Empirical Yields of Timber and

Forest Biomass in the

Southeast

Joe P. McClure, Project Leader

and

Herbert A. Knight, Resource Analyst

Forest Inventory and Analysis in the Southeast

Asheville, North Carolina

ABSTRACT

Measurements and classifications recorded

at 24,775 Forest Survey plots established

randomly throughout the Southeast comprise

a vast source of information on timber

stand development. Empirical yield tables

developed from this source are reported for

major forest types in the Region. These

tables also serve as guides to yields of forest biomass by tree size and species groups.

Keywords: Southeast, yield tables, forest

biomass.

Introduction

This Paper contains yield tables that show

stand structure and development on Forest

Survey plots in major forest types in the

Southeastern States of Florida, Georgia,

North Carolina, South Carolina, and Virginia. These yield tables were developed

empirically from the average conditions

observed on selected plots. In selecting the

samples for construction of these yield

tables, we screened measurements and classifications recorded at 24,775 Forest Survey

plots established randomly throughout the

Region. Only plots in timber stands classed

as fully stocked by Forest Survey standards

were used. The average yields shown represent a broader range of stocking and sites

than is conventionally used in constructing

yield tables, but they are reasonable guides

to proven stand performance. These tables

fill many of the voids in existing information on timber yields in the Southeast. In

addition, they include the first comprehensive guides to yields in the Region expressed

in terms of forest bicmass.

Methods

Any good sqle plot data may be used in

the construction of empirical yield tables

(Spurr 1952). Yield table construction

requires an adequate sample frun a specific

forest type within the area or region to be

served by the table. In general, stands are

suitable for sarqling when there are no

recognizable factors measurably affecting

growth other than those being evaluated:

age, site, and stand density (Bennett 1966).

Since the purpose of a yield table is to estimate productive potential rather than production based purely on stand history, the

ideal method is to periodically measure

carefully selected stands over the span of

their development. This method is a slow,

meticulous process that discourages yield

table construction. We have attqted to

use Forest Survey sample plots in the Southeast to shortcut the conventional method

without violating acceptable standards.

In recent years, several mensurationists

and resource analysts have probed the use

of Forest Survey data to construct empirical

yield tables (Cost and NIcClure 1982; Essex

and Hahn 1976; Hahn and Raile 1982; Knight

1978; Knight and McClure 1981; Knight and

Sheffield 1980). Although Forest Survey

plots are neither designed nor intended for

this purpose, they comprise a vast source of

information on stand development across the

full range of forest sites and conditions.

Over the years, Forest Survey in the Southeast altered its procedures to accannodate

this kind of use.
Field guides document the establishment

and measurement of the Forest Survey samples plots used in this study. A copy of

“Field Instructions for the Southeast, 1982”

is available upon request. These field instructions also define the forest types

included in this Paper.

Stand Age

Stand age is one of the key data elements

required for sample plots used to construct

yield tables. Prior to 1963, Forest Survey

in the Southeast did not collect stand age

on its sample plots. Instead, it used standsize classes--seedling-sapling, poletimber,

and sawtimber--to monitor and describe

stand development. Although Forest Survey

added stand age in 1963, it was applied and

recorded in lo-year classes. Furthermore,

the lo-point-cluster sample plot used at the

time was allowed to straddle two or more

distinct stands.

Forest Survey in the Southeast corrected

both of these deficiencies in 1973 at the

start of the fourth inventory of North Carolina (Knight and McClure 1975). Since then,

to the extent possible, stand age has been

determined to the nearest year and the cluster sample plot has been confined to a

single stand as identified by point 1. These

changes opened up the opportunity to use

Forest Survey plots in the Southeast to eonstruet empirical yield tables.

Generally, timber stands in the Region

are even-aged. Although many of the stands

have been high-graded from time to time,

there is very little true selection cutting

practiced in the Region. The origin of most

stands can be traced to regeneration following a final harvest, some natural disturbance, or the reversion of agricultural land

to forest. Although the stands are perceived

and described as even-aged, many of the

young stands contain a scattering of older,

residual trees from a former stand and some

of the older stands contain significant numbers of understory trees and pockets of advance reproduction. Crews record the age

of the most prevalent stand. The stand age

specified in these yield tables is the midpoint of a 5-year class. For example, the

lo-year age class includes stands 8 through

12 years of age.

Site

Site is another key factor affecting timber yields. Forest Survey uses the height

and age of a dominant tree, representative

of the prevalent species in a stand, as an

indicator of potential timber yield. Forest

Survey groups these sites into productivity

classes, expressed in cubic feet of growth

per acre, for fully stocked natural stands

at culmination of mean annual increment.

Each of these site classes spans a wide

range of site indexes. In this Paper, high

sites include all sites capable of growing

85 cubic feet or more per acre; medium

sites, 50 to 85 cubic feet; and low sites,

20 to 50 cubic feet. Where a comparative

range of site indexes is indicated, height at

age 50 is the base for both planted and

natural stands.

In this Paper, the yield tables are for

high sites, medium sites, or all sites. Low

sites account for less than 20 percent of

the commercial forest land in the Region,

and fully stocked stands occupy only a portion of these low sites. For most forest

types, the sample of fully stocked stands

on low sites is too small to consturct yield

tables.

Density

Density is another critical variable in

empirical yield tables. In this Paper, the

yield tables represent fully stocked stands

measured against the Forest Survey stocking

standard applied in the Region. This stocking standard is summarized below and is

also included in each of the conventional

Resource Bulletins (Tansey 1983).

In the measurement and classification of

the sample plots, crews tallied overtopped

trees but these trees were not permitted to

Stocking Standard

' Minimum number D.b.h. :

of trees per

i Minimum basal

class ' acre for full

area (ft2> per

(inches) :

stocking

i acre for full

: :

stocking

Seedling 600

2 560

4 460

6 340

8 240

10 155

1 2 115

14 90

1 6 7 2

18 60

20 5 1

--

--

--

6 7

84

85

90

9 6

101

106

111

2
contribute to stocking. In screening out the

plots used to construct these yield tables,

the authors did not permit seedlings to contribute to the required stocking in stands

18 years or older. Saplings in the intermediate crown class were not permitted to

contribute to the stocking requirement in

any stand. In pine forest types, the stocking requirement had to be satisfied by

yellow pine species. In hardwood types, all

species were allowed to contribute to the

stocking requirement. For all types, the

stocking requirement had to be satisfied

with growing stock; the stocking of rough

and rotten trees was excluded.

Merchantability Standards

By precisely defining our merchantability

standards, we hope to avoid a weakness

common in many existing yield tables. In

our tables, all volumes expressed in cubic

feet are solid wood; they exclude bark and

all rotten and missing wood detected in the

trees. The total aboveground volume includes

all solid wood above the ground line in all

live trees 1.0 inch in diameter and larger

at breast height (d.b.h. ) , excluding the

volume in twigs and lateral limbs smaller

than 0.5 inch in diameter.

Volume of growing stock is the solid wood

in the central stem and forks of all growingstock trees 5.0 inches d.b.h. and larger

from a l-foot stump to a minimum 4.0-inch

top diameter outside bark (d.o.b. ). Growingstock trees are live trees of commercial

species that meet specified standards for

sawtimber or will likely meet such standards

when they reach minimum sawtimber size--

9.0 inches d.b.h. for softwoods and 11.0

inches d.b.h. for hardwoods. Volume in the

sawlog portion of sawtimber trees is the

solid wood from a l-foot stump to a minimum ‘7.0-inch top d.o.b. for softwoods and

a minimum 9.0-inch top d.o.b. for hardwoods. This saw timber volume is expressed

in net board feet, based on the International l/4-inch log rule. The technique used

to measure standing trees for developing

volume-prediction equations for tree species

in the Southeast is documented and available

upon request (Cost 1978).

In these tables, we define forest biomass

as the green weight of aboveground wood

and bark (excluding foliage ) in all live

trees 1.0 inch d.b.h. and larger. Foliage

includes leaves, needles, buds, fruit, twigs,

and lateral limbs smaller than 0.5 inch in

diameter. Studies by the Utilization of

Southern Timber Research Work Unit at the

Forestry Sciences Laboratory in Athens,

Ga., provided the vital linkage between

volume and weight (Clark 1979; McClure and

others 1981; Saucier 1979).

Screening

To construct these empirical yield tables,

we developed special summary records for

each of the 24,775 sample plots on commercial forests in the Southeast. These plot

summaries include 20 screening variables,

ranging from location to stocking. Next, we

wrote a special computer program for

screening and compiling these plot summaries

into specified groupings. This computer

program selects or excludes individual plot

records using any specified combination of

the 20 screening variables. The tables in

this Paper are part of the output from the

computer program.

Discussion

We tried to validate the empirical yield

tables developed from Forest Survey plot

data by comparing them with other published

information on yields. We reviewed numerous

yield table studies and carefully examined

the procedures used and the published results. In most cases, valid comparisons were

impossible because of signif icant differences

either in the procedures used or in the way

the results were presented.

We established the following criteria for

selecting an existing yield table for comparison: (1) the table should be based on a large

sample of a well-defined forest condition

over a broad geographic area, (2 ) the independent variables used in the table should be

age, site, and stocking, (3) one or more of

the units of measure should be comparable,

and (4) the merchantability standards should

be essentially the same as ours. With these

criteria, the choice boiled down to the

tables published by Schumacher and Coile

(1960). From the host of yellow pine species

contained in the Schumacher and Coile publication, we selected loblolly pine because it

had the widest geographic range and a sample of 420 plots.

Although a few differences exist between

the two data sets, these differences are

small and could easily compensate for one

another. For example, Schumacher and

Coile estimated the cubic-foot volume of the
entire tree stem (inside bark) based on the

height of dominant stand and l.O-inch

diameter classes. We computed the total

aboveground cubic volume of sample trees

individually using total height and actual

d.b.h. Another minor difference between the

two data sets involves the selection of the

sample plots. Schumacher and Coile purposely

selected even-aged stands judged to be well

stocked, undisturbed by past cutting, and

representative of a homogeneous site. The

Forest Survey sample differs in that all plots

used in a specific yield table were selected

from the regionwide summary records by

sequentially screening each plot through specific type, site, age, and stocking criteria.

Table 1 compares our results with those of

Schumacher and Coile for natural loblolly

pine stands in the Coastal Plain of the

Southeast. From Schumacher and Coile, the

cubic volume for the entire stand (inside

bark, stump to tip) for site index 70 was

compared with Forest Survey’s total aboveground volume of southern yellow pine. Since

the yields published by Schumacher and Coile

apparently excluded all hardwood volume

encountered on the sample plots, any hardwood volume was excluded from the Forest

Survey yields for the comparison. Since 100

percent or more stocking of southern yellow

pine was required in the Forest Survey samples, any hardwood volume would likely be

in small trees of tolerant species in the

understory.

In the comparison, we first plotted the

Schumacher and Coile yields for site index

70 over stand age and drew a freehand curve

through the plotted points to establish a

reference curve between 5 and 85 years of

age. Next, we plotted the Forest Survey

yields averaged by 5-year age classes and

noted the number of samples in each average.

Displayed in this manner (fig. l), it is

obvious the Schumacher and Coile curve is

well within the central area of the plotted

points throughout the range of the data.

This comparison leads the authors to conclude that Forest Survey data compare favorably with the highly respected yields developed by Schumacher and Coile. Since the

Table l.--Comparison of yields for well-stocked, natural stands of loblolly pine

on medium sitesa in the coastal plain of the Southeast

i

. :

Stand i

:

Forest Survey (total aboveground) :

Schumacher :

and Coile : : Number

age

(years) i (entire stand) ’ Yellow : All species : of :

: pines : : plots

: : : Volume i Standard error :

--------- - Cubic feet per acre - - - - - - - - - -

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

--

--

--

1,690

2,540

3,100

3,460

3,720

--

3,910

4,050

77 78

717 773

1,254 1,479

1,694 2,014

2,311 2,636

2,452 2,795

2,659 3,160

2,714 3,148

3,018 3,361

3,636 4,227

3,270 3,643

3,367 3,966

5,351 6,286

4,060 4,682

3,591 4,079

2,763 3,074

4,295 5,754

40

155

137

83

128

82

153

139

102

181

264

451

205

247

13

10

20

40

25

43

30

29

22

14

6

5

1

1

3

3

1

aSchumacher and Coile, Site Index 70; Forest Survey, Site Class 4 (Site

Index 60-78).

4
other empirical yields presented in this entire series should compare favorably when

Paper were developed by using methods simi- fairly tested against the results of other,

lar to those used for loblolly pine, the good yield studies.

a

2

h 3- 3 -

$

Li

2 * d

s

4 0

O20

I .-

90

,I3 I

II II II I I II I I I II I I I I I

0 5 IOIO I5I5 20 25 30 35 40 45 50 55 60 65 70 75 80 85 20 25 30 35 4 0 4 5 50 55 6 0 65 7 0 75 8 0 85

STAND AGE (YEARS)

60 II 1I II I II I II I II I I I II I I I I

0 o o FOREST SURVEY, MEDIUM SITES

(SI 60-78)

SCHUMACHER SCHUMACHER & COILEILE (SI 70) ol

5 5 --

 o o o FOREST SURVEY, MEDIUM SITES

(SI 60-78)

(PLOTTING POINTS & NUMBER OF SAMPLES)

IO

s! 4-

2

4 -

(PLOTTING POINTS & NUMBER OF SAMPLES)

IO

Figure I .--Yields for fully stocked natural loblolly stands on medium sites

in the Coastal Plain of the Southeast.
Literature Cited

Bennett, Frank A. Construction and use of

volume and yield tables. In: Measuring

the southern forest; 15th annual forestry

symposium proceedings; 1966. Baton

Rouge, LA: Louisiana State University

School of Forestry; 1966: 17-29.

Clark, Alexander, III. Suggested procedures

for measuring tree biomass and reporting

tree prediction equations. In: Forest

resource inventories; Workshop proceedings; 1979 July 23-26; Fort Collins, CO:

Colorado State University; 1979: 615-628.

vol. 2.

Cost, Noel D. Multiresource inventories:

a technique for measuring volumes in

standing trees. Res. Pap. SE-196. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest

Experiment Station; 1978. 18 p.

Cost, Noel D. ; McClure, Joe P. Multiresource inventories: forest biomass in

Florida. Res. Pap. SE-235. Asheville,

NC: U.S. Department of Agriculture,

Forest Service, Southeastern Forest

Experiment Station; 1982. 24 p.

Essex, Burton L. ; Hahn, Jerold T. Empirical yield tables for Wisconsin. Gen.

