to match the number of Mis. No card type 14 is present, so by default all area gain will be to

MI-1 (the acres gained in age class 0 of MI-1 will be subject to Ml shifting according to card

type 28).

Card type 13—A check of card type 11 indicates that area loss will occur. As entered here,

card type 13 is distributing 1 00 percent of the area loss across all age classes. The acres

removed from a specific age class will be based on the relative proportion of acres within

that age class (across all Mis). (By default, area loss occurs across all MIs.) Card type 13

must be present for area loss to occur; if total acres on card type 11 decline and card type

13 is not present, the area loss will not take place.

Card type 23—As in example 1, the average stocking proportion is entered followed by the

assignment of 100 percent of the regeneration to stocking level 1. This example includes an

average stocking proportion for stocking levels 2 and 3, but they will not be used (there is no

IU inventory in stocking levels 2 or 3, all regeneration goes to stocking level 1, and the lower

stocking bounds are set to 0 on card type 24).

Card type 24—The stocking thresholds entered in data fields 1 and 2 are set to 0 (ensuring

that all acres will remain in stocking level 1). The entries in data fields 3 through 6 are the

average stocking proportions for Mis 2 through 5. This card type could have been omitted

because the entries shown here are the default values.

Card type 28—-The number of entries for this card type reflect the multiple Ml shifts that will

occur. There is no card type 07 present, so all shifts occur at regeneration (age class 0).

The value entered in column 14 is the Ml to lose acres (for format details, see appendix B).

116 Appendix G
The value in column 16 is the Ml to gain the acres. The value in data field 1 is the proportion

of total acres in the donating Ml to be shifted to the receiving Ml (here the proportion applies

to the acres in the zero age class of MI-1). These records are in the user-default format, so

the same shift proportion will apply to each period of the simulation. Within each MU, the

proportions removing acres from a specific Ml must never sum to more than 1.00. (Shift

errors sometimes occur in the PC version of ATLAS when exactly 100 percent of the acres

are to shift out of a particular Ml. If this happens, lower the shift so the sum is 0.9999 or

less.) In example 2, 95 percent of acres regenerated in MI-1 of the Douglas-fir MU will shift

to another Ml (this will include newly regenerated acres and acres entering age class 0 via

area gain).

Card type 29—Card type 29 controls the percentage of volume to be recovered as exogenous harvest when area loss occurs. There are two card type 29 entries. The first entry

(flagged with a 1) is the percentage of softwood volume to recover, and the second record

is for the percentage of hardwood volume to recover. Most acres carry both softwood and

hardwood volume, as determined by card type 36. In the first two MUs, 75 percent of the

softwood volume and 75 percent of the hardwood volume will be recovered from the acres

removed as a result of downward trends in card type 11. The volume plus growth on area

change will be counted toward the fulfillment of the harvest request entered in the file

HARVEST. For the red alder MU, these ratios are both 50 percent.

Card type 30—In each MU, there is one relative-density-change record. Acres with softwood types moving into age classes 1 through 7 will be subject to the full stocking adjustment. For red alder, the full adjustment is in force up to age class 5. Softwoods forest types

moving into the 8th through 17th age classes will get half of the full adjustment. The half

adjustment begins in age class 5 for red alder. (Acres in the 17th age class will be subjected

to half the full adjustment until harvested. Some growth will continue to occur in age class

17 just due to a change in stocking.)

Card type 32—The average diameters by age class are the same for each Ml. When these

inputs were developed, not enough data were available to make them differ by Ml (that is,

one might expect higher averages with genetically selected planting stock and fertilization).

Card type 33—The five yield tables demonstrate the results of alternative management on

projected volume. The MI-5 yield table reflects the effects of a thinning in age class 3. For

MIs 2 through 5 there was no need for an entry beyond age class 12 because, in a sixperiod projection, acres would not reach age 120 (to save space, the diameters in age

classes 12 through 17 of card type 32 also could have been truncated).

Card type 34—This card is for the commercial thinning target volume (exogenous harvest).

The actual removal will be the product of this volume and the average stocking proportion.

In this case, the thin will take place in MI-5 as the acres move from age class 3 to age class

4 (average age of 40). Because the average stocking proportion for MI-5 is 100 percent,

entry for card type 34 will be the volume per acre removed (after removal there will be

growth on the thinning volume via card type 37). Compare the Ml-4 and MI-5 yield tables to

see the effect of the thinning on posttreatment volume for the residual acres.

Card type 36—The softwood proportions are also by Ml. The entries here reflect the use of

the user-default format for various age classes.

Card type 37—The growth-on-harvest proportions are by Ml. These values were assumed

to be the same for all Mis and for all age classes; the user-default format is used.

Appendix G 117
Harvest unit—The softwood and hardwood harvest units are combined in one HARVEST

input file. The individual HUs are made up of card types H1 through H8. They share the

same HU title, starting year, and request for output reports found at the top of the file in card

types 01 through 05. During the simulation, each harvest unit is processed separately—

there is no linkage. (Remember that the input files are processed together, and the program

HUSCAN has access to all IUs and MUs and assigns them to the proper harvest unit.) The

same simulation results would be obtained if the softwood and hardwood IU, MU, and HUs

were separated and run independently. The implementation of MIs does not increase the

size of the HU input. The HU card type H6 contains the user-defined labels for each Ml; five

of these records are required regardless of whether MIs are implemented.

Card types 01, 02, 03, 04, and 05—These card types are described in example 1. They

are virtually the same as example 1 except here an HU report is chosen (HUREP) and a

more detailed MU report is chosen (level 2). The same simulation components are reported

at both levels 1 and 2, but the level 2 report lists the components for each individual Ml.

Card types HO, H1, H2, H3, H6, and H8—Because these card types are described in detail

for example 1, the description here will be general. The card types are repeated for each of

the example 2 HUs. The last two digits (the 01 and 02 in columns three and four) identify

the HU by number. Up to 32 HUs can be stacked in this fashion. Card types HO and H1

118 Appendix G

** EXAMPLE 2 - file: HARVEST

** Derived from RPA Simulation: Base 8-Extended. Model: TAMM90/ATLAS.

01

02

**

03

04 HU

05 MU

**

Reports

Reports

EXAMPLE 2 Simulation

1980

DUMP IFDUMP

0 0

2030

1980

** PNWW FI OREGON/WASH HWD AND SWD SUBSET

H001

H101

H201

H201

H301

H601

H601

H601

H601

H601

H801

H801

H002

H102

H202

H302

H602

H602

H602

H602

H602

H802

3 0

1

2

3

4

5

1

3

3 0

1

2

3

4

5

7

Harvest U n i t #1 PNWW

EXAMPLE 2 10

13102000

23202000

2868.635 3986.800

GROW / NORM YLDS

PLANT ONLY

PLANT AND PCT

FERT/GEN W/PCT

MI4 + C0MM THIN

DOUGLAS-FIR

PURE HEMLOCK

Harvest Unit #2 PNWW

EXAMPLE 2 10

13452000

288.745 318.288

GROW/NORM YLDS

N/A

N/A

N/A

N/A

RED ALDER

- PC-ATLAS Base Run 8-Extended Harvest.

LSDUMP SUMREP HUREP MUREP

0 1 1 2

F o r e s t I n d u s t r y Douglas-fir/Hemlock

5 2.0 0.1 1.9

4530.801 3731.747 3749.302 3253.326

1

1

F o r e s t I n d u s t r y Red Alder

5 2.0 0.1 1.9

393.889 95.616 49.004 51.212

2
contain titles and simulation parameters. Card type H2 contains the MU(s) assigned to the

harvest unit. Card type H3 is the periodic endogenous harvest request, in million cubic feet

(remember, any unit of measure is valid as long as it is consistent with the IU inventory and

the MU yield table). Card type H6 reflects the titles chosen to reflect the MIs. And card

type H8 contains the names associated with the MU forest types (referenced by MU card

type 02).

Example 2 The second example is more complex than the first. To save space, fewer output files are

Output Files presented. With the addition of two MUs and corresponding lUs, the files LIST.IU and

LIST.MU will be about three times as large as those in the previous example.

Presented are LIST.HU and TREE from HUSCAN, ATLOG, ATLIST, ATHUR, ATMUR,

ATACRE, ATINV, and ATTMU from ATLAS. The LIST.HU file has been expanded by the

additional inventory cells in the input file. It might be useful for users to run this example

simulation and print the IU and MU list files. It is important to become familiar with the type

of information found there.

The HARVEST file has an HU for softwoods and one for hardwoods. In each case, the

combined fiber type (both softwood and hardwood) was requested on HU card H3. The

harvest values are derived from the RPA timber assessment base simulation (Haynes

1990). In that simulation, the softwood and hardwood harvests were balanced (reduced) by

expected "come-along" volume. In other words, the softwood volume harvested from the

red alder MU reduced the softwood harvest request from the Douglas-fir and hemlock MUs

(and vice-versa).

There are warning messages in file ATLOG. In period 3, the harvest request in the softwood HU was about 3,000 cubic feet more than the volume available. Both the available

and requested volume are reported. The request has been reduced by the exogenous

volume that came from commercial thinning. This 3,000-cubic-foot deficit also can be seen

in the ATLIST report as -0.003 (under Thinning and Final Harvest on the far right in the

column titled Com Dif.). See appendix C for interpreting the output files.

Appendix G 119
P C - H U S C A N 12/ 3/1990 1 1 : 7:45 PAGE 1

RECORD CT**N*************** ***** ***** ***** ***** ***** *****

1 ** EXAMPLE 2 -- file: HARVEST

2 ** D e r i v e d from RPA Si m u l a t i o n : Base 8-Extended. Model: TAMM90/ATLAS.

3 01 EXAMPLE 2 Simulation • PC-ATLAS Base Run 8-Extended Harvest.

4 02 1980

5 ** DUMP IFDUMP LSDUMP SUMREP HUREP MUREP

6 03 0 0 0 1 1 2

7 04 HU R e p o r t s 2030

8 05 MU Reports 1980

0 10 RECORDS READ FOR GENERAL RUN INFORMATION

5 COMMENT RECORDS (NOT PROCESSED)

5 ACTIVE RECORDS

INFORMATION PAST COLUMN 80 IS NOT PROCESSED

DEFAULT VALUES USED FOR GENERAL CARD TYPE 06

Example 2. Flle-L1ST.HU

120 Appendix G
P C - H U SCAN

06

07

12/ 3/1990 1 1 : 7:45 PAGE 2

HARVEST HEADER REPORT

CARD TYPE

01

02

03

04

05

RUN TITLE: EXAMPLE 2 Simulation

STARTING YEAR OF SIMULATION

DIAGNOSTIC OUTPUT OVERRIDE

FIRST AND LAST OUTPUT PERIODS

REPORT REQUESTS SUM, HU, MU

REPORT YEARS 1 2 3

HU 2030 0 0

MU 1980 0 0

- PC-ATLAS

1980

0

0 0

1

4

0

0

1

5

0

0

Base

2

6

0

0

Run

7

0

0

8-Extended Harvest.