Tech. Rep. NC-25. St. Paul, MN: U.S.

Department of Agriculture, Forest Service, North Central Forest Experiment

Station; 1976. 22 p.

Hahn, Jerold T. ; Raile, Gerhard K. Empirical yield tables for Minnesota. Gen.

Tech. Rep. NC-71. St. Paul, MN: U.S.

Department of Agriculture, Forest Service, North Central Forest Experiment

Station; 1982. 212 p.

Knight, Herbert A. Average timber characteristics of the better-stocked, natural

stands in North Carolina and Virginia.

Res. Note SE-257. Asheville, NC: U.S.

Department of Agriculture, Forest

Service, Southeastern Forest Experiment

Station; 1978. 10 p.

Knight, Herbert A. ; McClure, Joe P. North

Carolina’s timber, 1974. Resour. Bull.

SE-33. Asheville, NC: U.S. Department

of Agriculture, Forest Service, Southeastern Forest Experiment Station; 1975.

52 p.

Knight, Herbert A. ; McClure, Joe P. Multiresource inventories: forest biomass in

South Carolina. Res. Pap. SE-230. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest

Experiment Station; 1981. 27 p.

Knight, Herbert A. ; Sheffield, Raymond M .

Thinning opportunities in pine plantations

in the Southeast during the 1980’s. In:

Thinning southern pine plantations: integrating economics and biology; 1980 March

3-5; Long Beach, MS. Southern Forest

Economics Workshop Proceedings; 1980 :

18-26.

McClure, Joe P. ; Saucier, Joseph R. ;

Biesterfeldt , Robert C. Biomass in southeastern forests. Res. Pap. SE-227. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest

Experiment Station; 1981. 38 p.

Saucier, Joseph R. Estimation of biomass

production and removal. In: Proceedings,

impact of intensive harvesting on forest

nutrient cycling; 1979 August 13-16;

Syracuse, NY : State University of New

York; 1979: 172-189. [unnumbered.]

Schumacher, Francis X. ; Coile, Theodore S.

Growth and yield of natural stands of

southern pines. Durham, NC: T.S. Coile,

Inc.; 1960. 115 p.

Spurr, Stephen H. Forest inventory. New

York: Ronald Press Co.; 1952. 476 p.

Tansey, John B. Forest statistics for

Georgia, 1982. Resour. Bull. SE-69. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest

Experiment Station; 1983. 50 p.
Yield Tables for Fully Stocked Stands

Tables la, 2a, 3a, . . . . . . . 34a show the

average empirical yields of timber expressed

in numbers of trees, basal area, and volumes

per acre for fully stocked stands for specific timber types, sites, and regions, by

5-year age classes.

Table lb, 2b, 3b, . . . . . . . 34b are companion tables which show the average empirical yields of forest biomass expressed in

green tons per acre, by tree size and species group.
co Table la .--Average empirical yields of timber for fully stocked stands

Type: Natural loblolly pine Site: Medium (SI 60-78) Region: Southeast

: : Live trees per acre, : :

: : . :

Volume per acre

Stand : :

by d.b.h. class

age

: Sample : (inches)

i Basal area :

: : :

plots :

:

per acre, :

Total . :

Sawtimber

(years) :

-

: : : :

: trees 5.0+ * Standard : Growing i

: aboveground :

: : l.O+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches : trees l.O+ : error stock

:

: Saw-log i International

: : : : : : : : : :

: portion : *-inch rule

- -

10 2 3

15 39

20 7 0

25 5 6

30 7 7

35 62

40 5 5

45 44

50 1 7

55 1 2

60 11

65 --

70 --

75 --

80 --

- - - -

1,391

1,417

1,567

1,142

1,036

1,131

882

947

1,083

965

1,011

--

- - Number- - - - - - - -

82 __ __ __

202 19 -- --

257 29 3

--

308 49 7 1

294 7 5 1 1 1

286 80 1 4 1

253 95 1 9 2

236 93 24 3

214 116 39 8

198 100 35 7

217 96 34 8

-- -- -- --

-- -- -- --

-- -- -- --

-- -- -- --

Square

feet

1 6 744 107 186

53 1,495 117 709

7 0 1,968 7 8 1,065

9 5 2,497 7 9 1,586

106 2,739 69 1,927

107 2,947 115 2,090

110 3,124 105 2,326

109 3,217 110 2,422

124 4,043 180 3,163

113 3,556 181 2,815

114 3,468 298 2,610

-- -- -- --

--

- Cubic feet - - - - - - -

--

110 581

257 1,368

567 3,005

882 4,677

1,042 5,519

1,407 7,459

1,602 8,484

2,509 13,279

2,174 11,519

2,054 10,877

-- --

Board

feet

--

--

--

-- --

--
Table lb.--Average empirical yields of forest biomass for fully stocked stands

Type: Natural loblolly pine Site: Medium (SI 60-78) Region: Southeast

: : :

Stand :

: Total ' Standard 1

D.b.h. class (inches) i Species group

age l.O+ ;

: . :

error : 5.0+ : 9.0+ I

' Yellow i Other i

:

Soft i

:

(years) : 13.0+ : 17.0+ : Gums : Oaks Hard

: : : : : : :

pines ; softwood : : hardwood :i hardwood

1 0

15

2 0

2 5

3 0

3 5

40

45

5 0

55

6 0

6 5

--------------______- Green tons per acre - - \

26.4 3.7 10.1 -- -- -- 23.3 - -

54.4 4.2 35.6 7.6 -- -- 48.3 --

72.3 2.9 51.8 15.8 3.3 -- 61.9 0.1

91.5 2.9 75.4 30.5 9.8 3.4 81.6 .3

101.1 2.6 89.1 48.2 13.9 3.1 88.8 .4

109.0 4.3 95.8 56.1 17.3 2.2 93.3 .l

115.5 3.9 104.7 73.7 25.8 5.5 99.0 .5

118.5 4.0 107.3 79.4 34.1 7.1 104.1 .6

149.1 6.5 136.4 117.7 62.8 18.6 126.7 --

130.9 6.9 121.0 101.3 54.5 15.2 117.2 .4

129.0 11.0 116.2 94.9 54.2 18.5 107.4 .5

-- - - - - - - - - - - - - - -

-------------------

1.1

2.7

3.8

4.4

4.8

5.4

5.7

5.4

9.2

5.2

2.2

- -

1.0

1.2

1.9

1.8

3.0

3.6

2.7

2.9

7.1

3.4

4.3

0.9

1.9

3.5

2.8

2.6

4.0

5.1

4.0

3.5

3.7

7.9

- -

0.2

.3

1.1

.7

1.5

2.5

2.5

1.5

2.7

.9

6.6

7 0 -- - - - - - - - - - - - - - - - - - - - - --

7 5 - - -- - - - - - - - - we - - - - - - - - --

80 - - - - - - - - - - - - - - - - - - - - - - - -
Table 2a .--Average emprical yields of timber for fully stocked stands

Type: Natural loblolly pine Site: High (SI 79+) Region: Southeast

: : : :

: :

Live trees per acre,

: :

Volume per acre

Stand : :

by d.b.h. class

age

: Sample : (inches)

: Basal area : : : :

(years) : p1ots :

:

per acre, :

Total :

Sawtimber

-

: : : :

: trees 5.0+ : aboveground :Standard i Growing i

: : r.o+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ :

inches : trees l-O+ : error : stock : Saw-log i International

: : : : : : : : : :

: portion : %-inch rule

.

-----___- Number - -----__ -----_ - Cubic feet - - - - - -

Square

feet

10

1 5

20

25

30

35

40

45

50

55

60

65

70

75

80

8 995 185 6

9 1,620 216 26

2 2 841 285 7 4

6 1 857 274 84

87 927 292 106

7 1 816 251 121

6 5 788 237 116

36 724 221 117

26 728 197 118

1 4 692 234 128

5 950 174 97

7 690 176 122

3 804 171 103

2 727 157 128

-- -- -- --

-- --

3

--

1 3 2

1 7 3

25 4

33 5

41 7

52 1 1

5 9 1 3

50 9

49 1 2

7 3 2 3

5 7 1 3

6 7 1 4

-- --

40 969 245 447

6 1 1,889 382 1,031

106 2,762 189 1,994

112 2,975 90 2,210

128 3,633 92 2,790

131 3,954 113 3,114

133 4,305 131 3,403

137 4,581 173 3,711

138 4,809 209 3,954

142 4,514 330 3,431

120 4,159 341 3,273

154 5,588 480 4,616

126 4,323 563 3,526

146 5,330 20 4,097

-- -- -- --

46

279

993

1,196

1,696

2,222

2,601

3,026

3,420

2,805

2,937

4,410

3,178

4,020

--

Board

feet

246

1,474

5,251

6,341

8,980

11,768

13,795

16,055

18,155

14,886

15,593

23,415

16,877

21,253

--
Table 2b.--Average empirical yields of forest biomass for fully stocked stands

Type: Natural loblolly pine Site: High (SI 79+) Region: Southeast

: : :

Stand :

D.b.h. class (inches) i Species group

age

: Total ’ Standard i

(years) : 1.0+ ; error l

: : :

’ Yellow ’

: :

: .5.0+ : 9.0+ : 13.0+ : 17.0+ :

Other i Hard

Gums :

Soft i

: : : : : : :

pines i softwood

:

: hardwood : Oaks i hardwood

------w-e----------- _ Green tons per acre - - - - - - - - - - - - - - - - - - - - - -

10 35.3 9.2 23.6 3.1 -- -- 31.8 -- 1.8 0.1 1.2 0.4

15 68.3 14.0 48.6 15.5 4.7 -- 64.6 -- 2.7 .7 0.2 .l

20 102.0 7.1 92.4 51.2 17.8 6.1 94.9 0.1 4.6 .5 1.6 .3

25 110.1 3.3 100.5 62.7 23.1 6.2 97.1 .2 3.9 3.9 4.2 .7

30 134.6 3.4 124.2 85.8 34.7 9.2 117.0 .3 7.5 4.1 4.6 1.1

35 145.8 4.1 135.8 108.3 48.5 11.6 128.6 .2 6.8 4.3 4.8 1.0

40 158.8 4.8 148.0 122.5 67.4 17.9 133.9 .2 8.8 5.9 7.3 2.7

45 168.7 6.4 160.0 137.9 87.6 28.1 143.3 .7 9.6 7.1 6.3 1.7

50 177.3 7.8 170.0 153.7 105.3 33.1 150.4 .l 10.9 5.5 7.4 3.1

55 161.3 10.0 153.5 134.1 81.5 24.8 130.1 .2 10.0 6.3 6.8 7.9

60 153.7 12.8 140.2 127.0 93.7 35.5 128.4 -- 5.2 7.2 10.6 2.3

65 206.0 17.9 199.0 188.2 150.1 67.4 172.9 .7 12.8 4.3 10.3 5.0

70 158.7 22.0 150.1 138.0 104.5 34.7 132.7 1.0 11.6 6.0 3.8 3.6

75 189.5 7.5 179.2 173.7 126.7 44.0 167.5 -- 5.3 1.1 .7 14.9

80 - - - - - - - - - - - - - - - - - - - - - - - -
N Table 3a .--Average empirical yields of timber for fully stocked stands

Type: Natural loblolly pine Site: Medium (SI 60-78) Region: Coastal Plain

: : : :

: :

Live trees per acre, . :

Volume per acre

Stand : :

by d.b.h. class

: Sample : (inches)

i Basal area :

: : :

age plots :

: per acre, . Total :

Sawtimber

(years) : : : : :

: trees 5.0+ 1

aboveground :

Standard i Growing i

: : 1:0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches '

: trees l.O+ : error stock

:

: Saw-log i International

: : : : : : : : : :

: portion : g-inch rule

Square Board

----e-__ - Number - - - - - - - - feet --m--e - Cubic feet - - - - - - - feet

10 1 0 1,463 63 -- -- -- 1 2 773 155 139 -- --

1 5 20 1,444 184 13 -- -- 46 1,479 137 645 73 385

20 40 1,646 237 28 4

-- 6 7 2,014 83 1,053 275

25 2 5 1,128 295 50

1,465

11 2 94 2,636 128

30 43

1,698 721

1,091 274

3,822

7 6 1 3 2 103 2,795 82 1,944 957

35 30 1,279 292 80

5,067

16 1 109 153

40

3,160

29

2,202

885

1,122

255

5,934

96 1 8 2 110 3,148 139

45

2,320

2 2 871

1,364 7,225

212 9 7 29 4 110

50

3,361 102

14

2,564

1,052

1,868

209 119

9,880

43 9 127 4,227 181

55

3,315

6

2,669

1,120

14,126

170 108 33 7 108 3,643 264

60

2,859 2,314

5

12,252

1,129 209 100 43 11 123

65

3,966 451 3,028 2,495 13,201

-- -- -- -- -- -- -- -- -- -- -- --

70 -- -- -- -- -- -- -- -- -- -- -- --

75 -- -- -- -- -- -- -- -- -- -- -- --

80 -- -- -- -- -- -- -- -- -- -- -- --
Table 3b. --Average empirical yields of forest biomass for fully stocked stands

Type: Natural loblolly pine Site: Medium (SI 60-78) Region: Coastal Plain

: : :

Stand : Species group

age

: Total ' Standard i

D.b.h. class (inches) i

:

(years) : 1.0+ .i : : : :

error ' Yellow '

: 5.0+ : 9.0+ : 13.0+ : 17.0+ :

Other I Soft :

Oaks :

Hard

Gums :

: : : : : : :

pines i softwood : : hardwood 1 : hardwood

1 0 27.1

15 53.9

2 0 74.3

2 5 97.3

3 0 103.5

3 5 117.4

40 116.7

4 5 124.2

5 0 155.8

5 5 135.0

6 0 147.2

6 5 - -

- - - - - - - - - - - - - ---e-e--Green tons per acre - - -

5.3

4.8

3.0

4.8

3.0

5.7

5.2

3.7

6.5

9.9

17.2

7.5

32.7

51.9

81.1

90.3

101.8

105.7

112.9

143.0

122.1

133.2

- -

-- --

5.6 --

16.7 4.2

37.1 15.0

51.5 16.5

59.5 20.0

72.7 23.1

89.2 43.3

124.5 69.5

109.4 53.0

111.8 72.9

- - - -

-- 24.7 --

-- 45.0 --

-- 61.6 --

4.4 84.5 0.2

3.6 90.1 .4

2.6 97.6 l 2

4.6 99.7 --

9.9 110.6 .2

20.7 133.1 --

15.2 119.9 .8

27.4 123.2 .9

- - - - - -

1.5 -- 0.9

3.4 1.6 3.5

3.8 2.6 5.0

4.8 2.4 4.2

5.2 3.2 3.2

6.5 4.1 6.5

5.2 2.9 5.4

4.4 3.0 5.0

8.9 7.2 3.7

4.6 3.6 4.7

1.9 6.3 11.2

-- -- --

- - - -

0.3

1.4

1.0

1.3

2.6

3.5

1.0

2.9

1.5

3.7

- -

7 0 - - - - - - - - - - - - - - - - - - - - - - - -

7 5 - - - - - - - - - - -- - - - - - - - - - - - -

8 0 - - - - - - - - - - - - we - - - - - - -- --

w
s: Table 4a .--Average empirical yields of timber for fully stocked stands

Type: Natural loblolly pine Site: Medium (SI 60-78) Region: Piedmont

: :

Live trees per acre, : :

: :

by d.b.h. class : :

Volume per acre

Stand : :

: Sample : (inches)

: Basal area :

: : :

age plots :

per acre, :

: trees 5.0+ Total .

Sawtimber

(years) : : : : : :

* Standard : aboveground : i Growing i

: : 1;0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches : trees l.O+ :

error : stock : Saw-log i lnternational

: : : : : : : : : :

: portion : k-inch rule

10

1 5

20

25

30

3 5

40

45

50

55

60

65

70

75

80

-------

- Number - -

1 3 1,336 96 --

17 1,379 217 23

2 6 1,490 279 33

29 1,171 319 45

3 3 954 318 72

32 993 281 80

26 877 251 95

2 1 1,041 256 89

3 1,231 237 103

6 809 226 9 1

-- -- -- --

-- -- -- --

---e-e

-- --

2 --

3 1

9 1

1 3 1

2 1 3

1 9 2

20 4

38 7

-- --

-- --

Square

feet

1 8 721 152 222

58 1,466 211 741

7 4 1,905 162 1,068

9 5 2,371 98 1,466

110 2,654 121 1,905

10s 2,748 166 1,984

110 3,097 161 2,332

106 3,051 201 2,257

111 3,187 183 2,455

118 3,468 268 2,771

-- -- -- --

--

--

----_--Cubic feet - - -

--

134

240

413

792

967

1,455

1,345

1,764

2,033

--

Board

feet - -

--

710

1,276

2,189

4,203

5,130

7,719

7,134

9,324

10,787

--

-- -- --

--

-- -- --

--

--

-- -- -- -- -- --
Table 4b.-- Average empirical yields of forest biomass for fully stocked stands

Type: Natural loblolly pine Site: Medium (SI 60-78) Region: Piedmont

: : :

Stand ' Total '

D.b.h. class (inches) '

Standard '

:

Species group

age :

1.0+ i

.

error a

: : .

(years) : : 5.0+ : 9.0+ : 13.0+ I ' Yellow ' Other '

: :

17.0+ : pines i softwood ;

Gums

Soft : Hard

: : : : : : :

i hardwood i

Oaks i hardwood

1 0 25.9 5.3 12.2 --

15 53.3 7.6 37.4 8.8

2 0 69.5 6.0 51.3 15.3

25 86.3 3.6 69.8 23.6

3 0 97.7 4.5 87.7 44.2

35 101.1 6.1 90.2 52.9

40 114.2 6.0 103.6 74.8

4 5 111.9 7.3 100.7 69.9

5 0 117.7 6.4 106.1 85.8

55 126.7 10.1 119.9 93.1

6 0 - - - - - - - -

- - - -------w-e--- - - - - - Green tons per acre - - - - - - -

- - - - 22.1 -- 0.8

-- -- 50.8 0.1 2.0

2.3 -- 62.3 .2 4.2

4.7 2.5 78.5 .3 4.0

10.9 2.6 86.4 .4 4.4

14.7 2.0 89.2 -- 4.3

28.8 6.5 98.2 1.0 6.2

25.8 4.4 96.9 1.0 6.1

31.7 9.0 97.0 -- 10.4

55.9 15.3 114.5 l l 5.9

- - - - - - - - - -

1.8

0.4

.9

1.3

2.8

3.2

2.5

2.7

6.3

3.2

- -

0.9

1.5

1.8

1.9

1.8

4.9

3.1

2.7

2.7

--

0.3

- -

* 5

.4

1.8

2.5

1.5

2.1

1.4

.4

- -

65 - - - - - - - - - - - - - - - - - - - - - - - -

7 0 - - - - - - - - - - - - - - - - - - - - - - - -

7 5 - - - - - - - - - - - - - - - - - - - - - - - -

8 0 - - - - es - - - - - - - - - - - - - - - - - -
;;; Table 5a.-- Average empirical yields of timber for fully stocked stands

Type: Planted loblolly pine Site: Medium (SI 60-78) Region: Southeast

: : : :

: :

Live trees per acre, .Volume per acre

:

by d.b.h. class :

Stand :

age

: Sample : (inches)

i Basal area : : : :

plots :

: per acre, : Total Sawtimber

:

(years) : : : : :

: trees 5.0+ : aboveground :Standard j Growing i

: : 1;0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches : trees l.O+ : error : stock : Saw-log ' International

: : : : : : : : : :

: portion i k-inch rule

--------- Number- - - - - - - -

--

Square

feet --_--- - Cubic feet - - - - - - -

Board

feet

1 0 96 1,217 78 -- -- -- 1 4 643 49 139 -- --

1 5 44 1,230 266 17 -- -- 6 5 1,602 113 855 9 7 515

20 3 5 907 351 3 5 1

-- 98 2,276 154 1,460 251 1,327

25 22 841 366 63 1 -- 112 2,684 149 1,877 463 2,444

30 3 521 335 127 2 -- 134 3,199 313 2,576 1,057 5,583

35 2 851 360 105 33 -- 144 3,511 481 2,739 1,381 7,297

40 -- -- -- -- -- -- -- -- -- -- -- - -

45 -- -- -- -- -4 -- -- -- -- -- -- --

50 -- -- -- -4 -- -- -- -- -- -- -- --

55 -- -- -- -- -- -- -- -- -- -- -- --

60 -- -- -- -- -- -- -- -- -- -- -- --

65 -- -- -- -- -- -- -- -- -- -- -- --

70 -- -- -- -- -- -- -- -- -- -- -- --

7 5 -- -- -- -- -- -- - - -- -- -- -- --

80 -- -- -- -- -- -- -- -- -- -- -- --
Table 5b.-- Average empirical yields of forest biomass for fully stocked stands

Type: Planted loblolly pine Site: Medium (SI 60-78) Region: Southeast

: : : D.b.h. class (inches) :

Stand :

: Total ' Standard f

:

Species group

age : . : : :

(years) : 1.0+ ; error l: 5.0+ : 9.0+ I 13.0+ ' Yellow ': 17.0+ :

Other ' Soft : Hard

pines ; softwood ;

Gums :

: : : : : : :

: hardwood i Oaks i hardwood

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

------------------- - - Green tons per acre - - - - - - - - - - - - - - - - - - - - -

22.9

58.6

83.9

99.5

117.6

129.9

--

1.8

4.2

5.7

5.6

10.3

17.3

8.0

43.1

71.5

89.4

115.1

124.4

-- -- -- 20.6

6.9 -- -- 54.4

16.1 1.0 -- 79.9

29.9 1.1 0.4 93.1

64.4 2.3 -- 117.2

70.6 35.5 -- 127.9

-- -- -- --

-- 0.8 0.5 0.6 0.3

0.2 1.0 1.0 1.5 .5

.l 1.2 .9 1.4 .5

l 2 1.8 1.1 2.7 .6

-- .4 -- -- --

-- .8 l 4 -- .8

-- -- -- -- --

-- -- -- -7

--

--

--

--

-- -- -- --

-- -- -- --

-- -- -- -- --

-- -- -- -- --

-- -- -- -- --
co Table 6a .--Average empirical yields of timber for fully stocked stands

Type: Planted loblolly pine Site: High (SI 79+) Region: Southeast

: :

Live trees per acre, : :

: : : :

Volume per acre

Stand : :

by d.b.h. class

age

: Sample : (inches)

: Basal area :

: : :

.

plots :

per acre, : Total *

Sawtimber

(years) : : : : :

* trees 5.0+ :

e Standard : aboveground :

i Growing i

: : l.O+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ :

inches : trees l.O+ : error : stock : Saw-log i International

: : : : : : : : : :

: portion : k-inch rule

- - Number -

-------

Square

- - - feet - - - -

10 3 9

1 5 2 8

20 28

25 2 6

30 11

35 1

40 2

45 --

50 --

55 --

60 --

65 --

70 --

7 5 --

80 --

- - -

928

888

834

560

481

834

338

--

168 3

340 5 1

355 7 6

333 116

284 120

235 146

188 130

-- --

-- -- --

--

-- --

--

-- --

-- --

1 --

2

--

9 1

15 --

39 2

44 3

-- --

36

101

119

133

125

143

126

-- -- we

-- -- --

--

--

-- --

989

2,360

2,933

3,388

3,382

4,818

3,607

--

- - - Cubic feet - - - - - - -

143 440 1 5

158 1,565 377

160 2,122 632

168 2,660 1,314

230 2,731 1,513

-- 3,974 3,158

231 2,858 2,301

-- -- --

-- -- a-

-- -- --

Board

feet

80

1,989

3,341

6,943

7,993

16,717

12,185

--

--

--

-- -- -- -- --

-- -- --
Table 6b. --Average empirical yields of forest biomass for fully stocked stands

Type: Planted loblolly pine Site: High (ST 79+) Region: Southeast

: : :

Stand : D.b.h. class (inches) i Species group

age

: Total i Standard i

: :

.

: :

(years) :

1.0+ : error : 5.0+ : 9.0+ : 13.0+ I ’ Yellow i 17.0+ :

Other i Soft ; Oaks :

Hard

softwood Gums :

: : : : : : :

pines :

:

: hardwood : : hardwood

______-------------- _ Green tons er acre- - - - - - - - - - - - - - - - - - - - -

10 35.6 5.2 22.9 1.0 -- - - 34.0 - - 0.7 0.4 0.3 0.2

15 87.1 5.9 75.9 24.0 0.5 - - 83.5 0.2 .9 1.7 .5 .3

20 108.5 5.9 98.7 39.1 2.2 - - 103.4 - - 1.6 1.3 2.0 .2

25 125.3 6.2

a.5

121.3 73.5 10.6 1.2 123.6

120.3 81.9 20.1 1.2 120.2

1.2

3.2

.3 .l

-- 1.1 .3

- - 171.4 151.9 58.7 5.1 156.0 - - 6.8 5.1 - - 9.1

9.5 131 .o 118.8 59.1 9.2 111.1 - - 5.6 4.2 10.3 1.5

30

35

40

124.8

177.0

132.8

45

50

55

60

65

70

75

80

- - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - -

co
Table 7a .--Average empirical yields of timber for fully stocked stands

Type: Natural slash pine Site: Medium (SI 62-80) Region: Southeast

: : : : Live trees per acre, : : Volume acre

by d.b.h. class

:

Basal area

:

per

Stand : :

Sample :

(inches) : : : : :

age : per acre, Total ' *

Sawtimber

: :

(years) : plots : : : : : -: trees 5.0+ : aboveground : Standard i Growing i

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches : trees l.O+ : error : stock: Saw-log i International

: : : : : : : : : : : portion : k-inch rule

1 0

1 5

20

25

30

3 5

40

45

50

55

60

Square Board

------- - - Number - - - -

- - _ - feet ------ - Cubic feet - - - - - - - feet

3 863 22 -- -- -- 5 255 41 76 -- --

2 1,100 199 5 -- -- 4 1 1,421 653 635 65 345

9 1,107 282 26 2 -- 7 6 2,161 237 1,137 218 1,152

36 1,085 326 49 5 1 96 2,746 134 1,742 573 3,026

22 954 301 55 8 2 9 6 2,719 156 1,743 666 3,517

23 1,129 343 56 7 1 106 3,189 179 2,094 799 4,228

19 888 319 76 15 3 111 3,316 248 2,285 1,153 6,088

12 572 250 95 15 1 107 3,188 168 2,407 1,388 7,333

5 972 359 110 11 2 132 3,956 370 2,831 1,444 7,621

8 820 258 107 26 5 124 3,771 192 2,872 1,883 9,976

-- -- -- -- -- - - -- -- -- -- -- --

65 -- -- -- -- -- -- -- -- -- -- -- --

70 -- -- -- .-- -- - - -- -- -- -- -- --

7 5 -- -- -- -- -- -- -- -- -- -- -- --

80 -- -- -- -- -- -- -- -- -- -- -- - -

- -
Table 7b.-- Average empirical yields of forest biomass for fully stocked stands

Type: Natural slash pine Site: Medium (62-80) Region: Southeast

: : : D.b.h. class (inches) :

Stand :

: Total ' Standard '

:

Species group

---

age : : : : :

(years) : 1.0+ ; error : 5.0+ : 9.0+ i

' Yellow '

13.0+ : 17.0+ :

Other ' Soft : Hard

Gums :

: : : : : : :

pines '

:

softwood '

:

: hardwood i Oaks i hardwood

---

10

15

20

25

30

35

40

45

50

55

60

---------

9.5 1.4 3.8 --

51.7 24.1 32.1 3.3

80.8 8.9 55.7 12.2

103.6 5.1 83.4 31.3

101.1 5.9 83.5 36.8

120.1 6.9 98.7 42.4

124.8 9.3 107.4 60.2

122.2 6.6 111.2 73.3

147.4 13.0 130.6 79.2

141.4 7.7 127.7 93.9

-- -- -- --

- - - - - - - - - - - - Green

--

tons per aCre - - - - - - - - - - - - - - - - - - - - -

-- -- 9.1 -- -- 0.5 -- --

-- -- 48.0 3.4 -- .3 -- --

0.9 -- 79.5 -- 0.8 .2 0.1 0.2

6.5 1.9 96.2 3.3 1.3 1.1 1.4 .4

10.2 3.8 91.2 1.4 3.0 4.0 .6 1.0

9.7 1.6 110.7 .7 2.0 5.9 .3 .5

20.3 5.6 108.7 8.4 4.0 1.5 2.2 --

20.2 1.5 117.6 -- .9 -- 3.3 .3

15.4 3.1 119.5 16.3 9.7 1.9 -- --

39.0 10.9 119.4 7.0 10.0 3.2 l 9 1.0

-- -- -- -- -- -- -- --

65 -- -- -- -- -- -- -- -- -- -- -- --

70 -- -- -- -- -- -- -- -- -- -- -- --

75 -- -- -- -- -- -- -- -- -- -- -- --

80 -- -- -- -- -- -- -- -- -- -- -- --

--- .---w-w--
E Table 8a .--Average empirical yields of timber for fully stocked stands

Type: Natural slash pine Site: High (SI al+) Region: Southeast

A----______ ---- I__- -------- -- -_-I

:

I__---

:

:

Live trees per acre, : :

:

by d.b.h. class :

Basal area :

Volume per acre

Stand : :

:-----~--__

: Sample :

(inches) : : : :

we :

per acre, : Total : :

Sawtimber

(years) :

plots :-..----~‘---~.---- -__----

: : : :

: trees 5.0+

inches

: aboveground :

Standard : Growing i---- - -

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : : trees l.O+ :

error stock

:

: Saw-log ' International

.