8

0

0

9

0

0

10

0

0

11

0

0

12

0

0

ALTERNATE VOLUME MEASURE LABEL: NO ALTER. UNIT

MINIMUM DIAMETER FOR CONVERSION TO OTHER VOLUME

INITIAL SOFTWOOD FRACTIONS OF HARVEST

REGIONS 1 2 3

IOF 1 .000 .000 .000

IOF 2 .000 .000 .000

IOF 3 .000 .000 .000

IOF 4 .000 .000 .000

.00

4

.000

.000

.000

.000

5

.000

.000

.000

.000

6

.000

.000

.000

.000

7

.000

.000

.000

.000

8

.000

.000

.000

.000

0 Error(s) in General Card Types 01 to 06

Example 2. Flle-LIST.HU

Appendix G 121
P C - H U S C A N 1 2 / 3/1990 1 1 : 7:45 PAGE 3

RECORD C T * A * * l * A O P * * * * * * * * * * * * * * * * * * * * * * * * * * * * * . . . . . * * * * * . . . . . * * * * *

OREGON / WASH HWD AND SWD SUBSET

Harvest Unit #1 PNWW Forest Industry Douglas-fir/Hemlock

EXAMPLE 2 10 5 2.0 0.1 1.9

13102000

23202000

D 2868.635 3986.800 4530.801 3731.747 3749.302 3253.326

GROW/NORM YLDS

PLANT ONLY

PLANT AND PCT

FERT/GEN U/PCT

MI4 + COMM THIN

DOUGLAS-FIR 1

PURE HEMLOCK 1

0 12 RECORDS READ FOR HU NUMBER 01

0 COMMENT RECORDS (NOT PROCESSED)

12 ACTIVE RECORDS

INFORMATION PAST COLUMN 80 IS NOT PROCESSED

9

10

11

12

13

14

15

16

17

18

19

20

21

22

**

** PNWW FI

H001

H101

H201

H201

H301

H601

H601

H601

H601

H601

H801

H801

3

1

2

3

4

5

1

3

Example 2. Flle-LIST.HU

122 Appendix G
P C - H U S C A N 12/ 3/1990 1 1 : 7:45 PAGE

SIMULATION SETUP FOR EXAMPLE 2 S i m u l a t i o n - PC-ATLAS Base Run 8-Extended Harvest.

HU 1 Harvest Unit #1 PNWW Forest Industry DougIas-fir/Hemlock

CARD TYPE

H1

H2

H3

H4

H6

H8

HU LABEL EXAMPLE 2

PERIOD LENGTH IN YEARS 10

SIMULATION LENGTH IN PERIODS 5

MAXIMUM STOCKING PERMITTED 2.0000

EXPECTED STOCKING RANGE .1000 1.9000

MUS WITHIN THIS HU

13102000 23202000

COMBINED FINAL HARVEST REQUEST FOR THIS HU

PD

VOL

0

2868.6

1 2

3986.8 4530.8

COMBINED PARTIAL CUTTING REQUEST FOR THIS HU

PD 0 1 2

VOL

MANAGEMENT INTENSIFICATION LABELS

MI

3

3731.7

LABEL

1 GROW/NORM YLDS

2 PLANT ONLY

3 PLANT AND PCT

4 FERT/GEN W/PCT

5 MI4 + COMM THIN

PORT GROUP

CIES REPORT GROUP LABEL

1 SOFTWOOD DOUGLAS-FIR

3 SOFTWOOD PURE HEMLOCK

4

3749.3

5

3253.3

No e r r o r s in HU Card Types H1 to H8

Example 2. Flle--LIST.HU

Appendix G 123

3 4 5

SPECIES LABEL AND REPORT GROUP

SPECIES
MU- 13102000-

Example 2. File--LIST.HU

Note: This page reflects what the user will find in the file or receive from the printer.

124 Appendix G
AC

0

1

2

3

4

5

6

7

8

9

10

12

15

TOTAL

AC

0

1

2

3

4

5

6

7

8

9

10

12

15

TOTAL

AC

0

1

2

3

4

5

6

P C - H U S CAN

INVENTORY REPORT FOR MU

UNSTOCKED

ACRES

0.

ACRES

15089.

33311.

53333.

136599.

197271.

84312.

48068.

21413.

22573.

8316.

8574.

17384.

40733.

686976.

ACRES

15089.

33311.

53333.

136599.

197271.

84312.

48068.

21413.

22573.

8316.

8574.

17384.

40733.

686976.

ACRES

30177.

44415.

42667.

54640.

12/ 3/1990 11 : 7:45 PAGE 5

t 13102000 FI-DOUG-FIR--MS

TOTAL

MANAGED

ACRES

1508547.

HI 1 TOTAL

CF/A

49.

256.

1825.

3191.

5138.

5307.

6993.

10229.

12198.

11562.

3283.

12210.

7188.

Ml 1 SL

CF/A

49.

256.

1825.

3191.

5138.

5307.

6993.

10229.

12198.

11562.

3283.

12210.

7188.

MI 3

CF/A

49.

256.

1125.

3188.

MCF

739.4

8514.3

97343.4

435860.1

1013618.0

447401.6

336125.1

219037.9

275354.5

96149.6

28148.4

212250.0

292797.0

3463339.0

1

MCF

739.4

8514.3

97343.4

435860.1

1013618.0

447401.6

336125.1

219037.9

275354.5

96149.6

28148.4

212250.0

292797.0

3463339.0

MCF

1478.7

11352.5

48000.4

174203.3

TOTAL

MANAGED

VOLUME

4446749.

ACRES

60355.

22208.

21333.

13660.

117556.

ACRES

ACRES

165976.

99934.

74667.

54640.

23208.

9368.

5341.

CROSS

CHECK

ACRES

1508547.

MI 2

CF/A

49.

256.

904.

2863.

*

MI 1 SL 2

CF/A

MI 4

CF/A

49.

256.

1122.

3435.

6239.

6525.

8155.

MCF

2957.4

5676.4

19285.0

39104.5

67023.3

MCF

MCF

8132.8

25543.1

83776.4

187661.1

144794.7

61128.1

43553.7

ACRES

ACRES

30177.

22208.

21333.

13660.

11604.

-

MI 1 SL 3

CF/A

MI 5

CF/A

49.

256.

1125.

3435.

4196.

MCF

MCF

1478.7

5676.4

23999.6

46915.3

48691.5

Example 2. Flle-LIST.HU

Appendix G 125
P C - H U S C A N 12/ 3/1990 1 1 : 7:45 PAGE 6

TOTAL 171899. 235034.8 433134. 554589.9 98982. 126761.5

Example 2. File-LIST.HU

Note: This page reflects what the user will find in the file or receive from the printer.

126 Appendix G
P C - H U S C A N 1 2 / 3/1990 1 1 : 7:45 PAGE 7

STOCKING RATIO REPORT FOR MU 13102000 FI-DOUG-FIR--MS

AC MI1 SL1 MI1 SL2 MI1 SL3 MI1 ALL MI2 MI3 MI4 MI5

ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

MU-

.760

.577

1.027

.868

.873

.648

.671

.822

.858

.727

.188

.597

.290

23202000-

.760

.577

1.027

.868

.873

.648

.671

.822

.858

.727

.188

1.000

.577

1.000

.880

1.000

.577

1.003

.880

1.000

.577

.997

.880

.884

.663

.683

1.000

.577

1.000

.876

.718

.597

.290

Example 2. File-LIST.HU

Appendix G 127
P C - H U S C A N 1 2 / 3/1990 1 1 : 7:45 PAGE 8

INVENTORY REPORT FOR HU 23202000 FI-W.HEMLOCK-MS

AC

0

1

2

3

4

5

6

7

14

15

17

TOTAL

AC

0

1

2

3

4

5

6

7

14

15

17

TOTAL

AC

0

1

2

3

TOTAL

UNSTOCKED

ACRES

0.

ACRES

49877.

34602.

37024.

60080.

76243.

52382.

15419.

24675.

4968.

13245.

9068.

377583.

ACRES

49877.

34602.

37024.

60080.

76243.

52382.

15419.

24675.

4968.

13245.

9068.

377583.

ACRES

74815.

51902.

55535.

25749.

208001.

TOTAL

MANAGED

ACRES

585584.

MI 1 TOTAL

CF/A

400.

758.

2606.

4915.

4581.

6988.

10432.

9601.

9802.

11898.

10574.

MI 1 SL

CF/A

400.

758.

2606.

4915.

4581.

6988.

10432.

9601.

9802.

11898.

10574.

MI 3

CF/A

400.

583.

1200.

5179.

MCF

19950.8

26214.5

96491.9

295311.2

349276.8

366050.7

160843.3

236909.6

48696.3

157593.0

95885.0

1853223.0

1

MCF

19950.8

26214.5

96491.9

295311.2

349276.8

366050.7

160843.3

236909.6

48696.3

157593.0

95885.0

1853223.0

MCF

29926.0

30279.6

66642.0

133346.4

260194.0

TOTAL

MANAGED

VOLUME

2113417.

ACRES

ACRES

ACRES

CROSS

CHECK

ACRES

585584

MI 2

CF/A

MI 1 SL

CF/A

MI 4

CF/A

MCF

MCF ACRES

MI 1 SL 3

CF/A MCF

MCF ACRES

MI 5

CF/A MCF

128 Appendix Q

Example 2. File-LIST.HU
P C - H U S C A N 1 2 / 3/1990 1 1 : 7:45 PAGE 9

STOCKING RATIO REPORT FOR MU 23202000 FI-U.HEMLOCK-MS

AC MI1 SL1 MI1 SL2 MI1 SL3 MI1 ALL MI2 MI3 MI4 MI5

ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO

.720 1.000

1.112 .857

1.127 .833

1.068 1.085

.591

.669

.816

.648

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

.720

1.112

1.127

1.068

.591

.669

.816

.648

.414

.488

.417

.414

.488

.417

No errors found combining IUs and MUs

Example 2. File~LIST.HU

Appendix G 129
Example 2. File-LIST.HU

130 Appendix G

P

RECORD

23

24

25

26

27

28

29

30

31

32

C - H U S C A N 12/ 3/199C

CT*A**I*AOP*********-----*****-

H002

H102

H202

H302

H602

H602

H602

H602

H602

H802

3 0

1

2

3

4

5

7

0 10 RECORDS READ FOR HU

0 COMMENT RECORDS (NOT

10 ACTIVE RECORDS

INFORMATION PAST COLUMN 80

I 1 1 : 7:45

Harvest Unit #2 PNUW

EXAMPLE 2

13452000

288.745

GROW/NORM

10

318.288

YLDS

N/A

N/A

N/A

N/A

RED ALDER

NUMBER 02

PROCESSED)

IS NOT PROCESSED

PAGE 10

.._ _.*****.....*****...._*****..

F o r e s t I n d u s t r y Red Alder

5 2.0 0.1

393.889 95.616 49.004

2

1.9

51.212
P C - H U S C A M 1 2 / 3 / 1 9 9 0 1 1 : 7:45 PAGE 1 1

SIMULATION SETUP FOR EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

HU 2 H a r v e s t U n i t #2 PNWW F o r e s t Industry Red Alder

CARD TYPE

H1 HU LABEL EXAMPLE 2

PERIOD LENGTH IN YEARS 10

SIMULATION LENGTH IN PERIODS 5

MAXIMUM STOCKING PERMITTED 2.0000

EXPECTED STOCKING RANGE .1000 1.9000

H2 MUS WITHIN THIS HU

13452000

H3 COMBINED FINAL HARVEST REQUEST FOR THIS HU

H4

H6

H8

PD

VOL

COMBINED

PD

VOL

MANAGEMENT

0 1

288.7 318.3

PARTIAL CUTTING REQUEST

0 1

INTENSIFICATION LABELS

MI

1

2

3

4

5

SPECIES LABEL AND REPORT GROUP

SPECIES

7

393.