---I~f----_____ : : : : : : : : :

: portion i g-inch rule

--P-e----___ ------____ ------- --__-- ---

-------_- Number- - - - - - - -

---

Square

feet- -----_

Board

- Cubic feet -- - - - - - - feet

1 0 -- -- - - -- -- -- -- - - -- -- -- --

1 5

20

2 5

30

35

40

45

50

5 5

60

65

70

--

5

2 5

3 9

28

20

2 1

2

2

5

--

--

1,002

923

615

631

592

584

628

596

963

--

-- -- --

342 48 1 6

333 8 1 6

263 102 1 4

252 106 23

267 108 2 5

216 110 3 7

268 128 5 1

206 145 50

231 115 5 5

-- - - - -

-- -- --

-- --

1 108

1 111

2 114

2 118

2 122

6 120

2 3 154

2 143

1 3 143

- - --

--

2,671

3,254

3,479

3,652

3,789

3,935

4,900

4,893

5,017

--

--

347

184

130

164

158

199

2,317

647

498

--

-- --

1,587 398

2,288 1,000

2,697 1,677

2,852 1,868

3,007 1,991

3,142 2,531

4,015 3,522

3,864 3,263

4,078 3,367

-- --

--

2,102

5,286

8,864

9,867

10,529

13,374

18,662

17,261

17,889

--

--

7 5 -- -- - - - - -- -- -- -- -- -- -- --

80 -- -- -- - - -- -- -- -- -- -- -- --

-.---------II--- -- ------ -l_----l_---- --I--I_(_-------- .-
Table 8b.-- Average empirical yields of forest biomass for fully stocked stands

Type: Natural slash pine Site: High (SI 81+) Region: Southeast

: : : D.b.h. class (inches) :

Stand i Total ' Standard i:

Species group

age

(years) : 1.0+ ;

: : : : :

error ' Yellow '

: 5.0+ : 9.0+ : 13.0+ : 17.0+ :

Other i

Gums

Soft : Hard

Oaks :

: : : : : : :

pines ; softwood : i hardwood i : hardwood

- -

-------------------- - Green tons p

er acre - - - - - - - - - - - - - - - - - - - - -

10 -- -- -- -- -- -- -- -- -- -- -- --

15

20

25

30

35

40

45

50

55

60

65

--

96.7

123.2

132.7

139.4

144.3

149.9

187.3

186.9

188.4

--

-- -- -- --

12.1 79.6 24.3 9.7

6.9 106.1 55.2 8.3

5.0 122.2 86.0 22.7

6.3 129.4 94.2 33.3

5.8 135.3 99.8 36.1

7.4 140.7 119.5 61.3

88.5 180.3 158.7 113.5

25.5 174.8 160.3 78.9

18.4 179.4 153.8 106.2

-- -- -- --

-- - -

0.6 89.7

2.1 117.6

4.6 128.7

4.7 130.8

4.2 136.9

14.8 136.6

68.4 157.9

5.7 169.0

39.4 151.9

-- --

--

0.1

.5

.2

1.6

--

2.8

--

--

4.5

--

--

2.1

2.3

1.2

3.0

4.5

5.5

10.5

6.0

21.6

--

0.7

1.0

1.0

2.2

2.4

3.1

5.0

7.9

3.1

--

-- --

0.5 3.6

1.4 0.3

1.4 --

1.6 --

.3 .1

1.7 .2

10.9 2.9

3.9 --

7.3 --

-- --

70 -- -- -- -- -- -- -- -- -- -- -- --

75 -- -- -- -- -- -- -- -- -- -- -- --

80 -- -- -- -- -- -- -- -- -- -- -- --
!2 Table 9a .--Average empirical yields of timber for fully stocked stands

Type: Planted slash pine Site: Medium (SI 62-80) Region: Southeast

: : : :

: :

Live trees per acre,

: :

Volume per acre

Stand : :

by d.b.h. class

: Sample : (inches)

: Basal area : : : :

age plots :

:

per acre, :

Total *

Sawtimber

:

(years) : : : : :

: trees 5.0+ : aboveground :* Standard : Crowing i

: : 1.r)+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches : trees l.O+ : error : stock : Saw-log i International

: : : : : : : : : :

: portion : k-inch rule

10

1 5

20

25

30

35

40

45

50

55

60

65

70

7 5

80

7 4 699

123 774

138 734

48 664

11 592

4 574

3 727

- - Number

55 --

236 2

320 11

327 26

270 63

314 51

227 74

-- --

-- --

-- --

-- --

-- --

-- --

-- --

------_-

Square

feet ------- Cubic feet - -

--e-e

Board

feet

-- --

1 --

1 --

1

--

7 1

2 5 3

9 587 49 101

47 1,341 45 604

76 1,894 58 1,144

88 2,247 87 1,500

90 2,409 276 1,733

9 7 2,287 429 1,537

98 2,709 344 2,119

--

-- --

--

-- --

-- --

--

-- -- -- -- -- -- --

--

--

-- --

-- --

--

-- --

1 1

96

231

602

527

1,458

--

-- --

--

--

5 7

508

1,223

3,180

2,800

7,719

--
Table 9b.-- Average empirical yields of forest biomass for fully stocked stands

Type: Planted slash pine Site: Medium (SI 62-80) Region: Southeast

: : :

Stand D.b.h. class (inches) :

:

Species group

age

i Total ' Standard i

1.0+ i error

: : :

(years) : ' Yellow '

: :

: 5.0+ : 9.r)+ : 13.0+ : 17.0+ : Other '

Gums :

Soft : Hard

: : : : : : :

pines ; softwood '

:

: hardwood i Oaks i hardwood

--------------e--e-- - Green tons per acre _ _ _ _ _ - - - - - _ _ _ _ _ _ _ _ _ _ _

10 21.4 1.8 5.5 -- -- - - 20.8 - - - - - - 0.5 - -

15 49.7 1.7 31.8 0.7 -- - - 48.6 - - 0.1 0.2 .6 0.2

2 0 71.5 2.3 57.4 5.6 0.6 - - 69.4 0.1 .l .3 1.5 .2

25 85.5 3.4 73.1 13.7 1.3 - - 83.9 - - . 3 .l 1.0 .l

3 0 91.4 10.1 81.9 35.4 1.3 0.2 87.1 2.2 .3 .6 .6 .6

3 5 87.0 16.6 76.4 30.3 8.8 2.0 83.7 -- - - - - 3.3 --

40 104.7 13.4 96.8 69.7 33.5 4.8 94.2 - - 2.1 - - 8.5 --

4 5 - - - - - - - - - - - - - - - - - - - - - - - -

5 0 - - - - - - - - - - - - - - - - - - - - - - - -

5 5 - - - - - - - - - - - - - - - - - - - - - - - -

6 0 - - - - - - - - - - - - - - - - - - - - - - - -

6 5 - - -- - - - - - - - - - - - - - - - - - - - -

7 0 - - - - - - - - - - - - - - - - - - - - - - --

7 5 - - -- - - - - - - - - - - - - - - - - - - - -

80 - - - - - - - - - - - - - - - - - - - - -- --
Table lOa.-- Average empirical yields of timber for fully stocked stands

Type: Planted slash pine Site: High (ST 81+) Region: Southeast

: : : :

: :

Live trees per acre,

: :

Volume per acre

Stand : :

by d.b.h. class

age

: Sample : (inches) :

Basal area : : : :

plots :

: per acre, : Total *

Sawtimber

(years) : : : : :

: trees 5.0+ * Standard : aboveground :

i Crowing i

: : l.O+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches : trees l.r)+ : error : stock : Saw-log i International

: : : : : : : : : :

: portion : k-inch rule

- -

10

1 5

20

25

30

35

40

45

-----em- - Number- - - - - - - -

---

Square

- - feet

1 3 693 173 1 --

2 9 771 330 11 1

7 6 743 375 39 2

6 1 496 331 7 0 2

7 496 248 115 1 6

3 626 185 123 2 2

4 364 169 140 49

-- -- -- -- --

-- 3 7

-- 7 6

-- 104

-- 111

-- 109

1 110

2 131

-- --

----_

- - Cubic feet - - - - - - -

Board

feet

1,002 189 415 5 2 7

1,875 146 1,113 89 472

2,636 89 1,832 347 1,832

2,874 103 2,246 713 3,767

3,057 389 2,448 1,538 8,125

3,513 402 2,938 2,369 12,514

4,500 650 3,933 3,427 18,105

-- -- -- -- --

50 -- -- -- -- -- -- -- -- -- -- -- --

55 -- -- -- -- -- -- -- -- -- -- -- --

60 -- -- -- -- -- -- -- -- -- -- -- --

65 -- -- -- -- -- -- -- -- -- -- -- --

70 -- -- -- -- -- -- -- -- -- -- -- --

75 -- -- -- -- -- -- -- -- -- -- -- --

80 -- -- -- -- -- -- -- -- -- -- -- --
Table lOb.-- Average empirical yields of forest biomass for fully stocked stands

Type: Planted slash pine Site: High (SI 81+) Region: Southeast

-

: : :

Stand : D.b.h. class (inches) :

age

: Total ' Standard f

:

Species group

- -

: : : : :

(years) : 1.0+ ; error '

:

' Yellow '

5.0+ : 9.0+ : 13.0+ : 17.0+ :

Other ' Soft :

Gums :

Hard

: : : : : : :

pines : softwood :

: :

: hardwood i Oaks i hardwood

1 0

15

20

25

30

35

40

45

50

55

60

65

70

75

80

36.9

70.2

100.4

110.1

116.2

134.4

173.8

--

7.2

5.6

3.4

4.0

14.8

16.4

25.3

--

-

21.3

56.0

89.3

105.8

109.8

129.1

172.4

--

--

--

--

--

--

--

--

-------

0.4 --

5.4 0.7

21.3 2.1

42.2 2.7

81.5 20.2

117.6 30.0

161.5 75.6

-- --

-- --

-- --

-- --

-- --

-- --

-- --

-- --

---.-

Green tons per acre -

-- 36.8 --

-- 68.6 --

0.2 97.1 --

. 3 108.2 --

-- 113.8 --

3.1 133.1 --

4.6 172.4 --

-- -- --

-- -4 --

-- -- --

-- -- --

--------e-e

0.8 0.3

1.3 .6

.9 .3

2.4 .l

l 3 --

-- .3

-- --

-- --

--e--e0.1

.4

1.2

l 5

--

. 5

1.1

--

--

--

--

--

--

0.1

.2

.2

l 4

--

--

--

--

--

--

--
Table lla.--Average empirical yields of timber for fully stocked stands

Type: Natural shortleaf pine Site: Medium (SI 54-71) Region: Southeast

- ------------~- --------

: : : :

: :

Live trees per acre,

.

:

Volume per acre

-__--

Stand : :

by d.b.h. class

: Sample :

(inches)

* Basal area :-------------

: : : :

Sawtimber

age

(years) : p1ots :

:

per acre, .

Total : :

.

I _ - - ------

: : : :

: trees 5.0+ :

inches

aboveground :

: : 1.0+ : 5.r)+ : 9.0+ : 13.0+ : 17.0+ : I trees 1 O+ :

Standard : Crowing i

.

error : stock : Saw-log i International

: : : : : : : : : :

: portion : g-inch rule

-------I_-----____ --- ------------------___- ----

--------- Number- - - - - - - -

---

Square

~-

feer ------- Cubic feet ~-_- - - - - - -

Board ---

feet

- -

10 4 1,283 14 -- -- -- 2 319 89 18 - - - -

15 9 1,458 181 13 -- -- 45 1,212 216 590 58 309

20 11 1,363 308 26 3

- - 7 9 2,025 190 1,138 180 954

25 18 1,149 313 3 5 3

- - 88 2,168 134 1,351 286 1,515

30 18 1,282 293 44 5

- - 91 2,490 192 1,540 431 2,294

35 21 1,099 318 6 7 6

- - 104 2,665 124 1,822 657 3,482

4 0 16 880 266 83 12 1 108 2,868 131 2,144 973 5,186

45 6 1,275 295 7 8 4

- - 9 7 2,720 238 1,798 689 3,663

50 3 1,235 203 7 9 13 -- 86 2,874 421 1,923 1,144 6,052

5 5 8 716 295 106 18 3 126 3,703 224 2,870 1,620 8,658

60 4 795 310 101 15 2 127 3,461 296 2,567 1,264 6,712

65 4 799 249 88 12 1 99 2,625 180 1,948 1,052 5,555

7 0 3 1,184 217 7 5 19 1 96 2,990 109 2,188 1,289 6,811

7 5 1 632 232 165 43 -- 139 3,822 - - 3,140 2,296 12,169

80 2 680 229 142 65 12 158 4,957 473 4,019 3,355 17,867

- - ---- __- - -
Table llb.--Average empirical yields of forest biomass for fully stocked stands

Type: Natural shortleaf pine Site: Medium (SI 54-71) Region: Southeast

: : : D.b.h. class (inches) :

Stand : Total : Standard i

:

Species group

age : :

.