FOR THIS HU

REPORT GROUP

HARDWOOD

2

.9

2

3

95.6

3

LABEL

GROW/NORM

LABEL

RED

YLDS

N/A

N/A

N/A

N/A

ALDER

4

49.0

4

5

51.2

5

No errors in HU Card Types H1 to H8

Example 2. File-LIST.HU

Appendix G 131
MU- 13452000-

Example2. File-LIST.HU

Note: This page reflects what the user will find in the file or receive from the printer.

132 Appendix G
P C - H U S C A N 1 2 / 3/1990 1 1 : 7:45 PAGE 1 2

INVENTORY REPORT FOR MU 13452000 FI-RED ALDER-MS

TOTAL

c

0

1

2

3

4

5

6

7

9

1

AC

0

1

2

3

4

5

6

7

9

\L

UNSTOCKED

ACRES

0.

ACRES

16778.

16918.

91121.

58522.

86759.

30040.

6197.

14069.

4831.

325235.

ACRES

16778.

16918.

91121.

58522.

86759.

30040.

6197.

14069.

4831.

325235.

TOTAL

MANAGED

ACRES

325235.

HI 1 TOTAL

CF/A

1541.

538.

2569.

2590.

4251.

6252.

1781.

3753.

5681.

MI 1 SL

CF/A

1541.

538.

2569.

2590.

4251.

6252.

1781.

3753.

5681.

MCF

25849.9

9093.4

234099.0

151566.1

368838.5

187810.1

11036.9

52801.0

27444.9

1068540.0

. 1

MCF

25849.9

9093.4

234099.0

151566.1

368838.5

187810.1

11036.9

52801.0

27444.9

1068540.0

TOTAL

MANAGED

VOLUME

1068540.

ACRES

ACRES

CROSS

CHECK

ACRES

325235

MI 2

CF/A

MI 1 SL

CF/A

MCF

MCF ACRES

MI 1 SL 3

CF/A MCF

Example 2. Flle-LIST.HU

Appendix G 133
P C - H U S C A N 1 2 / 3 / 1 9 9 0 1 1 : 7 : 4 5 PAGE 1 3

STOCKING RATIO REPORT FOR MU 13452000 FI-RED ALDER-MS

AC MI 1 SL1 MI 1 SL2 MI 1 SL3 MI 1 ALL MI2 MI3 MI4 MI5

ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO ER SRATIO

.600

.320

.844

.548

.659

.777

.188

.350

.430

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

.600

.320

.844

.548

.659

.777

.188

.350

.430

No errors found combining IUs and MUs

No errors found.

Example 2. FILE~LIST.HU

134 Appendix Q
ATLAS TREE FOR

EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

12/ 3/1990 11: 7:45

HARVEST UNIT EXAMPLE 2 CONTAINS

MANAGEMENT UNIT FI-DOUG-FIR--MS

IU 13102 .000 UNS M AC

TOTAL MU .000 UNS M AC

MANAGEMENT UNIT FI-W.HEMLOCK-MS

IU 13202 .000 UNS M AC

TOTAL MU .000 UNS M AC

TOTAL HU .000 UNS M AC

1508.547 REG M AC

1508.547 REG M AC

585.584 REG M AC

585.584 REG M AC

2094.131 REG M AC

4446.749000 VOL MMCF

4446.748000 VOL MMCF

2113.417000 VOL MMCF

2113.417000 VOL MMCF

6560.166000 VOL MMCF

HARVEST UNIT EXAMPLE 2 CONTAINS

MANAGEMENT UNIT FI-RED ALDER-MS

IU 13452 .000 UNS M AC

TOTAL MU .000 UNS M AC

TOTAL HU .000 UNS M AC

325.235 REG M AC

325.235 REG M AC

325.235 REG M AC

1068.540000 VOL MMCF

1068.540000 VOL MMCF

1068.540000 VOL MMCF

Example 2. Flle-TREE

Appendix G 135
P C - A T L A S

Run on 1/29/1991

EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest,

at 13:13:27

Period 0

HU 1 EXAMPLE 2 Reports 0 1

Harvest Unit #1 PNWW Forest Industry Douglas-fir/Hemlock

HU 2 EXAMPLE 2 Reports 0 1

Harvest Unit #2 PNUW Forest Industry Red Alder

Period 1

HU 1 EXAMPLE 2 Reports 0 0

Harvest Unit #1 PNWW Forest Industry DougIas-fir/Hemlock

HU 2 EXAMPLE 2 Reports 0 0

Harvest Unit #2 PNWW Forest Industry Red Alder

Period 2

HU 1 EXAMPLE 2 Reports 0 0

Harvest Unit #1 PNWW Forest Industry DougIas-fir/Hemlock

HU 2 EXAMPLE 2 Reports 0 0

Harvest Unit #2 PNWW Forest Industry Red Alder

Period 3

HU 1 EXAMPLE 2 Reports 0 0

Harvest Unit #1 PNWW Forest Industry DougIas-fir/Hemlock

Warning Error in APPORT during period 3 year 2010 for HU

Req 3687.966 Exog

Prop 1.000

during period 3 year 2010 for HU

2379.639 for harvest request

during period 3 year 2010 for HU

1308.323 for harvest request

Reports 0 0

Avail 3687.963

Total 3731.747

Uarning Error in APPORT

I n s u f f i c i e n t volume

Uarning Error in APPORT

I n s u f f i c i e n t volume

HU 2 EXAMPLE 2

1 EXAMPLE 2

43.781

f i n a l harvest

1 EXAMPLE 2

2379.642

1 EXAMPLE 2

1308.325

HU 13102000 FI-DOUG-FIR--MS

HU 23202000 FI-U.HEMLOCK-MS

Harvest Unit #2 PNWW Forest Industry Red Alder

Period 4

HU 1 EXAMPLE 2 Reports 0 0

Harvest Unit #1 PNWW Forest Industry DougIas-fir/Hemlock

HU 2 EXAMPLE 2 Reports 0 0

Harvest Unit #2 PNWW Forest Industry Red Alder

Period 5

HU 1 EXAMPLE 2 Reports 1 0

Harvest Unit #1 PNWW Forest Industry DougIas-fir/Hemlock

HU 2 EXAMPLE 2 Reports 1 0

Harvest Unit #2 PNWW Forest Industry Red Alder

Normal exit from PC-ATLAS

Example 2. File-ATLOG

136 Appendix G
PC - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Pd

0

1

2

3

4

5

6

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Harvest Unit 1

Year

1980

1990

2000

2010

2020

2030

2040

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

EXAMPLE 2

Inventory at !

Acres

2.

2.

2.

2.

2.

2.

2.

094

148

338

457

504

487

451

SW Inv

6086.889

6670.172

6440.310

5846.601

5957.134

6283.793

7519.079

Thinning and

Acres

0.

0.

0.

0.

0.

0.

014

021

022

030

020

047

SW Thin

18.211

28.440

29.606

40.230

27.295

63.155

start

HW

473.

486.

402.

383.

414.

461.

527.

Final

Harvest U n i t #1

of p e r i o d .

Inv

276

411

892

450

416

440

037

Com

6560.

7156.

6843.

6230.

6371.

6745.

8046.

Harvest.

HW Thin

1.

2.

2.

3.

2.

5.

P a r t i a l C u t t i n g a n d

Acres

0.

0.

0.

0.

0.

0.

SU

3219,

3382,

3639

3625

3870

4306

000

000

.000

.000

.000

.000

SW PC

0.000

0.000

0.000

0.000

0.000

0.000

Growth, Area

Gro

.257

.981

.849

.965

.353

.771

HW Gro

218.228

192.245

216.826

223.525

265.382

276.126

Inventory at

Acres

2

2

2

2

2

2

.148

.338

.457

.504

.487

.451

SW Inv

6670.172

6440.310

5846.601

5957.134

6283.793

7519.079

607

510

613

551

409

574

Area

Inv

166

584

202

051

550

232

115

Com T h i n

19.

30.

32.

43.

29.

68.

818

950

219

781

704

729

Total Harvest.

HW PC

0.

0.

0.

0.

0.

0.

Gain,

Com

,000

.000

,000

.000

,000

.000

and

Gro

3437.485

3575

3856

3849

4135

4582

.226

.675

.490

.735

.896

Con

0.

0.

0.

0.

0.

0.

t PC

000

000

,000

,000

,000

,000

I PNWW Forest Industry Douglas-fir/Hemlock

Loss, anc

AvD Inv

8.636

8.659

7.437

6.991

7.182

7.568

8.267

Acres

0.268

0.450

0.455

0.422

0.415

0.342

AvD PC

0.000

0.000

0.000

0.000

0.000

0.000

I Volume Recovered from area loss.

Acres

0.000

0.000

0.000

0.000

0.017

0.036

SW FH

2643.222

3675.215

4260.273

3497.096

3468.450

2899.871

Com Req

0.000

0.000

0.000

0.000

0.000

0.000

Gain Adjusted f o r growth.

Acres

0,

0,

0,

0,

0,

0

end of p e r i o d ,

HW

486

402

383

414

461

527

Inventory Identity

Acres

2

2

2

2

2

2

.148

.338

.457

.504

.487

.451

SW Inv

6670.173

6440.309

5846.601

5957.134

6283.683

7518.548

HW

486

402

383

414

Inv

.411

.892

.450

.416

.440

.037

Inv

.411

.892

.450

.416

461.430

526.990

Com

7156

6843

6230

6371

6745

8046

Com

7156

6843

6230

6371

6745

8045

.054

.190

.119

.047

.000

.000

SW Gain

36.190

129.119

80.062

31.111

0.000

0.000

HW Gain

2.996

10.490

6.613

2.639

0.000

0.000

SW Loss

0.000

0.000

0.000

0.000

48.058

108.989

HW FH

205.595

280.635

238.308

190.866

212.541

196.931

Com Dif

0.000

0.000

0.000

0.000

0.000

0.000

Com Gain

39.186

139.609

86.675

33.750

0.000

0.000

HW Loss

0.000

0.000

0.000

0.000

3.418

8.071

Com FH

2848.817

3955.850

4498.582

3687.963

3680.991

3096.802

SW Har

2661.433

3703.655

4289.880

3537.327

3531.789

3044.768

SW Adj 25.460

90.810

56.322

21.895

0.000

0.000

Com Loss

O.i

0.

0.

0.

51.

117.

AvD

19.

15.

14.

13.

13.

13.

HW

207.

283.

240.

194.

217.

208.

HW

2,

7,

4,

1,

0

0

Jnstocked and Regeneration Acres, and BF/CF Ratios

Inv

.584

.202

.051

.550

.232

.115

Inv

.584

.201

.051

.550

.114

.538

AvD Inv

8.659

7.437

6.991

7.182

7.568

8.267

Acres

0.000

0.000

0.000

0.000

0.000

0.000

Un End

0.000

0.000

0.000

0.000

0.000

0.000

SU Dif

-0.001

0.001

0.000

0.000

0.109

0.530

Un Sta

0.000

0.000

0.000

0.000

0.000

0.000

HU Dif

0.000

0.000

0.000

0.000

0.010

0.047

Reg en 0.295

0.545

0.515

0.445

0.415

0.342

Con Dif

0.000

0.001

0.000

0.000

0.118

0.577

000

000

000

000

476

060

FH

163

447

486

898

459

912

Har

202

,145

,921

,417

,513

,558

Adj

.109

.380

.654

.858

.000

.000

for

Reg Ad

0

0

0

0

0

0

SU

2763

2722

2899

3027

3279

3793

.268

.450

.455

.422

.415

.342

Gro

.577

.082

.216

.613

.851

.430

SW I

0.