: : :

(years) : 1.0+ i error

: 5.0+ : 9.0+ I ’ Yellow ’13.0+ : 17.0+ :

Other ’ Soft :

pines i softwood :

Gums :

: hardwood i Oaks :

Hard

: : : : : : : :

hardwood

:

_--_---------------- - Green tons p er aCre - - - - - - - - - - - - - - - - - - - - -

10 12.3

15 43.0

20 71.2

25 76.6

30 89.4

35 95.1

40 103.3

45 98.1

50 104.1

55 135.0

60 127.7

65 93.8

70 108.3

75 138.0

80 178.2

3.5

7.6

6.8

4.7

7.0

4.6

4.8

8.6

16.2

8.5

9.7

6.3

5.0

15.9

1.2 --

26.7 5.1

51.3 11.7

61.1 17.0

69.3 25.8

80.6 37.7

92.6 53.7

79.7 44.1

80.8 57.8

126.2 89.0

117.1 71.2

85.4 56.3

92.3 61.5

133.5 124.0

173.3 155.6

--

--

3.0

2.7

4.9

6.3

15.2

4.3

16.7

28.0

17.6

13.0

23.1

46.0

97.9

--

--

0.3

.4

.6

3.3

.5

- -

8.1

3.8

1.1

2.8

- -

27.0

11.0

35.1

61.9

66.6

72.1

81.2

88.0

73.3

86.5

106.0

110.8

84.5

97.9

110.1

147.8

0.4

*5

1.8

1.2

1.4

1.3

1.2

.l

1.7

- -

- -

.6

1.5

3.2

.9

--

3.1

2.6

2.8

5.7

4.7

1.7

5.4

3.7

4.0

5.1

2.0

3.9

20.4

14.2

2.4

2.6

2.1

2.6

3.7

8.1

1.4

6.2

1.8

1.5

0.4

- -

11.9

0.2 0.7

.l .3

1.4 1.1

1.2 2.1

4.9 3.3

1.7 3.6

5.1 3.6

2.8 8.4

7.0 3.8

13.8 5.0

7.6 2.4

1.8 3.3

2.7 1.9

4.2 - -

- - 3.4
8 Table 12a .--Average empirical yields of timber for fully stocked stands

Type: Natural longleaf pine Site: All sites Region: Southeast

---.---------___my - -

: :

------ ----------_ - -

Live trees :

: : per acre, .

:

:

Volume per acre

Stand : : by d.b.h. class i Basal area --- ---~-

age : Sample : (inches) :

: : : : Sawt imber

(years) : plots :-~--I-------~I---: : : : :

per acre, :

trees 5.0+

Total *

’

:

: : Standard : Crowing i _I---~-

aboveground

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches : trees : l.O+ error stock Saw-log : : i International

~-. k-inch rule - : : : : : :

: : portion : : :

___---- V I---

Square Board

- - - Number feet Cubic feet

- -

- - - - .- - - - - .- - - - _

----__ - - - - - - - -

a-- -

feet

- -

10 2 152 33 12 -- -- 15 410 -- 345

15 2 871 22 22 --

155 818

2 13 533 53

20 2 921 121 3 -- --

226 168 888

32 811 610 416

25 10 866 236 50 --

27 140

4 75 2,105 287 30 17 720 182 53 -- 1,375 582 3,073

7 67 1,829 182 1,269 641 35 14 690 236 55 3,390

40 21 539 218 11 1 86 2,494 235 911

79 15 1

1,785 4,811

91 2,541 172 45 31 555 198 75

15 1

1,979 1,211 6,398

86 2,449 50 23 437 201 136 1,894 1,250 6,605

97 22 1 55 19 460 165 104 99 3,121 191 2,512 1,834 9,692

60 11 350 161 27 3 99 3,247 225

96 22 2

2,653 2,147 11,343

88 2,588 173 65 4 773 217

126 30 4

2,155 1,723 9,101

70 11 366 177 114 121 4,115 994 3,415

32 2

2,666 14,095

297 75 8 317 112 108 3,368

76 34 2

2,839 2,406 12,729

7 8 80 3 504 138 2,615 442

78 25 7

2,201 1,983 10,473

-v-v- 83 ------_I------_______ 2,591 527 2,191 1,989 10,506

- - - ------ ------~---___---.-----
Table 12b .--Average empirical yields of forest biomass for fully stocked stands

Type: Natural longleaf pine Site: All sites Region: Southeast

: : : D.b.h. class (inches) :

Stand :

Total ’ Standard i

:

Species group

age : : :

.

: :

(years) : l.O+ ; error: 5.0+ : 9.0+ : 13.0+ I

’ Yellow i

17.0+ :

Other i Gums Soft : Oaks :Hard

: : : : : : :

pines ; softwood : i hardwood i : hardwood

- -

10 16.0 -- 15.7 8.2

15 19.5 2.1 9.8 9.8

20 29.4 22.1 19.6 1.4

25 80.0 11.1 66.0 31.5

30 69.4 7.0 59.5 34.3

35 95.4 9.2 84.1 45.5

40 98.2 6.8 91.3 61.5

45 94.6 5.4 87.6 63.0

50 121.1 7.5 114.4 90.0

55 126.5 8.9 119.2 103.3

60 101.9 6.9 97.9 84.1

65 159.8 38.0 152.6 130.8

70 132.3 11.7 128.5 115.0

75 102.3 17.4 98.7 90.2

80 101.2 21.1 98.0 89.8

----_-__ - - - -

1.2

3.9

8.6

16.3

19.0

20.2

31.1

41.9

30.8

49.6

49.6

54.1

49.4

Green tons per acre - - - -

- - 16.0 - -

- - 19.5 --

- - 29.1 - -

- - 68.8 --

0.9 65.4 --

1.9 91.9 --

1.9 93.9 --

1.8 89.6 --

3.4 117.9 0.3

7.8 123.2 --

5.2 97.5 --

8.9 151.6. .3

7.2 127.0 - -

6.0 99.7 --

20.1 100.4 - -

-- -- -- --

--

3.0

0.5

.4

.7

.9

.3

1.8

- -

1.3

.4

.3

.2

3.9

0.7

.3

.2

.7

.3

.l

4.3

--

--

--

--

0.3

3.6

2.1

2.6

1.8

3.2

2.1

1.4

3.6

2.2

4.9

2.1

.3

--

0.7

.7

.1

1.6

.l

.2

.8

.2

.3
it Table 13a .--Average empirical yields of timber for fully stocked stands

Type: Natural Virginia pine Site: Medium (SI 57-66) Region: Southeast

- - 1 --- 1 __- I_____--

:

-

: : :

: :

Live trees per acre,

by d.b.h. class :

. Volume per acre

Stand : :

: Basal area : : -.. :

age

: Sample : (inches)

plots : . --•

:

per acre,

---------: trees 5.0+

I

Total :

Sawtimber

(years) : : : : aboveground :

Standard i Growing i -

: : l.O+ I 5.0+ I 9.0+ : 13.0+ : 17.0+ : inches : trees l.O+ :

error : stock : Saw-log i International

: : : : : : : : : :

: portion : k-inch rule

~--- -------_-_ ---ll---__ - -

- - Number -

-m-e___ ----__ Cubic feet - - - - - - -

10

1 5

20

25

30

35

40

45

50

55

60

65

70

75

1 4 1,154 61 --

1 4 1,985 149 6

27 1,821 210 11

30 1,203 297 34

2 1 1,024 344 53

2 2 1,068 310 56

1 4 923 309 68

8 744 357 119

4 1,243 269 137

3 1,115 281 7 5

2 879 259 52

3 871 304 109

1 709 308 100

-- -- -- --

Square

feet-

_I-- Board

feet

-- --

1 --

3 --

5

--

5

--

6

--

7

--

1 3 1

1 1 2

3 --

1 9 1

29 --

-- --

1 2 751

3 3 1,770

50 2,127

83 2,562

106 3,002

95 2,850

106 2,914

135 3,882

118 3,596

101 2,994

7 9 2,602

129 3,739

143 3,953

-- --

107 135 --

168 457 1 8

133 730 68

127 1,398 283

118 1,927 490

160 1,789 505

197 2,064 676

179 2,917 1,274

121 2,511 1,481

229 2,069 798

242 1,526 508

606 2,793 1,286

-- 3,002 1,812

-- -- --

-- 2,717 1,623

9 5

367

1,505

2,593

2,678

3,592

6,762

7,851

4,285

2,738

6,965

9,609

--

80 1 717 217

P-P-_ 107 3 3 2 116 3,343

---- - -

8,574

--
Table 13b.--Average empirical yields of forest biomass for fully stocked stands

Type: Natural Virginia pine Site: Medium (SI 57-66) Region: Southeast

-

: : :

Stand :

D.b.h. class (inches) :

Total ’ Standard :

Species group

- -

age : f---* : : :

1.0+ ; error : 5.0+ : 9.0+ : 13.0+ :

’ ’ ’

Yellow Other :

: Soft : :

(years) : 17.0+ : Hard

: : : : : :

: pines softwood ; ;

Gums Oaks

: hardwood i i hardwood

__~--I_---- - -

-----------------____Green tons- - per acre - - - - - - - - - - - - - - - - - - - - -

10 28.4 4.0 8.9 -- __ __ 25.9 0.5 0.2 0.7 0.6 0.5

15 66.4 6.2 25.7 3.0 -- - - 59.7 l 3 1.5 2.4 1.2 1.4

20 80.2 4.9 39.9 5.7 0.8 - - 70.0 1.2 1.0 3.5 1.5 3.1

25 97.3 4.7 70.6 18.8 3.5 0.8 84.9 1.4 2.6 2.4 2.4 3.6

30 113.3 4.5 92.9 30.1 4.8 .5 99.4 1.8 .9 3.2 3.6 4.4

35 107.6 5.9 85.2 32.1 5.3 .7 93.3 .2 2.8 2.7 5.9 2.7

40 109.2 7.4 96.5 43.3 5.5 .3 92.5 1.4 5.0 5.7 2.5 2.2

45 144.5 6.0 133.7 79.5 9.7 .6 127.0 .l 3.5 4.4 6.r) 3.5

50 132.8 4.1 113.3 88.9 16.8 2.1 112.2 .8 2.5 6.6 2.9 7.6

55 115.2 10.7 99.2 54.7 16.2 5.1 83.5 1.1 2.0 2.2 21.9 4.4

60 96.7 10.7 70.5 31.6 4.4 .O 84.7 -- .3 1.9 2.3 7.5

65 144.4 23.9 132.7 85.5 24.6 1.3 93.5 -- 4.0 5.8 38.1 3.0

70 146.9 -- 136.7 92.3 36.1 - - 130.8 2.3 - - 4.4 - - 9.3

75 -- -- -- -- -- - - -- -- - - - - - - - -

80 122.0 -- 115.2 86.0 37.8 3.6 115.2 .5 - - - - - - 6.3
Table 14a .--Average empirical yields of timber for fully stocked stands

Type: Natural Virginia pine Site: High (SI 67+) Region: Southeast

: :

: : per acre, Live trees : :

: :

Volume per acre

Stand : : by d.b.h. class Basal area

Sample :

(inches) : : : : :

age : : per acre, : Total : Sawtimber

plots : : : : trees 5.0+ : Standard

:

(years) : : :

inches

:

aboveground : Growing i

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : : trees l.O+ error : : stock : Saw-log i International

: : : : : :. : : : : : portion 1 g-inch rule *

Square Board

-------_ - Number -

- - - - - - -

feet ------- Cubic feet -

- - - - - - - feet

10 3 1,438 138 -- -- __ 38 1,369 730 388 -- --

1 5 2 1,128 228 12 -- -- 59 2,410 656 61 323

20 7 1,169 212 14 2

1,066

1 56 2,098 191 923 135 743

25 11 780 313 54 2 -- 98 2,614 154 426

30

1,721

14 902 329 70

2,265

4

-- 107 3,040 124

35

2,040

11 969 307 90 7

615 3,252

40 13 1,000 320 97 13 --2 118 3,615 179 2,635 1,003 5,354

124 3,746 253

45

2,766

3 547 246 132

1,220 6,457

20 -- 124 3,614 519

50

2,871

6 729 316 103 18

1,707 9,016

3 129 4,107 294

55

3,242 1,562 8,329

-- -- -- -- -- -- -- -- -- -- -- --

60 -- -- -- -- -- -- -- -- -- -- -- --

65 1 767 267 125 5 2 128 3,956 --

70

2,743 1,364 7,266

-- -- -- -- -- -- -- -- -- -- -- --

7 5 -- -- -- -- -- -- -- -- -- -- -- --

80 -- -- -- -- -- -- -- -- -- -- -- --
Table 14b.-- Average empirical yields of forest biomass for fully stocked stands

Type: Natural Virginia pine Site: High (SI 67+) Region: Southeast

: : : D.b.h. class (inches) :

Stand :

: Total ' Standard '

:

Species group

age : : : : : :

(years) : 1.0+ ; error ' Yellow i: 5.0+ : 9.0+ : 13.0+ : 17.0+ :

Other i

Gums :

Soft ; Hard

: : : : : : :

pines ; softwood :: hardwood : Oaks

l

i hardwood

1 0 51.8 28.5 26.9 __ __ -_ 48.6

15 90.2 27.0 51.9 4.5 -- -- 89.9

2 0 79.7 7.6 47.9 9.6 3.8 1.4 69.8

2 5 98.4 5.6 84.6 28.7 3.0 -- 91.4

3 0 114.4 4.5 96.6 38.8 4.1 0.5 109.1

3 5 135.7 7.0 119.8 62.5 9.9 5.0 119.4

40 140.1 9.2 125.3 70.6 16.1 .7 126.8

45 132.2 18.5 124.7 94.6 22.2 -- 126.9

5 0 154.3 11.4 147.0 88.9 27.3 8.0 133.3

-- -- --

-- 0.1 --

1.7 - - 1.2

1.5 .4 2.5

- - 1.2 3.1

1.3 1.2 5.1

1.3 1.5 3.1

- - -- 2.0

0.8 - - 5.8

0.2 2.9

-- 0.2

3.1 3.9

2.2 .3

.7 .3

6.7 2.0

2.9 4.6

.7 2.6

8.3 6.0

5 5 - - - - - - - - - - - - - - - - - - - - - - - -

6 0 - - - - - - - - - - -- - - - - -- - - - - - -

6 5 146.9 - - 135.4 95.0 9.5 4.9 115:8 -- - - 20.1 - - 11.0

7 0 - - - - - - - - - - -- - - - - -- -- - - - -

7 5 - - - - - - -- - - - - - - - - - - - - - - - -

8 0 - - - - - - - - - - -- - - - - - - - - - - - -
% Table 15a.-- Average empirical yields of timber for fully stocked stands

Type: Natural pond pine Site: All sites Region: Southeast

: : : :

: :

Live trees per acre,

: :

Volume per acre

Stand : :

by d.b.h. class

(inches)

: Basal area : : : :

age

: Sample :

plots :

:

per acre, : Total Sawtimber

: :

(years) : : : : :

-: trees 5.0+ : aboveground :Standard : Crowing i

: : 1.c+ : 5.0+ : 9.0+ : 13.0+ ; 17.0+ : inches : trees l.O+ : error : stock : Saw-log i International

: : : : : : : : : :