0.

0.

0.

36.

81.

Com

2868.

3986.

Rec

000

000

000

000

044

742

Req

635

800

4530.801

3731.

3749.

747

302

3253.326

Com

2868.

3986.

4530.

3731.

3749.

3253.

Com

27,

98,

60

23

0

0

Har

635

,800

,801

,744

,302

.326

Adj

.569

.191

.976

.753

.000

.000

Inventory

Inv

0

0

0

0

0

0

HU

182

141

173

189

228

24G

Rat

.000

.000

.000

.000

.000

.000

Gro

.373

.158

.952

.623,

1.114

I.333

HW Rec

0.000

0.000

0.000

0.000

2.563

6.053

Com Dif

0.000

0.000

0.000

-0.003

0.000

0.000

and Harvest

Har Rat

0.000

0.000

0.000

0.000

0.000

0.000

Com Gro

2945.951

2863.240

3073.168

3217.235

3507.965

4033.764

Com

0.

0.

0.

0.

38.

87.

Rec

000

000

000

000

607

795

Example 2. File-ATLIST

Appendix G 137
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry DougIas-fir/Hemlock

Available Softwood Final Harvest Volume.

Pd Year 1 2 3

0 1980 2450.125 0.000 1194.847 3644.972

1 1990 3333.205 0.000 1275.172 4608.376

2 2000 3248.158 0.000 1620.927 4869.084

3 2010 2216.698 0.000 1280.399 3497.097

4 2020 2223.419 0.000 1245.032 3468.451

5 2030 2135.888 0.000 1045.731 3181.620

Available Hardwood Final Harvest Volume.

Pd Year 1 2 3

0 1980 216.242 0.000 67.271 283.513

1 1990 270.623 0.000 55.527 326.150

2 2000 226.150 0.000 42.010 268.161

3 2010 162.942 0.000 27.925 190.866

4 2020 186.085 0.000 26.455 212.541

5 2030 181.676 0.000 30.735 212.411

Forest (Species) Type.

1 DOUGLAS-FIR

2 NO SPECIES 2

3 PURE HEMLOCK

Example 2. Flle-ATLIST

138 Appendix G
Pd

0

1

2

3

4

5

6

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

P C - A T L

Run on 12/

Harvest

Year

1980

1990

2000

2010

2020

2030

2040

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Unit 2

A S EXAMPLE

3/1990 11:: 7:49

EXAMPLE 2

Inventory at

Acres

0.325

0.308

0.254

0.205

0.173

0.172

0.169

SW Inv

331.354

347.905

325.199

257.709

275.404

322.889

369.446

.Thinning and

Acres

0.000

0.000

0.000

0.000

0.000

0.000

SW Thin

0.000

0.000

0.000

0.000

0.000

0.000

start

HW

737.

774.

723.

573.

612.

718.

821.

Final

2 Simulation -

Using RAF

Harvest Unit Mi

of period. Area

Inv

186

008

491

341

709

352

931

Com Inv

1068.540

1121.913

1048.690

831.050

888.113

1041.240

1191.377

Harvest.

HW Thin

0.

0.

0.

0.

0.

0.

000

000

000

000

,000

,000

Com Thin

0.000

0.000

0.000

0.000

0.000

0.000

P a r t i a l Cutting and Total Harvest.

Acres

0.000

0.000

0.000

0.000

0.000

0.000

SW PC

0.000

0.000

0.000

0.000

0.000

0.000

Growth, Area

SW Gro

116.741

112.989

92.704

71.744

63.646

65.854

HW Gro

259.721

251.374

206.244

159.613

141.599

146.510

Inventory at

Acres

0.308

0.254

0.205

0.173

0.172

0.169

SW Inv

347.905

325.199

257.709

275.404

322.889

369.446

HW PC

0.

0,

0,

0,

0,

0,

Gain,

Com

376

364

298

231

205

212

.000

.000

.000

.000

.000

.000

and

Gro

.461

.362

.948

.357

.245

.364

Com PC

0.000

0.000

0.000

0.000

0.000

0.000

PC-ATLAS

from 12/

Base Run 8-Extended

3/1990 11 : 7:45

Harvest.

! PNUU Forest Industry Red Alder

Loss, and

AvD Inv

13.271

12.908

13.706

13.354

14.938

15.109

15.299

Acres

0.043

0.027

0.033

0.002

0.005

0.004

AvD PC

0.000

0.000

0.000

0.000

0.000

0.000

Volume Recovered from area loss.

Acres

0.017

0.054

0.049

0.032

0.001

0.003

SW FH

78.890

61.707

84.096

5.252

14.231

12.465

Com Req

0.000

0.000

0.000

0.000

0.000

0.000

Gain Adjusted for growth.

Acres

0.000

0.000

0.000

0.000

0.000

0.000

SW Gain

0.000

0.000

0.000

0.000

0.000

0.000

HW Gain

0.000

0.000

0.000

0.000

0.000

0.000

SW Loss

21.299

73.989

76.098

48.796

1.931

6.831

HW FH

175.512

137.283

187.094

11.685

31.660

27.732

Com Dif

0.000

0.000

0.000

0.000

0.000

0.000

Com Gain

0.000

0.000

0.000

0.000

0.000

0.000

HW Loss i

47.386

164.607

169.300

108.560

4.296

15.198

Com FH

254.402

198.990

271.190

16.938

45.890

40.197

SW Har

89.540

98.701

122.145

29.651

15.196

15.881

SW Adj

0.000

0.000

0.000

0.000

0.000

0.000

Com Loss

68.686

238.596

245.398

157.356

6.227

22.030

AvD FH

16.431

16.326

18.600

17.000

17.000

17.000

HW Har

199.205

219.587

271.744

65.965

33.808

35.331

HW Adj

0.000

0.000

0.000

0.000

0.000

0.000

end of period, Unstocked and Regeneration Acres, and BF/CF Ratios for

HW

774

723

573

, 612

718

821

Inventory Identity

Acres

0.308

0.254

0.205

0.173

0.172

0.169

SW Inv

347.905

325.199

257.709

275.404

322.889

369.446

HW

774

723

573

612

71fi

821

Inv

.008

.491

.341

.709

.352

.931

f Inv .008

.491

1.341

!.7O9

(.352

.931

Com Inv

1121.913

1048.690

831.050

888.113

1041.240

1191.377

Com Inv

1121.913

1048.690

831.050

888.113

1041.240

1191.378

AvD Inv

12.908

13.706

13.354

14.938

15.109

15.299

Acres

0.000

0.000

0.000

0.000

0.000

0.000

Un End

0.000

0.000

0.000

0.000

0.000

0.000

SW Dif

0.000

0.000

0.000

0.000

0.000

0.000

Un Sta

0.000

0.000

0.000

0.000

0.000

0.000

HW Dif

0.000

0.000

0.000

0.000

0.000

0.000

Regen

0.043

0.027

0.033

0.002

0.005

0.004

Com Dif

0.000

0.000

0.000

0.000

0.000

0.000

Reg Ad

0.043

0.027

0.033

0.002

0.005

0.004

SW Gro

99.148

89.161

64.574

62.253

60.809

62.466

SW Rec

10.650

36.994

38.049

24.398

0.966

3.416

Com Req

288.745

318.288

393.889

95.616

49.004

51.212

Com Har

288.745

318.288

393.889

95.616

49.004

51.212

Com Adj

0.000

0.000

0.000

0.000

0.000

0.000

Inventory

Inv Rat

0.000

0.000

0.000

0.000

0.000

0.000

HW Gro

220.580

198.362

143.662

138.498

135.285

138.971

HW Rec

23.693

82.304

84.650

54.280

2.148

7.599

Com Dif

0.000

0.000

0.000

0.000

0.000

0.000

and Harvest

Har Rat

0.000

0.000

0.000

0.000

0.000

0.000

Com Gro

319.728

287.523

208.236

200.751

196.093

201.437

Com

34.

119.

122.

78.

3.

11.

Example 2. File-ATLIST

Appendix Q

Rec

343

298

699

678

114

015

139
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8- Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 1 1 : 7:45

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Harvest

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Unit 2 , EXAMPLE 2 Harvest Unit

Available Softwood Final

1

0.000

0.000

0.000

0.000

0.000

0.000

2

0.000

0.000

0.000

0.000

0.000

0.000

3

0.000

0.000

0.000

0.000

0.000

0.000

Available Hardwood Final

1

0.000

0.000

0.000

0.000

0.000

0.000

2

0.000

0.000

0.000

0.000

0.000

0.000

Forest (Species)

1

2

3

4

5

6

7

NO SPECIES

NO SPECIES

NO SPECIES

NO SPECIES

NO SPECIES

NO SPECIES

3

0.000

0.000

0.000

0.000

0.000

0.000

Type.

1

2

3

4

5

6

RED ALDER

Harvest

4

0.000

0.000

0.000

0.000

0.000

0.000

Harvest

4

0.000

0.000

0.000

0.000

0.000

0.000

#2 PNWW Forest

Volume.

5

0.000

0.000

0.000

0.000

0.000

0.000

Volume.

5

0.000

0.000

0.000

0.000

0.000

0.000

Industry Red Alder

6

0.000

0.000

0.000

0.000

0.000

0.000

6

0.000

0.000

0.000

0.000

0.000

0.000

7

230.805

228.070

289.954

226.208

276.040

340.160

7

513.487

507.401

645.080

503.259

614.124

756.777

230.805

228.070

289.954

226.208

276.040

340.160

513.487

507.401

645.080

503.259

614.124

756.777

Example 2. File - ATLIST

140 Appendix G
P C - A T L A S EXAMPLE 2 Simulation • PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry DougIas-fir/Hemlock

Period 5 Year 2030 Total over Management Intensities

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Req

Regen

MI

1

2

3

4

5

Acres

0.415

0.442

0.523

0.577

0.358

0.172

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

2.487

0.000

2.487

Acres

0.000

0.000

0.000

0.000

0.172

0.169

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.342

0.342

Acres

0.413

0.292

0.683

0.912

0.186

Inventory at start of period

SW Inv

0.000

204.515

586.015

2048.340

2193.562

1251.361

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

6283.793

Harvest

SW Har

0.000

2.654

7.627

89.861

1448.826

1495.800

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

3044.768

HW Inv

0.000

15.753

45.958

162.358

141.872

95.499

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

461.440

Com Inv

0.000

220.268

631.973

2210.697

2335.435

1346.859

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

6745.232

during period

HW Har

0.000

0.206

0.602

7.702

85.663

114.385

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

208.558

Com Har

0.000

2.860

8.229

97.563

1534.490

1610.185

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

3253.326

3253.326

Inventory at start of period

SW Inv

1772.079

914.395

1387.937

1865.942

343.439

HW Inv

124.996

80.702

60.746

164.684

30.311

Com Inv

1897.076

995.097

1448.683

2030.626

373.750

AvD Inv

7.568

FH Prop AvD Har 0.000

0.000

0.000

0.000

0.485

0.515

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.000 13.912

MI Identification

GROW/NORM YLDS

PLANT ONLY

PLANT AND PCT

FERT/GEN U/PCT

MI4 + COMM THIN

Acres

-0.006

-0.006

-0.008

-0.008

-0.005

-0.002

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-0.036

Growth

SW Gro

0.000

190.686

287.217

1304.781

1873.776

650.311

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

4306.771

during period

HW Gro

0.000

14.610

22.456

103.882

90.289

44.889

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

276.126

Com Gro

0.000

205.296

309.673

1408.663

1964.065

695.199

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

4582.896

Net Area Change

SU Net

0.000

-0.885

-2.542

-8.902

-9.514

-5.405

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-27.247

HU Net

0.000

-0.069

-0.201

-0.709

-0.624

-0.415

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-2.018

Com Net

0.000

-0.953

-2.743

-9.612

-10.138

-5.820

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-29.265

Example 2. File-ATHUR

Appendix G 141
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry DougIas-fir/Hemlock

Period 6 Year 2040 Total over Management Intensities

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

MI

1

2

3

4

5

Inventory at

Acres

0.342

0.409

0.436

0.515

0.569

0.180

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

2.451

0.000

2.451

SW Inv

0.000

190.095

487.078

1865.956

3595.436

1380.512

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

7519.079

Inventory at

Acres

0.322

0.299

0.713

0.929

0.189

SW Inv

1498.701

841.690

2124.937

2565.709

488.043

start of

HW Inv

0.000

14.563

37.845

147.776

230.768

96.085

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

527.037

start of

HW Inv

105.880

74.286

79.475

226.444

40.953

period

Com Inv

0.000

204.659

524.924

2013.732

3826.204

1476.597

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

8046.115

period

Com Inv

1604.580

915.975

2204.412

2792.152

528.996

AvD Inv

8.267

MI Identification GROW/NORM YLDS

PLANT ONLY

PLANT AND PCT

FERT/GEN U/PCT

MI4 + COMM THIN

Example 2. File-ATHUR

142 Appendix G
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 2 EXAMPLE 2 Harvest Unit #2 PNWW Forest Industry Red Alder

Period 5 Year 2030 Total over Management Intensities

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Req

Regen

MI

1

2

3

4

5

Acres

0.005

0.002

0.028

0.018

0.024

0.009

0.009

0.048

0.029

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.172

0.000

0.172

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.004

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.004

0.004

Acres

0.172

0.000

0.000

0.000

0.000

Inventory at start of period

SW Inv

0.000

0.597

17.889

18.996

35.842

16.914

15.105

143.816

73.730

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

322.889

Harvest

SW Har

0.000

0.006

0.189

0.201

0.379

0.179

0.160

1.521

13.245

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

15.881

Inventory at

SW Inv

322.889

0.000

0.000

0.000

0.000

HW Inv

0.000

1.328

39.799

42.261

79.740

37.629

33.606

319.956

164.033

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

718.352

Com Inv

0.000

1.925

57.688

61.257

115.582

54.543

48.711

463.772

237.763

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1041.240

during period

HW Har

0.000

0.014

0.421

0.447

0.844

0.398

0.355

3.385

29.467

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

35.331

: s t a r t of

HW Inv

718.352

0.000

0.000

0.000

0.000

Com Har

0.000

0.020

0.610

0.648

1.223

0.577

0.515

4.906

42.712

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

51.212

51.212

period

Com Inv

1041.240

0.000

0.000

0.000

0.000

AvD

15,

FH Prop AvD

0.

0.

0.

0.

0.

0.

0.

0.

1.

0.

0.

0,

0,

0

0

0

0

0

1

MI

000

,000

000

000

.000

.000

.000

,000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000 17

Inv

.109

Har

'.000

Identification

GROW/NORM YLDS

N/A

N/A

N/A

N/A

Acres

0.

0.

0.

0.

0.

0.

0.

-0.

-0.

0.

0.

0.

0,

0,

0,

0

0

0

-0

000

000

000

000

000

,000

,000

001

.001

.000

.000

.000

.000

.000

.000

.000

.000

.000

.003

Growth

SW Gro

0.000

1.529

0.603

11.100

7.986

10.330

3.253

3.160

19.833

8.061

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

65.854

during period

HW Gro

0.000

3.402

1.341

24.694

17.767

22.982

7.237

7.030

44.124

17.933

0.000

o.ooo

0.000

0.000

0.000

0.000

0.000

0.000

146.510

Net Area Change

SW Net

0.000

-0.006

-0.189

-0.201

-0.379

-0.179

-0.160

-1.521

-0.780

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-3.416

HW Net

0.000

-0.014

-0.421

-0.447

-0.844

-0.398

-0.355

-3.385

-1.735

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-7.599

Com Gro

0.000

4.931

1.944

35.794

25.752

33.313

10.490

10.189

63.957

25.993

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

212.364

Com Net

0.000

-0.020

-0.610

-0.648

-1.223

-0.577

-0.515

-4.906

-2.515

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-11.015

Example 2. File-ATHUR

Appendix Q 143
PC • A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 2 EXAMPLE 2 Harvest Unit #2 PNWW Forest Industry Red Alder

Period 6 Year 2040 Total over Management Intensities

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

MI

1

2

3

4

5

1

Acres

0.004

0.005

0.002

0.028

0.018

0.024

0.009

0.009

0.047

0.024

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.169

0.000

0.169

Acres

0.169

0.000

0.000

0.000

0.000

Inventory at

SW

0.

1.

1.

28.

26.

45.

19.

17.

158.

70.

0.

0.

0.

0.

0.

0,

0.

0.

369,

Inv

000

527

123

606

517

484

,816

,467

,678

,229

.000

.000

.000

.000

.000

.000

.000

.000

.446

Inventory at

SW

369

0

0

0

0

Inv

.446

.000

.000

.000

.000

start of

HW Inv

0.000

3.397

2.498

63.642

58.994

101.191

44.085

38.860

353.021

156.242

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

821.931

start of

HW Inv

821.931

0.000

0.000

0.000

0.000

period

Com Inv

0.000

4.924

3.621

92.248

85.511

146.676

63.901

56.328

511.699

226.471

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1191.377

period

Com Inv

1191.377

0.000

0.000

0.000

0.000

AvD Inv

15.299

MI Identification

GROW/NORM YLDS

N/A

N/A

N/A

N/A

Example 2. File-ATHUR

144 Appendix G
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry Douglas-fir/Hemlock

Period 0 Year 1980 Management Unit 1 F1-D0UG-FIR--MS Total over Management Intensities

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Req

Regen

MI

1

2

3

4

5

Acres

0.302

0.222

0.213

0.273

0.232

0.094

0.053

0.021

0.023

0.008

0.009

0.000

0.017

0.000

0.000

0.041

0.000

0.000

1.509

0.000

1.509

Acres

0.000

0.000

0.000

0.000

0.000

0.018

0.053

0.021

0.023

0.008

0.009

0.000

0.017

0.000

0.000

0.041

0.000

0.000

0.190

0.213

Inventory a t s t a r t o t

SW

13.

52.

250.

812.

1109.

467.

348.

201.

253.

88.

25.

0.

195.

0.

0.

269.

0.

0.

4086.

Inv

588

159

313

073

208

288

887

274

023

352

866

000

036

000

000

051

000

000

,117

Harvest

SW

0.

0,

0,

18

0,

106

421

243

305

106

31

0

235

0

0

325

0

0

1794

Har

.000

.000

.000

.211

.000

.535

.804

.340

.905

.817

.272

.000

.799

.000

.000

.283

.000

.000

.966

I n v e n t o r y at

Acres

0.687

0.118

0.172

0.433

0.099

SW

3182

61

215

509

116

I Inv

.462

.588

i.973

•.613

..481

HW Inv

1.199

4.603

22.092

71.672

97.896

41.242

30.792

17.764

22.331

7.798

2.283

0.000

17.213

0.000

0.000

23.746

0.000

0.000

360.631

Com

14.

56.

272.

883.

1207.

508.

379.

219.

275.

96.

28.

0.

212.

0.

0.

292.

0.

0.

4446.

d u r i n g period

HW Har

0.000

0.000

0.000

1.607

0.000

9.403

37.227

21.477

26.998

9.427

2.760

0.000

20.811

o.ooo

0.000

28.709

0.000

0.000

158.420

s t a r t of

HW Inv

280.877

5.436

19.061

44.977

10.280

Com

0

0

0

19

0

115

459

264

332

116

34

0

256

0

0

353

0

0

1953

1953

period

Inv

787

763

405

744

104

530

679

038

354

150

148

000

250

,000

000

,797

,000

,000

,748

Har

.000

.000

.000

.818

.000

.938

.032

.817

.904

.245

.031

.000

.610

.000

.000

.992

.000

.000

.386

.386

:

 period

Con

3462

67

235

554

126

i Inv

1.339

'.023

i.O35

.590

>.761

AvD Inv

8.753

FH Prop AvD Har

0.

0.

0.

0.

0.

0.

0.

0.

0,

0,

0,

0

0

0

0

0

0

0

1

MI

,000

,000

,000

,000

,000

.060

.237

.137

.172

.060

.018

.000

.133

.000

.000

.183

.000

.000

.000 18.330

Identification

GROW/NORM YLOS

PLANT ONLY

PLANT AND PCT

FERT/GEN U/PCT

MI4 + COMM THIN

Acres

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0,

0,

0

0

0

0

0

0

0

023

012

006

003

003

,000

,000

,000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.046

Growth during period

SW Gro

0.000

109.726

102.238

489.779

593.532

486.423

199.354

42.066

52.882

18.466

5.406

0.000

40.763

0.000

0.000

56.232

0.000

0.000

2196.865

HW Gro

0.000

9.684

9.023

43.227

38.734

37.095

17.595

3.713

4.667

1.630

0.477

0.000

3.598

0.000

0.000

4.963

0.000

0.000

174.405

Com Gro

0.000

119.410

111.261

533.006

632.266

523.518

216.948

45.779

57.549

20.095

5.883

0.000

44.360

0.000

0.000

61.195

0.000

0.000

2371.271

Net Area Change

SW Net

0.000

3.593

7.206

7.754

11.453

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

30.005

HW Net

0.000

0.317

0.636

0.684

1.011

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

2.648

Com Net

0.000

3.910

7.842

8.438

12.464

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

32.654

Example 2. File-ATMUR

Appendix G 145
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry Douglas-fir/Hemlock

Period 0 Year 1980 Management Unit 1 FI-DOUG-FIR--MS Management Intensity 1 GROW / NORM YLDS

Example 2. File-ATMUR

146 Appendix G

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Regen

Acres

0.015

0.033

0.053

0.137

0.197

0.084

0.048

0.021

0.023

0.008

0.009

0.000

0.017

0.000

0.000

0.041

0.000

0.000

0.687

Acres

0.000

0.000

0.000

0.000

0.000

0.016

0.048

0.021

0.023

0.008

0.009

0.000

0.017

0.000

0.000

0.041

0.000

0.000

0.183

0.010

Inventory at start of period

SW Inv

0.679

7.824

89.449

400.512

931.414

411.117

308.865

201.274

253.023

88.352

25.866

0.000

195.036

0.000

0.000

269.051

0.000

0.000

3182.462

Harvest

SW Har

0.000

0.000

0.000

0.000

0.000

93.729

373.418

243.340

305.905

106.817

31.272

0.000

235.799

0.000

0.000

325.283

0.000

0.000

1715.563

HW Inv

0.060

0.691

7.895

35.348

82.204

36.284

27.260

17.764

22.331

7.798

2.283

0.000

17.213

0.000

0.000

23.746

0.000

0.000

280.877

Com Inv

0.739

8.514

97.343

435.860

1013.618

447.402

336.125

219.038

275.354

96.150

28.148

0.000

212.250

0.000

0.000

292.797

0.000

0.000

3463.339

: during period

HW Har

0.000

0.000

0.000

0.000

0.000

8.272

32.957

21.477

26.998

9.427

2.760

0.000

20.811

0.000

0.000

28.709

0.000

0.000

151.412

Com Har

0.000

0.000

0.000

0.000

0.000

102.001

406.375

264.817

332.904

116.245

34.031

0.000

256.610

0.000

0.000

353.992

0.000

0.000

1866.975

FH Prop

0.000

0.000

0.000

0.000

0.000

0.053

0.210

0.137

0.172

0.060

0.018

0.000

0.133

0.000

0.000

0.183

0.000

0.000

0.966

AvD

13.