: portion : k-inch rule

Square

feet - -

- - - - - - - Cubic feet - - - - - - -

10 4 558 8

-- -- -- 2 8 1 5 3 1 9 -- --

1 5 1 3 824 52 6 -- -- 1 2 440 101 133 36 190

20 1 3 1,169 117 12 1 -- 3 1 802 137 388 98 522

25 22 1,194 201 29 2 -- 59 1,494 135 862 254 1,343

30 30 1,053 200 34 5 1 63 1,563 169 968 361 1,907

35 20 1,108 267 58 8 -- 9 1 2,293 197 1,615 662 3,500

40 25 911 232 57 1 0 2 85 2,039 177 1,496 737 3,894

45 2 6 1,054 222 70 1 7 3 9 1 2,394 181 1,777 1,047 5,537

50 1 7 925 270 65 14 1 96 2,529 274 1,859 967 5,112

55 6 1,058 195 83 1 8 3 90 2,578 251 1,921 1,374 7,298

60 1 4 1,406 223 97 2 2 4 105 3,144 9 3 2,258 1,534 8,120

65 3 1,938 136 64 1 6 1 7 3 2,397 22 1,504 1,108 5,852

70 3 1,016 150 74 24 5 86 2,384 311 1,777 1,387 7,340

75 4 1,702 153 80 1 7 2 85 2,558 364 1,767 1,316 6,950

80 -- -- -- -- -- -- -- -- -- -- -- --
Table 15b.--Average empirical yields of forest biomass for fully stocked stands

Type: Natural pond pine Site: All sites Region: Southeast

: : :

Stand D.b.h. class (inches) ’

i Total :

Species group

’ Standard ’

age 1.0+ ;

: : : :

(years) : error ’ Yellow i

:

: 5.0+ : g.o+ : 13.0+ : 17.0+ :

Other i

‘Oft ; Oaks i Hard

softwood Gums :

: : : : : : :

pines :

:

: hardwood : : hardwood

_------------------ _ _ Green tons er acre - - - - - - - - - - - - - - - - - - - - -

10 3.0 1.9 0-g -- -- -- 3.0 - - - - - - - - - -

15 17.5 4.0 7.2 2.4 -- -- 16.0 0.1 0.3 1.0 - - 0.1

20 30.9 4.9 19.3 5.8 0.7 -- 26.9 - - .4 1.1 1.6 l 9

25 56.9 4.7 41.2 14.7 2.1 0.3 50.9 .9 1.6 2.9 0.2 .4

30 60.4 5.9 46.6 20.1 6.4 2.5 53.1 1.0 2.9 1.9 1.2 .2

35 84.5 6.4 73.7 37.4 9.4 .4 72.8 1.9 3.5 4.1 .3 1.8

40 77.5 5.7 67.5 38.8 13.9 4.2 68.2 .9 4.7 3.1 .3 .2

45 88.6 6.1 78.3 52.9 22.5 5.3 77.7 - - 2.8 6.0 1.4 .8

50 94.3 9.1 82.9 50.3 20.3 2.6 79.0 - - 2.4 11.4 .8 .7

55 93.1 9.3 82.8 65.7 27.1 7.6 79.7 .1 7.9 4.8 - - .5

60 113.7 3.5 97.2 75.2 33.8 9.8 91.,9 - - 4.6 14.8 .3 2.1

65 87.7 1.3 64.9 52.1 21.2 2.8 68.8 - - 11.9 3.3 .6 3.1

70 89.2 9.5 79.1 64.8 33.5 10.4 74.5 2.5 8.3 1.3 1.0 1.5

75 94.8 11.8 77.6 64.1 21.4 3.2 75.9 1.9 10.2 4.4 - - 2.3

80 - - - - - - - - - - - - - - - - - - - - - - - -
% Table 16a .--Average empirical yields of timber for fully stocked stands

Type: Natural oak-pine Siter Medium Region: Southeast

: : : :

: :

Live trees per acre,

by d.b.h. class :

, Volume per acre

Stand : :

: Sample : (inches) :

Basal area i

: : :

age

plots :

:

per acre, :

: trees 5.0+

Total * Sawtimber

(years) : : : : :

* Standard

inches : aboveground : i Growing i

: : l.O+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : : trees l.O+ : error : stock : Saw-log ’ International

: : : : : : : : : : :

portion ’

:

k-inch rule

10 2 1 967 42 __ __

15 1 6 1,502 110 14 --

20 30 1,512 205 30 4

25 3 1 1,320 222 41 9

30 36 1,255 253 53 1 0

35 40 1,122 243 67 1 7

40 44 1,102 240 63 1 2

45 38 1,011 245 78 1 8

50 44 984 249 92 2 5

55 2 3 925 229 85 24

60 23 1,043 239 91 3 1

65 1 4 1,061 213 81 30

70 1 8 743 247 86 3 1

7 5 8 831 183 87 32

80 9 940 205 91 33

---w-e_- - Number - - - - -- -

Square

feet

--

1

2

4

2

5

5

6

5

7

1 0

8

8

1 0 464 7 5 122 - -

30 1,100 139 443 7 1

6 1 1,963 111 989 261

7 4 2,145 145 1,214 437

86 2,425 106 1,470 541

9 6 2,809 138 1,802 856

90 2,615 83 1,695 717

104 3,028 90 2,036 949

115 3,430 126 2,356 1,294

107 3,199 179 2,218 1,204

115 3,541 211 2,324 1,411

108 3,185 186 2,105 1,339

120 3,489 188 2,516 1,627

105 3,265 203 2,366 1,669

112 3,417 161 2,429 1,513

- Cubic feet - - - - - - -

Board

feet

386

1,430

2,358

2,946

4,662

3,904

5,211

7,019

6,574

7,656

7,254

8,935

9,103

8,341
Table 16b.--Average empirical yields of forest biomass for fully stocked stands

Type: Natural oak-pine Site: Medium Region: Southeast

: : :

Stand :

Species group

age

: Total ’ Standard ’

D.b.h. class (inches) i

l.O+ i

: : : :

error ’ Yellow ’ Other ’

:

(years) : : 5.0+ : 9.0+ : 13.0+ : 17.0+ :

Soft :

:

Gums Oaks

Hard

: : : : : : :

pines ; softwood ’

:

i hardwood i i hardwood

--------------------Green tons per acre - - - - - - - - - - - - - - - - - - - - -

10 17.6 2.8 6.1 -- --

15 4200 5.3 22.5 7.0 --

20 73.7 4.1 49.7 19.2 5.3

25 80.1 5.2 61.0 28.9 11.0

30 90.8 3.8 73.0 38.4 14.4

35 104.7 4.8 88.6 55.5 25.9

40 99.3 3.0 82.7 48.4 16.8

45 113.8 3.2 99.0 65.5 29.3

50 127.9 4.5 112.3 81.9 38.5

55 120.7 6.4 107.9 79.0 39.3

60 131.3 7.2 113.5 86.1 46.1

65 119.9 6.9 102.7 77.9 45.8

70 131.8 6.5 122.6 95.1 59.0

75 123.4 6.4 114.3 96.4 59.2

80 127.3 7.7 114.2 92.8 56.1

--

--

--

2.7

4.4

9.3

4.0

11.8

13.7

15.7

12.5

16.8

30.0

21.5

22.1

6.3 0.6 5.4 1.6 2.1 1.6

15.8 1.0 10.1 5.3 7.0 2.8

29.8 3.7 9.0 12.9 13.9 4.3

32.8 3.0 14.8 8.7 14.9 5.9

36.5 2.4 15.0 11.1 19.3 6.4

38.0 9.0 18.1 10.2 23.2 6.2

38.6 3.1 12.5 9.0 28.7 7.5

41.1 5.3 12.2 15.3 31.6 8.4

46.9 8.7 23.5 15.0 24.6 9.2

41.2 11.3 11.0 16.2 34.9 6.1

45.7 10.2 23.2 13.7 29.7 8.7

42.3 13.1 12.4 16.0 29.4 6.7

49.5 3.0 13.4 17.9 36.9 11.0

50.3 - - 14.7 13.7 32.8 11.9

46.0 4.0 16.5 25.8 29.9 5.1
Table 17a.--Average empirical yields of timber for fully stocked stands

Type: Natural oak-pine Site: High Region: Southeast

- ------1_ p_--_ll-- -___

: :

Live trees per acre, : :

Volume per acre

: :

.

by d.b.h. class * Basal area :

:

Stand :

___I_-- - -

:

: Sample : (inches) : : : :

age

per acre, : Sawt imber

: Total *

(years) :

plots :

-------111

-. trees 5.0+ s Standard i Growing i------

: : : : . : aboveground :

I__-

: l.O+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches error : stock : Saw-log i International: : trees l.O+ :

: :

: portion 1

:

g-inch rule

---------___-___-------_~l_-_- : : : : : : : .

--- -

%uare Board

-----___- Number - - - - - - - -

fee;- -----_ VI_ - Cubic feet - - - - - - -

- -

feet

10 4 1,099 75

- -

28 -- -- 29 964 170 574 204 1,115

15 5 1,112 87 18 5

- - 2 9 936 7 9 507 233 1,234

20 7 1,214 248 55 16 3 93 2,577 303 1,560 629 3,429

25 2 1,449 197 22 10 2 62 1,742 238 1,112 433 2,297

30 30 991 258 7 8 25 7 111 3,278 130 2,299 1,286 6,956

35 2 5 866 251 80 23 6 111 3,205 145 2,200 1,216 6,615

4 0 31 871 228 86 33 10 117 3,596 151 2,567 1,641 8,925

45 2 8 759 229 87 37 12 120 3,636 128 2,672 1,814 9,967

50 17 792 234 100 38 12 129 4,056 183 3,006 2,001 10,994

55 20 712 217 8 7 38 11 118 3,788 173 2,818 1,875 10,296

60 15 898 217 88 4 1 13 122 3,920 196 2,807 2,094 11,461

65 6 771 175 99 51 21 138 4,751 297 3,514 2,933 16,298

7 0 11 682 176 92 5 3 2 5 139 4,850 238 3,726 3,229 17,686

7 5 2 579 180 94 62 19 134 4,092 624 3,007 2,743 14,752

80 4 1,035 244 9 9 46 17 142 4,976 843 3,650 2,831 15,479

--- I__----- ~-~~~~--~-----~-_------~--~--_-.-~~
Table 17b .--Average empirical yields of forest biomass for fully stocked stands

Type: Natural oak-pine Site: High Region: Southeast

: : : D.b.h. class (inches) :

Stand :

age

: Total ’ Standard i

:

Species group

1.0+ ;

: : :

(years) : error ’ Yellow i

: :

: 5.0+ : 9.0+ : 13.0+ : 17.0+ :

Other ’ Soft :

Gums : Oaks :

Hard

: : : : : : :

pines : softwood ’

:

: hardwood ’

:

: hardwood

10 35.8 6.5 26.1 18.7 -- - - 15.0 - - 5.2 8.6 6.9 0.2

15 35.3 2.5 24.8 15.4 6.5 - - 11.1 4.3 5.3 5.5 6.1 3.1

20 94.2 11.6 80.4 45.5 23.5 9.2 34.7 4.8 18.5 20.9 14.1 1.1

25 66.2 9.0 52.8 20.6 13.7 4.2 37.6 - - 10.2 7.4 8.3 2.8

30 122.4 4.6 107.6 72.8 39.7 16.1 51.9 0.7 28.7 14.8 22.0 4.3

35 119.7 5.3 106.7 74.9 37.3 15.6 46.7 .7 25.1 15.2 23.1 8.9

40 134.4 5.7 121.9 94.6 59.7 27.8 51.2 4.1 20.1 19.9 32.7 6.3

45 136.4 4.8 126.6 101.5 68.8 33.3 50.1 4.0 29.2 13.4 32.4 7.3

50 150.1 6.9 139.1 113.9 74.6 37.0 52.8 1.4 37.5 22.1 27.8 8.5

55 143.1 6.6 132.0 106.6 70.9 30.3 47.0 2.7 23.5 20.5 37.2 12.3

60 147.2 7.8 136.6 114.9 84.2 43.3 58.3 .3 31.0 18.6 27.4 11.6

65 182.6 9.7 172.7 158.4 126.5 76.5 54.6 4.8 39.1 14.9 63.1 6.1

70 182.4 8.8 172.4 155.5 128.9 86.8 65:9 9.0 45.7 26.8 29.5 5.5

75 162.4 25.8 156.3 141.6 121.2 56.3 70.5 26.0 4.6 - - 53.7 7.6

80 185.0 31.3 170.6 144.6 108.1 62.0 62.1 17.0 37.3 31.1 26.3 11.1

--------------------- Green tons per acre - ---_--_-- - - - - - - - - - - -
8 Table 18a.--Average empirical yields of timber for fully stocked stands

Type: Natural oak-pine Site: Medium Region: Coastal Plain

: : Live trees : :

: : per acre, . : Volume per acre

Stand d.b.h. class: : by i Basal area (inches) : : : :

Sample : per acre, Total :

Sawtimber

age : : :

(years) : plots : : : : : : trees 5.0+ : aboveground :

Standard i Growing i

: : 1.0+ : 5.r)+ : 9.0+ : 13.0+ : 17.0+ : International inches : trees l.O+ : error stock : : Saw-log f

: : : : : : : : : : : : .

portion $-inch rule

10

15

20

25

30

35

4 0

45

50

55

60

65

70

7 5

80

Square Board

-------- - Number - - - - - - - feet ------ - Cubic feet - - - - - - - feet

10 946 45 -- -- - - 9 482 134 121 -- --

5 1,879 118 11 -- - - 31 1,252 213 445 69 364

21 1,420 202 33 5 - - 63 1,925 126 1,025 312 1,707

20 1,364 227 48 10 1 7 8 2,342 182 1,354 559 3,001

14 1,092 322 62 12 3 106 2,805 158 1,794 703 3,792

25 1,161 250 74 20 5 103 3,039 195 1,968 1,054 5,719

15 1,204 236 61 16 2 90 2,768 178 1,694 853 4,567

15 995 218 75 20 5 101 3,017 164 1,997 1,046 5,679

28 1,035 254 96 25 5 117 3,470 183 2,389 1,345 7,241

13 804 234 95 33 9 118 3,520 193 2,517 1,544 8,399

15 1,119 246 101 35 6 122 3,850 278 2,441 1,581 8,547

7 1,254 195 77 33 5 100 3,083 334 1,935 1,342 7,186

9 907 242 92 35 14 128 3,902 259 2,763 2,059 11,221

5 877 35 9 109 3,445 300 2,458 1,786 9,791

5 1,005 205 80 33 7 107 3,257 258 2,259 1,388 7,641
Table 18b.-- Average empirical yields of forest biomass for fully stocked stands

Type: Natural oak-pine Site: Medium Region: Coastal Plain

: : :

i Total

D.b.h. class (inches) :

Stand ' Standard i

:

Species group

age :

.