AvD

18

Inv

176

Har

.388

Acres

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

023

012

006

003

003

000

000

000

000

000

000

000

000

000

000

000

000

000

046

Growth during

SW Gro

0.000

5.933

28.597

97.220

252.434

399.409

178.419

42.066

52.882

18.466

5.406

0.000

40.763

0.000

0.000

56.232

0.000

0.000

1177.825

HW Gro

0.000

0.524

2.524

8.580

22.279

35.251

15.747

3.713

4.667

1.630

0.477

0.000

3.598

0.000

0.000

4.963

0.000

0.000

103.952

period

Com Gro

0.000

6.456

31.121

105.801

274.713

434.660

194.166

45.779

57.549

20.095

5.883

0.000

44.360

0.000

0.000

61.195

0.000

0.000

1281.777

Net Area Change

SW Net

0.000

3.593

7.206

7.754

11.453

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

30.005

HW Net

0.000

0.317

0.636

0.684

1.011

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

2.648

Com Net

0.000

3.910

7.842

8.438

12.464

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

32.654
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry Douglas-fir/Hemlock

Period 0 Year 1980 Management Unit 1 FI-DOUG-FIR--MS Management Intensity 2 PLANT ONLY

Example 2. File-ATMUR

Appendix G 147

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Reg en

Acres

0.060

0.022

0.021

0.014

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.118

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.041

Inventory at start

SW Inv

2.718

5.216

17.721

35.933

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

61.588

Harvest

SW Har

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

HW Inv

0.240

0.460

1.564

3.171

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

5.436

: of period

Com Inv

2.957

5.676

19.285

39.104

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

67.023

during period

HW Har

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Har

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

AvD Inv

3.397

FH Prop AvD Har 0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000 0.000

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Growth

SW Gro

0.000

21.851

6.208

46.067

27.490

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

101.617

during period

HW Gro

0.000

1.929

0.548

4.066

2.426

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

8.968

Net Area Change

SW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

HW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Gro

0.000

23.780

6.756

50.133

29.917

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

110.585

Com Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry Douglas-fir/Hemlock

Period 0 Year 1980 Management Unit 1 FI-DOUG-FIR--MS Management Intensity 3 PLANT AND PCT

148 Appendix G

Example 2. File-ATMUR

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Regen

Acres

0.030

0.044

0.043

0.055

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.172

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.021

Inventory at s t a r t of period

SW Inv

1.359

10.432

44.108

160.075

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

215.973

Harvest

SW Har

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

HW Inv

0.120

0.921

3.893

14.128

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

, 0.000

19.061

Com Inv

1.479

11.352

48.000

174.203

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

235.035

during period

HW Har

o.ooo 0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Har

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

FH I

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Prop

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

AvD Inv

6.347

AvD Har

0.000

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Growth

SW Gro

0.000

10.925

17.926

98.319

132.891

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

260.062

during period

HW Gro

0.000

0.964

1.582

8.677

-1.921

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

9.303

Com Gro

0.000

11.890

19.508

106.997

130.970

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

269.365

Net Area Change

SW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

HW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry Douglas-fir/Hemlock

Period 0 Year 1980 Management Unit 1 FI-DOUG-FIR--MS Management Intensity 4 FERT/GEN W/PCT

Example 2. File-ATMUR

Appendix G 149

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Regen

Acres

0.166

0.100

0.075

0.055

0.023

0.009

0.005

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.433

Acres

0.000

0.000

0.000

0.000

0.000

0.002

0.005

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.007

0.121

Inventory at start of

SW Inv

7.473

23.472

76.982

172.442

133.052

56.171

40.022

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

509.613

Harvest

SW Har

0.000

0.000

0.000

0.000

0.000

12.806

48.386

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

61.192

HW Inv

0.660

2.072

6.794

15.219

11.743

4.957

3.532

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

44.977

Com

8.

25.

83.

187.

144.

61.

43.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

554.

during period

HW Har

0.000

0.000

0.000

0.000

0.000

1.130

4.270

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

5.401

Com

0.

0,

0,

0,

0,

13

52

0

0

0

0

0

0

0

0

0

0

0

66

period

Inv

133

543

776

661

795

128

554

000

000

000

000

.000

000

,000

000

,000

,000

,000

.590

Har

.000

.000

.000

.000

.000

.936

.656

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.593

FH Prop

0.000

0.000

0.000

0.000

0.000

0.007

0.027

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.034

AvD Inv

4.867

AvD Har

16.853

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Growth

SUWGro

0.000

60.091

40.505

190.234

143.576

57.093

20.935

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

512.434

during period

HW Gro

0.000

5.303

3.575

16.790

12.672

5.039

1.848

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

45.226

Com Gro

0.000

65.395

44.080

207.024

156.247

62.132

22.783

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

557.660

Net Area Change

SW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

HW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000 ' 0.000

0.000
PC - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry Douglas-fir/Hemlock

Period 0 Year 1980 Management Unit 1 FI-DOUG-FIR--MS Management Intensity 5 MI4 + COMM THIN

Example 2. Flle-ATMUR

150 Appendix G

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Regen

Acres

0.030

0.022

0.021

0.014

0.012

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.099

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.021

Inventory at start of period

SW Inv

1.359

5.216

22.053

43.110

44.743

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

116.481

Harvest

SW Har

0.000

0.000

0.000

18.211

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

18.211

HW Inv

0.120

0.460

1.946

3.805

3.949

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

10.280

Com Inv

1.479

5.676

24.000

46.915

48.692

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

126.761

during period

HW Har

0.000

0.000

0.000

1.607

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.607

Com Har

0.000

0.000

0.000

19.818

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

19.818

FH Prop

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

AvD Inv

5.594

AvD Har

0.000

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Growth

SW Gro

0.000

10.925

9.001

57.938

37.142

29.921

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

144.928

during period

HW Gro

0.000

0.964

0.794

5.113

3.278

-3.195

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

6.956

Com Gro

0.000

11.890

9.796

63.052

40.420

26.727

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

151.883

Net Area Change

SW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

HW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000
p c - A T L A s EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry Douglas-fir/Hemlock

Period 0 Year 1980 Management Unit 2 FI-W .HEMLOCK-MS Total over Management Intensities

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Req

Regen

HI

1

2

3

4

5

Acres

0.125

0.087

0.093

0.086

0.076

0.052

0.015

0.025

0.000

0.000

0.000

0.000

0.000

0.000

0.005

0.013

0.000

0.009

0.586

0.000

0.586

Acres

0.000

0.000

0.000

0.000

0.000

0.010

0.015

0.025

0.000

0.000

0.000

0.000

0.000

0.000

0.005

0.013

0.000

0.009

0.078

0.082

Acres

0.378

0.000

0.208

0.000

0.000

Inventory at start of period

SW Inv

47.218

53.483

154.439

405.810

330.660

346.540

152.270

224.282

0.000

0.000

0.000

0.000

0.000

0.000

46.101

149.193

0.000

90.774

2000.772

Harvest

SW Her

0.000

0.000

0.000

0.000

0.000

81.923

180.288

265.550

0.000

0.000

0.000

0.000

0.000

0.000

54.583

176.645

0.000

107.477

866.466

Inventory at

SW Inv

1754.446

0.000

246.326

0.000

0.000

HW Inv

2.658

3.011

8.695

22.847

18.616

19.511

8.573

12.627

0.000

0.000

0.000

0.000

0.000

0.000

2.596

8.400

0.000

5.111

112.645

Com Inv

49.877

56.494

163.134

428.658

349.277

366.051

160.843

236.910

0.000

0.000

0.000

0.000

0.000

0.000

48.696

157.593

0.000

95.885

2113.417

during period

HW Har

0.000

0.000

0.000

0.000

0.000

4.612

10.150

14.951

0.000

0.000

0.000

0.000

0.000

0.000

3.073

9.945

0.000

6.051

48.783

: start of

HW Inv

98.777

0.000

13.868

0.000

0.000

Com Har

0.000

0.000

0.000

0.000

0.000

86.535

190.438

280.501

0.000

0.000

0.000

0.000

0.000

0.000

57.656

186.590

0.000

113.528

915.249

915.249

period

Com Inv

1853.223

0.000

260.194

0.000

0.000

AvD Inv

8.335

FH Prop AvD Har

0.000

0.000

0.000

0.000

0.000

0.095

0.208

0.306

0.000

0.000

0.000

0.000

0.000

0.000

0.063

0.204

0.000

0.124

1.000 21.196

MI Identification

GROW/NORM YLDS

PLANT ONLY

PLANT AND PCT

FERT/GEN U/PCT

MI4 + COMM THIN

Acres

0.004

0.002

0.001

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.007

Growth

SW Gro

0.000

25.498

92.152

238.951

306.160

158.926

106.800

41.268

0.000

0.000

0.000

0.000

0.000

0.000

8.483

27.452

0.000

16.702

1022.391

during period

HW Gro

0.000

1.436

5.188

13.453

3.499

8.948

6.013

2.323

0.000

0.000

0.000

0.000

0.000

0.000

0.478

1.546

0.000

0.940

43.823

Com Gro

0.000

26.933

97.341

252.404

309.659

167.874

112.813

43.591

0.000

0.000

0.000

0.000

0.000

0.000

8.960

28.997

0.000

17.643

1066.214

Net Area Change

SW Net

0.000

0.861

1.462

1.513

2.350

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

6.184

HW Net

0.000

0.048

0.082

0.085

0.132

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.348

Com Net

0.000

0.909

1.544

1.598

2.482

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

6.533

Example 2. File-ATMUR

Appendix G 151
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry DougIas-fir/Hem lock

Period 0 Year 1980 Management Unit 2 FI-W.HEMLOCK-MS Management Intensity 1 GROW/NORM YLDS

Example 2. File-ATM UR

152 Appendix G

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Regen

Acres

0.050

0.035

0.037

0.060

0.076

0.052

0.015

0.025

0.000

0.000

0.000

0.000

0.000

0.000

0.005

0.013

0.000

0.009

0.378

Acres

0.000

0.000

0.000

0.000

0.000

0.010

0.015

0.025

0.000

0.000

0.000

0.000

0.000

0.000

0.005

0.013

0.000

0.009

0.078

0.033

Inventory at start of period

SW Inv

18.887

24.817

91.349

279.571

330.660

346.540

152.270

224.282

0.000

0.000

0.000

0.000

0.000

0.000

46.101

149.193

0.000

90.774

1754.446

Harvest

SW Har

0.000

0.000

0.000

0.000

0.000

81.923

180.288

265.550

0.000

0.000

0.000

0.000

0.000

0.000

54.583

176.645

0.000

107.477

866.466

HW Inv

1.063

1.397

5.143

15.740

18.616

19.511

8.573

12.627

0.000

0.000

0.000

0.000

0.000

0.000

2.596

8.400

0.000

5.111

98.777

Com Inv

19.951

26.214

96.492

295.311

349.277

366.051

160.843

236.910

0.000

0.000

0.000

0.000

0.000

0.000

48.696

157.593

0.000

95.885

1853.223

during period

HW Har

0.000

0.000

0.000

0.000

0.000

4.612

10.150

14.951

0.000

0.000

0.000

0.000

0.000

0.000

3.073

9.945

0.000

6.051

48.783

Com Har

0.000

0.000

0.000

0.000

0.000

86.535

190.438

280.501

0.000

0.000

0.000

0.000

0.000

0.000

57.656

186.590

0.000

113.528

915.249

FH Prop

0.000

0.000

0.000

0.000

0.000

0.095

0.208

0.306

0.000

0.000

0.000

0.000

0.000

0.000

0.063

0.204

0.000

0.124

1.000

AvD

10

AvD

21

Inv

.770

Har

.196

Acres

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.004

.002

.001

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.007

Growth during period

SW Gro

0.000

5.595

59.147

88.827

188.381

158.926

106.800

41.268

0.000

0.000

0.000

0.000

0.000

0.000

8.483

27.452

0.000

16.702

701.581

HW Gro

0.000

0.315

3.330

5.001

10.606

8.948

6.013

2.323

0.000

0.000

0.000

0.000

0.000

0.000

0.478

1.546

0.000

0.940

39.500

Net Area Change

SW Net

0.000

0.861

1.462

1.513

2.350

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

6.184

HW Net

0.000

0.048

0.082

0.085

0.132

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.348

Com Gro

0.000

5.910

62.477

93.828

198.988

167.874

112.813

43.591

0.000

0.000

0.000

0.000

0.000

0.000

8.960

28.997

0.000

17.643

741.081

Com Net

0.000

0.909

1.544

1.598

2.482

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

6.533
PC- A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry Douglas-fir/Hemlock

period O Year 1980 Management Unit 2 FI-W. HEMLOCK-MS Management Intensity 3 PLANT AND PCT

Example 2. File-ATMUR

Appendix G 153

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Regen

Acres

0.075

0.052

0.056

0.026

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.208

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.049

Inventory at s t a r t of period

SW Inv

28.331

28.666

63.090

126.239

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

246.326

Harvest

SW Har

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

HW Inv

1.595

1.614

3.552

7.107

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

13.868

Com Inv

29.926

30.280

66.642

133.346

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

260.194

during period

HW Har

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Har

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

FH Prop

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

AvD I n v

3.915

AvD Har

0.000

Acres

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Growth

SW Gro

0.000

19.902

33.006

150.123

117.778

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

320.810

during period

HW Gro

0.000

1.121

1.858

8.452

-7.107

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

4.324

Net Area Change

SW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

HW Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Com Gro

0.000

21.023

34.864

158.575

110.671

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

325.134

Com Net

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000
PC - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 2 EXAMPLE 2 Harvest Unit #2 PNWW Forest Industry Red Alder

Period 0 Year 1980 Management Unit 1 FI-RED ALDER-MS Total over Management Intensities

Example 2. Flle-ATMUR

154 Appendix G

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

Unst

Total

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Req

Regen

MI

1

2

3

4

5

Acres

0.017

0.017

0.091

0.059

0.087

0.030

0.006

0.014

0.000

0.005

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.325

0.000

0.325

Acres

0.000

0.000

0.000

0.000

0.000

0.020

0.006

0.013

0.000

0.005

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.043

0.043

Acres

0.325

0.000

0.000

0.000

0.000

Inventory at start of period SW Inv

8.016

2.820

72.594

47.001

114.377

58.240

3.423

16.374

0.000

8.511

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

331.354

Harvest

SW Har

0.258

0.091

2.333

1.511

3.676

48.245

4.042

19.335

0.000

10.050

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

89.540

Inventory at

SW Inv

331.354

0.000

0.000

0.000

0.000

HW Inv

17.834

6.274

161.505

104.565

254.462

129.570

7.614

36.427

0.000

18.934

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

737.186

Com Inv

25.850

9.093

234.099

151.566

368.839

187.810

11.037

52.801

0.000

27.445

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1068.540

during period

HW Har

0.573

0.202

5.191

3.361

8.178

107.335

8.991

43.016

0.000

22.359

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

199.205

start of

HW Inv

737.186

0.000

0.000

0.000

0.000

Com Har

0.831

0.292

7.524

4.871

11.854

155.580

13.033

62.351

0.000

32.409

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

288.745

288.745

period

Com Inv

1068.540

0.000

0.000

0.000

0.000

FH Prop 0.000

0.000

0.000

0.000

0.000

0.588

0.050

0.238

0.000

0.124

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1.000

AvO Inv

13.271

AvO Har

16.431

MI Identification

GROW/NORM YLDS

N/A

N/A

N/A

N/A

Acres

-0.001

-0.001

-0.005

-0.003

-0.005

-0.002

0.000

•0.001

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-0.017

Growth during period SW Gro

0.090

-2.262

4.018

40.528

22.534

42.569

3.963

3.488

0.000

1.813

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

116.741

HW Gro

0.201

-5.032

8.939

90.165

50.133

94.706

8.816

7.759

0.000

4.033

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

259.721

Com Gro

0.292

-7.294

12.957

130.693

72.667

137.276

12.778

11.247

0.000

5.846

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

376.461

Net Area Change

SW Net

-0.258

-0.091

-2.333

-1.511

-3.676

-1.872

-0.110

-0.526

0.000

-0.274

0.000

0.000

0.000

0.000

0.000

0.000

0.QO0

0.000

-10.650

HW Net

-0.573

-0.202

-5.191

-3.361

-8.178

-4.164

-0.245

-1.171

0.000

-0.609

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-23.693

Com Net

-0.831

-0.292

-7.524

-4.871

-11.854

-6.036

-0.355

-1.697

0.000

-0.882

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-34.343
PC-ATLAS EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 2 EXAMPLE 2 Harvest Unit #2 PNWW Forest Industry Red Alder

Period 0 Year 1980 Management Unit 1 FI-RED ALDER-MS Management Intensity 1 GROW/NORM YLDS

Example 2. File-ATMUR

Appendix Q 155

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Stock

AC

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Total

Regen

Acres

0.017

0.017

0.091

0.059

0.087

0.030

0.006

0.014

0.000

0.005

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.325

Acres

0.000

0.000

0.000

0.000

0.000

0.020

0.006

0.013

0.000

0.005

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.043

0.043

Inventory at start of period

SW Inv

8.016

2.820

72.594

47.001

114.377

58.240

3.423

16.374

0.000

8.511

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

331.354

Harvest

SW Har

0.258

0.091

2.333

1.511

3.676

48.245

4.042

19.335

0.000

10.050

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

89.540

HW Inv

17.834

6.274

161.505

104.565

254.462

129.570

7.614

36.427

0.000

18.934

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

737.186

Com Inv

25.850

9.093

234.099

151.566

368.839

187.810

11.037

52.801

0.000

27.445

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

1068.540

: during period

HW Har

0.573

0.202

5.191

3.361

8.178

107.335

8.991

43.016

0.000

22.359

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

199.205

Com Har

0.831

0.292

7.524

4.871

11.854

155.580

13.033

62.351

0.000

32.409

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

288.745

FH Prop

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

0.

1.

000

000

000

000

000

588

050

238

000

124

000

000

000

000

000

000

,000

,000

,000

AvD

13.

AvD

16

Inv

271

Har

.431

Acres

-0.001

-0.001

-0.005

-0.003

-0.005

-0.002

0.000

-0.001

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-0.017

Growth during period

SW Gro

0.090

-2.262

4.018

40.528

22.534

42.569

3.963

3.488

0.000

1.813

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

116.741

HW Gro

0.201

-5.032

8.939

90.165

50.133

94.706

8.816

7.759

0.000

4.033

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

259.721

Com Gro

0.292

-7.294

12.957

130.693

72.667

137.276

12.778

11.247

0.000

5.846

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

376.461

Net Area Change

SW Net

-0.258

-0.091

-2.333

-1.511

-3.676

-1.872

-0.110

-0.526

0.000

-0.274

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-10.650

HW Net

-0.573

-0.202

-5.191

-3.361

-8.178

-4.164

-0.245

-1.171

0.000

-0.609

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-23.693

Com Net

-0.831

-0.292

-7.524

-4.871

-11.854

-6.036

-0.355

-1.697

0.000

-0.882

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-34.343
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Pd

0

1

2

3

4

5

6

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

6

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Harvest

Year

1980

1990

2000

2010

2020

2030

2040

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

2040

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Unit 1 EXAMPLE 2

Inventory Acres by

GROW/NORM YLDS

1.065

0.874

0.656

0.553

0.492

0.413

0.322

Harvest Unit #1 PNWW Forest Industry Douglas-fir/Henlock

Management I n t e n s i t y f o r a l l Forest (Species) Types.

PLANT ONLY PLANT

0.118

0.159

0.228

0.266

0.283

0.292

0.299

Harvest Acres by Management I n t e n s i t y f o r a l l

GROW/NORM YLDS

0.261

0.384

0.200

0.105

0.094

0.110

Regeneration Acres

GROW/NORM YLDS

0.043

0.071

0.037

0.021

0.018

0.025

Inventory Acres by

GROW/NORM YLDS

0.687

0.538

0.367

0.288

0.248

0.194

0.140

PLANT ONLY PLANT

0.000

0.000

0.014

0.021

0.022

0.059

AND PCT

0.380

0.449

0.565

0.625

0.659

0.683

0.713

FERT/GEN U/PCT

0.433

0.547

0.736

0.840

0.888

0.912

0.929

Forest (Species) Types.

AND PCT

0.000

0.012

0.127

0.136

0.104

0.056

by Management I n t e n s i t y f o r a l l Forest

PLANT ONLY PLANT

0.041

0.069

0.052

0.039

0.033

0.070

Management I n t e n s i t y f o r

PLANT ONLY PLANT

0.118

0.159

0.228

0.266

0.283

0.292

0.299

Harvest Acres by Management I n t e n s i t y f o r

GROW/NORM YLDS

0.183

0.266

0.139

0.066

0.055

0.054

Regeneration Acres

GROW/NORM YLDS

0.010

0.017

0.010

0.004

0.003

0.003

PLANT ONLY PLANT

0.000

0.000

0.014

0.021

0.022

0.059

AND PCT

0.070

0.127

0.188

0.170

0.133

0.095

FERT/GEN U/PCT

0.007

0.041

0.090

0.129

0.165

0.100

(Species) Types.