: : :

(years) :

l.O+ j error

: 5.0+ : 9.0+ I

' Yellow i

13.0+ : 17.0+ :

Other ' Gums Soft : Hard

: : : : : : :

pines : softwood =

:

i hardwood i Oaks i hardwood

10 18.0 5.0 6.1 --

15 48.0 8.6 22.9 5.3

20 72.0 4.7 50.9 21.8

25 86.8 6.3 66.4 34.0

30 102.9 6.0 87.6 44.8

35 111.1 6.8 95.0 63.7

40 102.5 6.3 82.0 49.3

45 112.2 5.1 95.9 65.8

50 126.8 6.5 111.0 81.8

55 131 .o 6.9 120.1 93.9

60 140.4 9.7 120.0 94.1

65 114.0 12.1 93.1 71.9

70 146.0 9.2 133.6 109.5

75 129.1 9.0 120.2 103.4

80 121.7 13.4 109.1 85.9

- - - -

--

--

6.3

12.3

16.6

30.8

21.1

32.5

38.0

53.5

51.7

45.6

73.7

66.2

55.5

Green tons per acre - - - -

- - 7.5 0.8 6.5 1.0 1.5 0.8

- - 21.4 - - 13.6 4.0 7.8 1.2

- - 29.1 4.9 10.6 11.1 13.4 2.9

2.8 37.7 2.7 19.9 7.6 13.8 5.2

5.7 41 l 4 2.1 21.5 15.1 19.4 3.3

11.8 43.5 12.4 22.3 10.5 16.4 5.9

3.6 42.4 7.7 17.0 10.9 18.2 6.4

14.9 43.7 10.4 13.8 14.2 25.8 4.2

12.9 49.5 10.7 33.6 13.2 17.0 2.8

21.9 49.1 12.4 17.3 17.0 30.0 5.1

14.4 49.0 11.9 32.6 17.6 22.7 6.6

11.8 45.3 19.3 18.0 14.1 15.4 1.9

42.9 60.7 5.5 22.2 17.4 24.7 15.6

26.7 50.2 - - 18.8 18.3 29.8 12.0

16.6 44.7 1.6 22.0 17.5 33.3 2.7
% Table 19a.--Average empirical yields of timber for fully stocked stands

Type: Natural oak-pine Site: Medium Region: Piedmont

: :

Live trees per acre, : :

: :

by d.b.h. class : :

Volume per acre

Stand : :

(inches)

: Basal area :

: : :

: Sample : per acre, : Sawtimber

age : Total :

(years) :

plots :

: : : :

: trees 5.0+

inches

: aboveground : Standard i Growing i

: : 1.0+ : 5.r)+ : 9.0+ : 13.0+ : 17.0+ : : trees 1.0+ :

error :

stock : Saw-log I International

$-inch rule

: : : : : : : : : :

: portion :

--------

- Number -

- - - - - - -

10 9 936 47 --

15 11 1,330 106 15

20 7 1,820 206 2 7

25 11 1,241 214 2 9

30 19 1,365 197 49

35 15 1,057 231 55

4 0 2 5 1,060 243 63

45 20 983 265 7 9

50 14 923 231 88

55 5 1,224 184 68

60 6 966 219 66

65 3 825 225 86

70 6 613 267 81

7 5 1 367 187 5 2

80 3 946 212 109

--

2

7

9

13

11

17

2 5

13

20

36

30

34

34

s1

1

2

2

4

6

2

4

12

8

3

6

Square

feet -------Cubic feet - - -

- - -

11 465 102 138 --

30 1,031 180 441 7 2

58 2,105 294 912 162

6 6 1,786 210 958 216

7 2 2,144 121 1,250 460

a5 2,424 129 1,527 528

91 2,566 92 1,712 682

107 3,053 118 2,099 899

110 3,397 126 2,315 1,247

81 2,481 220 1,495 683

94 2,714 140 1,886 967

123 3,504 9 5 2,476 1,664

116 3,252 246 2,430 1,285

90 2,926 - - 2,355 1,804

118 3,637 202 2,639 1,687

Board

feet

--

395

878

1,191

2,522

2,899

3,743

4,974

6,878

3,830

5,312

9,149

7,185

9,668

9,276
Table 19b.--Average empirical yi e Ids of forest biomass for fully stocked stands

ype: Natural oak-pine Site: Medium Region: Piedmont

: : :

Stand :

Total

D.b.h. class (inches) i Species group

age :

’ Standard i

: :

l.O+ i error : 5.0+ : 9.0+ : 13.0+ : ’

Yellow j Other ’ :

Soft ;

:

(years) : : 17.0+ : Gums : Oaks : Hard

: : : : : : : pines : softwood ; : hardwood : : hardwood

-------e__------____- Green tons per acre - - - - - - - - - - - - - - - - - - - - -

10 17.8 3.8 6.8 -- -- - - 6.9 0.4 4.2 2.4 2.3 2.5

15 39.3 6.8 22.4 7.8 -- - - 13.2 1.4 8.6 5.9 6.7 3.5

20 79.8 10.5 48.2 14.5 2.7 - - 33.2 1.3 6.7 17.1 12.6 9.0

25 67.8 8 . I. 51.3 19.7 8.6 2.6 24.0 3.5 5.7 10.6 16.9 7.1

30 81.1 4.4 62.3 35.5 12.8 3.2 30.9 2.5 12.3 9.0 19.0 7.4

35 93.9 5.0 77,9 41.9 17.8 5.1 28.8 3.2 11.2 9.6 34.4 6.7

40 98.6 3.5 83.8 48.3 16.3 4.4 38.2 .9 11.7 6.2 33.6 8.0

45 115.4 4.5 101.6 64.9 28.0 10*5 40.9 .7 12.7 16.1 35.1 9.9

50 131.5 4.7 115.6 85.8 41.8 17.2 44.4 3.2 6.5 19.0 38.8 19.5

55 96.2 8.3 78.4 55.9 20.3 5.5 31.6 3.0 4.2 9.6 39.3 8.5

60 104.4 4.9 90.7 61.9 29.4 8.5 35.7 5.4 7.1 4.6 36.9 14.7

65 132.7 3.9 120.9 94.4 60.3 30.8 45.2 - - 14.8 32.8 19.0 20.9

70 123.7 7-3 117.5 85.7 52.8 21.4 37.2 - - 6.9 26.8 43.4 9.5

75 108.5 -- 102.4 77.8 60.1 10.8 61.3 - - 23.7 - - 23.3 0.3

80 133.0 7.6 118.4 99.4 52.9 18.1 54.7 1.1 12.9 44.3 15.3 4.8
& Table 20a .--Average empirical yields of timber for fully stocked stands

Type: Oak-hickory Site: Medium Region: Southeast

: :

: :

Stand : :

age

: Sample :

Live trees per acre,

by d.b.h. class

(inches)

: :

: :

: Basal area :

:

Volume per acre

: :

Sawtimber

(years) :

plots :

:

per acre, : Total :

: : : : :

trees 5.0+ : aboveground : Standard i Growing i

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ :

inches : trees l.r)+ :error : stock : Saw-log i International

: : : : : : : : : :

: portion : k-inch rule

10

15

20

25

30

35

4 0

4 5

50

55

60

65

JO

75

80

Square Board

------_-- Number - - - - - - - -

feet ------- Cubic feet - - - - - - - feet

- -

2 7 917 33 -- -- -- 7 347 59 94 - - - -

3 9 1,173 92 12 -- -- 25 911 9 9 336 43 241

14 1,577 117 23 5

- - 3 7 1,446 137 551 150 859

31 1,365 199 40 7 1 6 7 2,101 83 1,125 309 1,736

5 5 1,280 221 44 8 2 76 2,279 78 1,310 380 2,169

44 1,154 213 55 13 3 82 2,474 110 1,472 515 2,942

80 860 234 76 19 4 99 2,864 7 7 1,878 712 4,103

73 871 240 76 21 4 102 2,997 88 1,987 771 4,428

6 7 854 228 78 21 5 102 3,023 8 7 2,035 814 4,708

60 706 213 85 30 8 110 3,200 7 0 2,195 1,101 6,356

5 9 664 212 92 33 9 114 3,402 86 2,394 1,241 7,168

3 7 642 205 88 3 3 8 111 3,296 88 2,367 1,237 7,198

55 608 182 94 4 0 14 117 3,640 124 2,612 1,584 9,197

26 733 193 82 38 13 113 3,581 147 2,526 1,481 8,595

2 7 608 189 87 43 16 125 3,784 138 2,748 1,789 10,284
Table 20b.-- Average empirical yiel.ds of forest biomass for fully stocked stands

Type: Oak-hickory Site: Medium Region: Southeast

: : :

Stand : Total :

D.b.h. class (inches) :

Standard i

:

Species group

age :

l.O+ ;

: : : : :

(years) : error ' Yellow i

: 5.0+ : 9.0+ : 13.0+ : 17.0+ :

Other ' Hard

softwood :

Gums :

Soft ;

Oaks :

: : : : :. : :

pines :

:

: hardwood : : hardwood

1 0 14.1 204 5.3 --

15 35.6 3.7 20.2 608

2 0 57.3 5.0 30.6 15.8

2 5 81.9 3.2 60.4 29.4

3 0 89.5 3.0 69.9 36.1

3 5 96.5 4.1 78.3 47.4

40 112.6 2.8 99.9 68.2

45 118.0 3.5 105.0 71.1

5 0 120.2 3.5 107.0 74.9

55 126.8 2.8 117.2 91.5

6 0 135.1 3.2 125.6 101.7

6 5 132.2 3.5 125.0 102.1

7 0 145.6 5.0 137.2 119.9

7 5 144.8 6.2 134.7 112.3

8 0 150.0 5.8 142.2 122.9

_------_-- - - - - - - -

--

--

5.6

10.1

14.5

20.2

31.8

34.5

36.9

54.5

61.2

63.7

83.2

80.6

92.5

- Green tons per acre - - -------------------

- - 2.3 0.1 1.4 2.2 5.8 2.3

- - 3.3 .7 6.1 8.5 11.8 5.2

-- 4.9 - - 5.4 13.2 26.4 7.3

3.7 9.3 1.4 14.2 13.1 32.2 11.5

7.1 9.9 l 4 10.8 11.1 45.3 12.0

7.5 6.4 .8 13.1 20.2 39.6 16.4

12.6 6.1 .7 12.7 20.2 54.8 18.1

11.3 7.7 1.5 10.4 19.4 61.6 17.4

14.8 6.2 1.5 9.1 16.6 69.0 17.9

23.6 9.0 1.3 10.1 20.6 69.4 16.4

26.6 5.8 3.2 9.1 20.0 75.2 21.9

27.9 4.6 1.0 10.4 17.6 71.1 27.5

42.7 4:9 2.5 10.2 20.3 81.9 25.7

41.6 5.4 1.2 9.4 19.2 83.8 25.7

53.1 3.5 9.8 9.8 22.2 78.6 26.2

t
2 % Table 21a .--Average empirical yields of timber for fully stocked stands

Type: Oak-hickory Site: High Region: Southeast

: :

: per acre,

Live trees : :

:

:

. Volume per acre

Stand : : by d.b.h. class Basal area :

age : Sample :

(inches) :

: : :

plots : : : :

:

per acre, I Total Sawtimber

:

(years) : : : trees 5.0+

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches

: aboveground : Standard i Growing i

: trees l.O+ : error : stock : Saw-log i International

: : : : : : : : : : : portion : k-inch rule

10

15

20

25

30

35

4 0

45

50

5 5

60

65

70

7 5

80

Square Board

-------_- Number - -

- - s - - -

feet e a

..---

- - Cubic feet - - - - - - - feet

6 1,201 57 10 -- - - 18 560 119 243 50 283

4 615 64 12 3 - - 2 3 729 232 377 165 920

8 768 197 41 11 3 7 7 2,109 250 1,493 585 3,368

7 1,060 239 62 9 1 85 2,479 251 1,506 526 2,972

22 913 222 77 24 5 100 2,905 169 1,975 939 5,389

29 872 232 88 26 5 111 3,319 132 2,342 1,119 6,406

45 746 232 95 33 8 118 3,486 119 2,523 1,337 7,631

40 744 231 91 35 11 120 3,660 134 2,607 1,395 7,989

45 645 220 90 35 11 118 3,470 100 2,492 1,344 7,712

37 668 206 90 43 15 125 4,073 149 3,014 1,927 11,052

26 589 192 95 45 18 127 4,090 169 3,034 2,054 11,808

19 621 205 89 41 14 121 3,726 171 2,737 1,599 9,207

13 711 194 95 49 16 129 4,088 165 3,028 2,055 11,827

8 534 191 102 53 2 2 144 4,839 323 3,726 2,705

16 460 172 91 51

15,645

2 3 133 4,414 220 3,159 2,273 13,171
Table 21b.--Average empirical yields of forest biomass for fully stocked stands

Type : Oak-hickory Site: High Region: Southeast

: : : D.b.h. class (inches) :

Stand :

Species group

age

i Total ’ Standard i

: : : : :

(years) : 1.0+ ; error: 5.0+ ’ Yellow ’

: 9.0+ : 13.0+ : 17.0+ :

Other ’

Gums :

Soft i

Oaks :

Hard

: : : : : : :

pines ; softwood :

:

: hardwood : : hardwood

10 22.5 4.5 14.1 6.4

15 28.3 8.9 21.5 11.1

20 79.3 8.7 70.7 39.6

25 94.5 9.5 74.6 44.0

30 110.8 6.1 97.0 71.2

35 127.4 4.9 115.9 87.2

40 133.2 4.5 122.7 96.7

45 140.4 5.3 129.1 101.3

50 134.2 3.8 125.3 99.4

55 158.1 5.5 147.8 125.5

60 158.8 6.3 150.6 132.9

65 144.6 6.1 135.8 113.3

70 159.9 6.2 150.7 133.7

75 189.2 12.9 184.1 167.5

80 174.8 8.7 168.1 155.1

----s--_-ee---m- - - - - Green tons per acre - - - -

- - - - 3.7 - -

5.2 - - 3.9 - -

22.7 11.1 3.7 0.7

13.8 2.7 12.4 1.2

38.0 15.1 8.3 .4

46.8 17.5 9.1 .8

55.9 21.8 12.0 .5

64.6 30.1 10.7 .l

62.5 28.8 6.1 3.3

90.0 48.7 12.5 1.2

97.6 56.5 10.8 .l

80.0 42.2 6.0 2.6

103.3 51.1 11.5 .l

130.3 79.4 6.8 1.1

126.7 82.9 8.0 1.0

----------e--v1.9 6.6 7.5 2.9

4.8 5.9 11.8 1.9

8.9 33.0 15.3 17.8

21.0 21.7 26.3 11.9

23.5 39.6 23.9 15.1

24.9 36.1 41.2 15.4

24.5 37.3 42.8 16.1

27.3 39.9 48.5 14.0

21.8 34.1 45.2 23.6

29.7 38.5 52.1 24.2

35.4 35.4 51.8 25.3

18.3 40.8 52.0 24.8

26.1 40.6 51.9 29.7

49.6 41.9 61.5 28.2

17.7 31.9 83.5 32.7
: Table 22a .--Average empirical yields of timber for fully stocked stands

Type: Oak-hickory Site: Medium Region: Coastal Plain

: : Live trees : :

: : per acre, : :

Volume per acre

Stand d.b.h. class: . b y Basal area

Sample : .