FERT/GEN U/PCT

0.121

0.230

0.195

0.177

0.195

0.129

DOUGLAS-FIR.

AND PCT

0.172

0.193

0.227

0.246

0.255

0.258

0.260

DOUGLAS-FIR.

AND PCT

0.000

0.010

0.071

0.061

0.030

0.017

FERT/GEN U/PCT

0.433

0.547

0.736

0.840

0.888

0.912

0.929

FERT/GEN U/PCT

0.007

0.041

0.090

0.129

0.165

0.100

by Management Intensity for DOUGLAS-FIR.

PLANT ONLY PLANT

0.041

0.069

0.052

0.039

0.033

0.070

AND PCT

0.021

0.044

0.090

0.070

0.035

0.022

FERT/GEN U/PCT

0.121

0.230

0.195

0.177

0.195

0.129

MI4

MI4

MI4

MI4

MI4

MI4

+ COM4 THIN

0.099

0.120

0.154

0.173

0.182

0.186

0.189

• COMM THIN

0.000

0.014

0.024

0.031

0.030

0.017

+ COMM THIN

0.021

0.048

0.043

0.039

0.035

0.022

* COMM THIN

0.099

0.120

0.154

0.173

0.182

0.186

0.189

+ COMM THIN

0.000

0.014

0.024

0.031

0.030

0.017

+ COMM THIN

0.021

0.048

0.043

0.039

0.035

0.022

Total

2.094

2.148

2.338

2.457

2.504

2.487

2.451

Total

0.268

0.450

0.455

0.422

0.415

0.342

Total

0.295

0.545

0.515

0.445

0.415

0.342

Total

1.509

1.555

1.711

1.813

1.856

1.843

1.816

Total

0.190

0.330

0.339

0.308

0.302

0.247

Total

0.213

0.408

0.390

0.329

0.302

0.247

Example 2. File-ATACRE

156 Appendix G
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 1 EXAMPLE 2 Harvest Unit #1 PNWW Forest Industry Douglas-fir/Henlock

Example 2. File-ATACRE

Appendix G 157

Pd

0

1

2

3

4

5

6

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Year

1980

1990

2000

2010

2020

2030

2040

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Inventory Acres by

GROW/NORM YLDS

0.378

0.336

0.289

0.265

0.244

0.219

0.182

Management I n t e n s i t y f o r

PLANT ONLY PLANT

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Harvest Acres by Management I n t e n s i t y f o r I

GROW/NORM YLDS

0.078

0.118

0.061

0.040

0.039

0.056

Regeneration Acres

GROW/NORM YLDS

0.033

0.054

0.028

0.017

0.015

0.022

PLANT ONLY PLANT

0.000

0.000

0.000

0.000

0.000

0.000

PURE HEMLOCK.

AND PCT FERT/GEN

0.208

0.257

0.338

0.379

0.404

0.425

0.453

PURE HEMLOCK.

AND PCT FERT/GEN

0.000

0.002

0.056

0.075

0.074

0.039

by Management Intensity f o r PURE HEMLOCK.

PLANT ONLY PLANT

0.000

0.000

0.000

0.000

0.000

0.000

AND PCT FERT/GEN

0.049

0.083

0.098

0.100

0.097

0.073

U/PCT

0.000

0.000

0.000

0.000

0.000

0.000

0.000

U/PCT

0.000

0.000

0.000

0.000

0.000

0.000

U/PCT

0.000

0.000

0.000

0.000

0.000

0.000

MI4 + COMM THIN

0.000

0.000

0.000

0.000

0.000

0.000

0.000

MI4 • COMM THIN

0.000

0.000

0.000

0.000

0.000

0.000

MI4 + COMM THIN

0.000

0.000

0.000

0.000

0.000

0.000

Total

0.586

0.593

0.627

0.644

0.648

0.644

0.635

Total

0.078

0.120

0.117

0.114

0.113

0.095

Total

0.082

0.137

0.125

0.116

0.113

0.095
P C - A T L A S EXAMPLE 2 Simulation - PC-ATLAS Base Run 8-Extended Harvest.

Run on 12/ 3/1990 11: 7:49 Using RAF from 12/ 3/1990 11: 7:45

Harvest Unit 2 EXAMPLE 2 Harvest Unit #2 PNWW Forest Industry Red Alder

Example 2. File-ATACRE

158 Appendix G

Pd

0

1

2

3

4

5

6

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

6

Pd

0

1

2

3

4

5

Pd

0

1

2

3

4

5

Year

1980

1990

2000

2010

2020

2030

2040

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

2040

Year

1980

1990

2000

2010

2020

2030

Year

1980

1990

2000

2010

2020

2030

Inventory Acres by

GROW/NORM YLOS

0.325

0.308

0.254

0.205

0.173

0.172

0.169

Management I n t e n s i t y f o r a l l

N/A

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Forest (Species) N/A

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Types.N/A

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Harvest Acres by Management I n t e n s i t y f o r a l l Forest (Species) Types.

GROW/NORM YLOS

0.043

0.027

0.033

0.002

0.005

0.004

Regeneration Acres

GROU/NORM YLDS

0.043

0.027

0.033

0.002

0.005

0.004

Inventory Acres by

GROU/NORM YLDS

0.325

0.308

0.254

0.205

0.173

0.172

0.169

N/A

0.000

0.000

0.000

0.000

0.000

0.000

by Management I n t e n s i t y f o r

N/A

0.000

0.000

0.000

0.000

0.000

0.000

Management I n t e n s i t y f o r

N/A

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Harvest Acres by Management I n t e n s i t y f o r

GROU/NORM YLDS

0.043

0.027

0.033

0.002

0.005

0.004

Regeneration Acres

GROU/NORM YLDS

0.043

0.027

0.033

0.002

0.005

0.004

N/A

0.000

0.000

0.000

0.000

0.000

0.000

by Management I n t e n s i t y f o r

N/A

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

a l l Forest (Species) Types.

N/A

0.000

0.000

0.000

0.000

0.000

0.000

RED ALDER.

N/A

0.000

0.000

0.000

0.000

0.000

0.000

0.000

RED ALDER.

N/A

0.000

0.000

0.000

0.000

0.000

0.000

RED ALDER.

N/A

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

N/A

0.000

0.000

0.000

0.000

0.000

0.000

Total

0.325

0.308

0.254

0.205

0.173

0.172

0.169

Total

0.043

0.027

0.033

0.002

0.005

0.004

Total

0.043

0.027

0.033

0.002

0.005

0.004

Total

0.325

0.308

0.254

0.205

0.173

0.172

0.169

Total

0.043

0.027

0.033

0.002

0.005

0.004

Total

0.043

0.027

0.033

0.002

0.005

0.004
Example 2. File-ATINV

Appendix G 159

PC-ATLAS Inventories

EXAMPLE 2 6086.889

6670.172

6440.310

5846.601

5957.134

6283.793

7519.079

EXAMPLE 2 331.354

347.905

325.199

257.709

275.404

322.889

369.446

from 1/29/1991 13: 473.276

486.411

402.892

383.450

414.416

461.440

527.037

737.186

774.008

723.491

573.341

612.709

718.352

821.931

3219.257

3382.981

3639.849

3625.965

3870.353

4306.771

116.741

112.989

92.704

71.744

63.646

65.854

13:27

218.228

192.245

216.826

223.525

265.382

276.126

259.721

251.374

206.244

159.613

141.599

146.510

2661.433

3703.655

4289.880

3537.327

3531.789

3044.768

89.540

98.701

122.145

29.651

15.196

15.881

207.202

283.145

240.921

194.417

217.513

208.558

199.205

219.587

271.744

65.965

33.808

35.331
Output file ATTMU—This MU-level output file was added to example 2 in a second simulation. It was selected with the entry of the value 3 for the MU level report (in HARVEST,

card type 03). This file was produced instead of ATMUR; the period selection option on

card type 05 is not associated with ATTMU.

Output is year at beginning period, MU name, acres at beginning of period, softwood

inventory, hardwood inventory, softwood growth, hardwood growth, softwood harvest,

hardwood harvest, acres gained or lost over the period, softwood volume gained or lost

over the period, and hardwood volume gained or lost over the period.

File ATTMU:

1980

1980

1980

1990

1990

1990

2000

2000

2000

2010

2010

2010

2020

2020

2020

2030

2040

2030

2040

2030

2040

FI-DOUG-FIR--MS

FI-W.HEMLOCK-MS

FI-REO ALDER-MS

FI-DOUG-FIR--MS

FI-U.HEMLOCK-MS

FI-RED ALDER-MS

FI-DOUG-FIR-MS

FI-U.HEMLOCK-MS

FI-RED ALDER-MS FI-DOUG-FIR-MS

FI-U.HEMLOCK-MS

FI-RED ALDER-MS FI-DOUG-FIR—MS

FI-U.HEMLOCK-MS

FI-RED ALDER-MS F1 -DOUG- FIR-MS Fi-DOUG-FIR-MS

FI-U.HEMLOCK-MS

FI-U.HEMLOCK-MS

FI-RED ALDER-MS FI-RED ALDER-MS

1.S09

0.586

0.325

1.555

0.593

0.308

1.711

0.627

0.254

1.813

0.644

0.205

1.856

0.648

0.173

1.843

1.816

0.644

0.635

0.172

0.169

4086.117

2000.772

331.354

4509.146

2161.026

347.905

4129.129

2311.180

325.199

3712.106

2134.495

257.709

3897.927

2059.208

275.404

4302.558

5233.237

1981.235

2285.841

322.889

369.446

360.631

112.645

737.186

378.482

107.929

774.008

314.366

88.526

723.491

300.576

82.874

573.341

335.569

78.847

612.709

373.998

445.223

87.441

81.814

718.352

821.931

2196.865

1022.391

116.741

2241.427

1141.554

112.989

2412.270

1227.580

92.704

2423.189

1202.776

71.744

2688.244

1182.109

63.646

3017.921

1288.849

65.854

174.405

43.823

259.721

157.239

35.006

251.374

181.026

35.800

206.244

199.759

23.766

159.613

229.756

35.626

141.599

249.571

26.555

146.510

1794.966

866.466

89.540

2692.405

1011.251

98.701

2875.690

1414.190

122.145

2256.928

1280.399

29.651

2275.470

1256.319

15.196

2068.720

976.048

15.881

158.420

48.783

199.205

227.618

55.527

219.587

198.911

42.010

271.744

166.492

27.925

65.965

190.625

26.887

33.808

176.737

31.821

35.331

0.046

0.007

-0.017

0.1S6

0.034

-0.054

0.102

0.017

-0.049

0.043

0.004

-0.032

-0.013

-0.004

-0.001

-0.027

-0.009

-0.003

30.005

6.184

-10.650

100.765

28.354

-36.994

65.885

14.177

-38.049

27.775

3.336

-24.398

-8.252

-3.762

-0.966

-19.052

-8.196

-3.416

2.648

0.348

-23.693

8.893

1.596

-82.304

5.815

0.798

-84.650

2.451

0.188

-54.280

-0.710

-0.144

-2.148

-1.656

-0.362

-7.599

Example 2. File-ATTMU

160 Appendix G

US GOVERNMENT PRINTING OFFICE 1992 691 000/60042