(inches)

: : : : :

Sawtimber

age :

p1ots : :

:

per acre, : Total :

(years) : : : : : trees 5.0+

: : 1.0+ : 5.0+ : 9.0+ : 13.0+: 17.0+ : inches

: aboveground : Standard i Growing i

: trees l.O+ : error : stock : Saw-log i International

: : : : : : : : : : : portion : k-inch rule

10

15

20

25

30

35

4 0

4 5

50

55

60

65

70

7 5

80

Square Board

------- - - Number _ - - - - - - - feet ------ - Cubic feet - - - - - - - feet

13 721 36 -- -- - - 8 299 69 104 - - - -

16 1,105 87 15 -- - - 25 903 117 350 54 300

5 1,385 77 11 3 - - 2 2 915 127 314 84 465

11 1,171 213 40 7 2 69 2,120 173 1,133 326 1,818

20 1,181 214 47 10 4 7 8 2,343 172 1,400 515 2,920

13 1,203 213 58 15 3 84 2,723 184 1,577 531 3,032

22 797 223 76 21 7 101 2,850 194 1,805 826 4,732

11 903 203 68 20 5 9 2 2,815 199 1,883 762 4,405

15 986 254 87 26 6 116 3,440 256 2,337 1,001 5,772

18 661 197 86 34 11 112 3,283 134 2,251 1,309 7,543

13 663 209 92 32 12 120 3,708 165 2,645 1,514 8,746

9 716 207 94 35 7 114 3,573 142 2,566 1,395 8,072

9 456 165 87 45 21 124 4,082 441 2,929 2,050 11,972

9 922 185 76 34 12 110 3,745 273 2,656 1,631 9,431

5 654 182 82 45 18 130 4,069 333 3,084 2,271 12,828
Table 22b.-- Average empirical yields of forest biomass for fully stocked stands

Type: Oak-hickory Site: Medium Region: Coastal Plain

: : : D.b.h. class (inches) :

Stand

i Total ’ Standard f

:

Species group

age 1.0+ ; error ’

: : : : :

(years) : : 5.0+ ’ Yellow i: 9.0+ : 13.0+ : 17.0+ :

Other i Gums Soft j Oaks :

Hard

: : : : : : :

pines ; softwood 1 i hardwood hardwood

. : :

10 12.1 2.8 5.5

15 36.1 4.4 20.6

20 38.2 5.1 16.8

25 82.5 6.4 63.1

30 91.1 6.7 74.3

35 105.9 6.4 85.3

40 108.7 6.2 97.4

45 112.7 a.1 100.7

50 135.2 10.5 122.7

55 127.9 5.3 120.2

60 144.7 6.2 135.4

65 141 .a 5.9 132.4

70 164.6 la.0 159.9

75 151.7 11.6 139.7

a0 155.7 16.2 147.9

---_--_-Green tons per acre - - -

a.1

7.6

30.5

42.5

52.0

69.8

69.3

86.1

99.3

111.7

110.3

144.9

116.3

130.5

2.4

11.1

19.7

24.5

35.7

34.7

43.8

64.7

70.2

67.2

114.3

82.4

106.2

--

--

--

3.6

11.7

9.6

18.7

13.1

16.6

31.1

38.6

26.3

73.8

44.1

66.1

2.3

3.2

4.8

9.7

9.8

6.3

8.8

a.2

6.6

11.5

a.1

6.1

5.3

9.1

11.1

0.2

.2

- -

.3

.5

.5

.2

l 5

1.0

18.4

----------w--e

1.9 2.3 4.6 1.0

7.2 4.7 15.6 5.1

a.3 2.8 19.4 2.9

18.2 13.4 36.3 4.8

16.5 12.2 44.0 a.4

19.7 21.8 41.9 16.2

19.9 16.7 46.4 16.7

14.4 a.2 70.3 11.1

21.8 15.2 77.2 14.0

20.5 25.2 54.9 15.8

22.6 24.2 68.5 21.2

30.4 18.3 57.5 28.9

16.3 15.9 106.5 20.5

17.3 il.8 90.1 22.3

31.7 21.2 32.8 40.5

e--e
2 Table 23a.--Average empirical yields of timber for fully stocked stands

Type: Oak-hickory Site: High Region: Coastal Plain

: : : :

: :

Live trees per acre,

. Volume per acre

:

by d.b.h. class :

Stand :

: Sample :

(inches)

i Basal area :

: : :

Sawt imber

age

(years) :

plots :

:

per acre, : Total ’

: : : : :

trees 5.0+ e Standard : aboveground : i Crowing i

stock

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches : trees l.O+ :

error :

: Saw-log j International

: : : : : f : : : :

: portion : k-inch rule

Square

-------- - Number - - - - - - - -

feet ------- Cubic feet - - - - - - -

Board - -

feet

10 3 1,135 42 8 - - - - 1 5 548 140 278 88 490

1 5 2 393 42 1 1 3

- - 1 5 469 410 182 68 382

20 1 766 165 1 7 1 2 3 60 1,854 - - 1,285 587 3,278

25 1 1,054 276 31 -- -- 7 5 2,741 - - 1,459 384 2,155

30 6 1,135 206 7 1 29 7 99 2,913 394 1,952 1,036 5,929

35 5 1,098 181 7 2 3 1 1 1 100 3,167 195 2,102 1,188 6,796

40 7 780 206 98 45 1 2 127 3,833 266 2,772 1,713 9,720

45 7 695 235 88 32 1 4 116 3,666 397 2,504 1,343 7,667

50 3 474 221 101 2 5 8 121 3,439 263 2,555 1,347 7,576

55 8 629 206 105 50 1 4 135 4,555 375 3,397 2,221 12,703

60 4 593 203 96 34 1 1 120 3,809 351 2,832 1,891 10,784

65 1 227 227 116 76 5 1 188 5,945 - - 4,477 3,586 20,704

70 2 595 194 81 45 1 2 116 3,412 350 2,432 1,629 9,413

75 3 709 182 113 55 2 5 151 5,422 598 4,122 3,097 17,785

80 3 408 141 7 7 53 26 139 4,611 880 3,124 2,578 14,809
Table 23b.--Average empirical yields of forest biomass for fully stocked stands

Type: Oak-hickory Site: High Region: Coastal Plain

: : : D.b.h. class (inches) :

Stand :

Total ’ Standard f

:

Species group

age : * : : (years) : 1.0+ i error : 5.0+ : 9.0+ : 13.0+ .

I

’

17.0+ : Yellow Other

pines

i

softwood

i

: Gums Soft ;:

: Oaks : Hard

: : : : : : : : : : hardwood : : hardwood

-----------------__- - Green tons per acre - - - - - - - - - - - - - - - - - - - - -

10 22.2 5.5 13.7 6.2 -- - - 4.6 - - 1.4 3.9 12.3 - -

15 18.4 16.1 12.8 7.5 3.4 - - 3.1 - - 5.1 2.5 7.5 0.1

20 72.0 -- 64.2 29.2 24.6 9.7 12.5 - - 25.9 - - 28.8 4.9

25 110.7 -- 79.0 25.4 -- - - 8.0 - - 23.6 0.1 79.0 - -

30 110.2 13.5 94.8 70.8 42.9 18.5 12.2 - - 35.6 34.0 21.3 7.1

35 125.1 7.2 114.0 89.0 60.6 28.1 10.4 - - 31.0 11.2 64.4 8.0

40 149.4 11.4 139.0 116.8 80.8 35.4 19.6 - - 27.3 15.5 85.2 1.9

45 142.7 16.5 130.7 103.8 65.0 36.9 11.6 0.8 31.1 32.2 54.4 12.7

50 128.9 10.7 124.3 96.3 41.6 21.0 20.7 - - 31.1 12.0 61.9 3.3

55 175.3 13.2 166.2 143.9 102.6 46.3 15.1 2.0 61.0 29.5 57.9 9.7

60 147.6 11.9 139.5 120.7 81.7 46.1 15.9 - - 52.1 12.0 60.7 6.9

65 219.5 -- 219.5 201.0 179.7 147.3 - - - - 48.8 145.0 15.9 9.8

70 134.6 11.0 129.5 110.5 87.1 42.8 7.6 - - 28.9 11.4 46.8 39.9

75 210.9 28.1 204.8 192.0 146.1 91.8 12.9 2.9 93.4 19.2 72.5 10.1

80 182.1 36.4 178.2 166.5 145.8 103.6 20.0 - - 43.8 10.3 99.2 8.9
F Table 24a .--Average empirical yields of timber for fully stocked stands

Type: Oak-hickory Site: Medium Region: Piedmont

: : : :

: :

Live trees per acre,

: :

Volume per acre

Stand : :

by d.b.h. class

: Sample : (inches)

: Basal area : : : :

Sawtimber

age

(years) :

plots :

:

per acre, :

Total : :

: : : :

: trees 5.r)+ : aboveground :Standard : Crowing i

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ :

inches : trees l.O+ : error : stock : Saw-log i International

: : : : : : : : : :

: portion : g-inch rule

--------- Number- - - - - - - -

Square

feet - - - - - - - Cubic feet - - - - - -

Board

feet - -

10 9 1,010 37 -- -- -- 8 391 142 101 -- --

1 5 1 9 1,205 105 10 -- -- 2 7 972 175 357 35 199

20 9 1,683 140 30 6 -- 45 1,740 113 682 187 1,078

25 1 8 1,465 192 39 5 1 6 5 2,075 7 2 1,119 272 1,546

30 28 1,354 224 40 8 2 7 4 2,283 88 1,272 307 1,758

35 24 1,137 202 53 1 2 3 7 7 2,272 147 1,356 502 2,873

40 41 917 240 76 1 9 3 99 2,919 9 7 1,934 668 3,865

45 43 860 238 81 23 4 104 3,099 127 2,067 836 4,796

50 36 836 221 75 20 4 98 2,919 101 1,963 785 4,542

55 2 6 760 203 84 30 9 107 3,182 90 2,239 1,127 6,521

60 2 9 600 208 92 33 8 113 3,306 129 2,383 1,234 7,142

65 1 3 603 188 87 38 1 0 112 3,325 130 2,437 1,409 8,212

70 30 599 176 99 40 1 2 115 3,548 176 2,568 1,532 8,892

75 11 562 180 84 43 1 4 114 3,604 225 2,571 1,588 9,225

80 9 588 161 95 50 1 9 128 4,008 231 2,915 1,925 11,265
Table 24b.--Average empirical yields of forest biomass for fully stocked stands

Type : Oak-hickory Site: Medium Region: Piedmont

. . l

Stand ’ Total ’ Standard ’

D.b.h. class (inches) Species group

age :

l.O+ ;

. .

(years) : error *

: :

: 5.0+ : 9.0+ : 13.0+ I ’ Yellow i17.0+ : pines :

Other i

:

Soft ;

:

Gums : Oaks :

Hard

: : : : : : :

softwood

: :

hardwood :

:

hardwood

- - - - ----Green tons per acre - - - -

10 15.9 5.7 6.6 --

15 37.2 6.6 21.6 6.4

20 67.9 3.9 38.2 20.4

25 81.2 3.0 58.3 27.9

30 90.1 3.4 68.4 32.4

35 88.5 5.5 71.6 44.5

40 116.2 3.9 102.1 68.4

45 122.0 5.1 108.1 76.3

50 116.4 4.1 102.2 72.2

55 127.2 3.6 117.4 93.1

60 131.7 5.0 123.9 100.4

65 133.9 5.5 128.5 109.2

70 142.0 6.9 133.8 118.0

75 145.4 9.4 135.6 116.6

80 164.2 9.6 158.1 144.2

--

--

7.5

8.1

12.3

18.9

30.3

36.8

35.5

56.2

60.2

74.0

78.5

88.0

113.9

--

--

3.1

4.9

6.6

9.0

11.1

13.2

26.0

24.0

34.4

35.7

46.1

63.8

2.8

3.8

5.0

9.2

10.1

7.5

5.9

8.9

7.7

8.2

6.8

5 :3

5.9

4.8

3.5

--

1.4

- -

1.0

0.7

.4

l 4

1.8

1.2

.9

1.9

.2

1.2

.9

.3

1.0 1.2 8.5 2.3

6.3 11.1 9.5 5.1

3.8 18.9 30.4 9.8

13.4 12.1 30.2 15.3

8.4 11.0 47.3 12.6

13.2 18.4 35.5 13.5

13.1 18.1 60.7 17.9

13.2 19.6 61.7 16.9

6.6 16.2 67.2 17.6

7.9 19.4 75.5 15.3

7.5 20.5 76.4 18.6

6.7 23.1 73.5 25.2

12.8 17.8 76.8 27.5

7.2 29.6 75.4 27.4

11.4 12.7 112.7 23.6
Table 25a .--Average empirical yields of timber for fully stocked stands

Type: Oak-hickory Site: High Region: Piedmont

: :

Live trees per acre, : :

: : .

Volume per acre

Stand : :

by d.b.h. class :

Sample . (inches)

i Basal area :- : : :

age :

plots ;

:

per acre, :

Total :

Sawtimber

(years) : : : : :

: trees 5.0+ : aboveground :Standard i Crowing i

: : 1*F)+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : inches : trees l.O+ :

error stock :

: Saw-log ' International

: : : : : : : : : : :

portion i g-inch rule

-------- _ Number- - - - - - - -

Square

feet - - - - - - - Cubic feet - - - - - - -

Board

- - feet

10

1 5

20

25

30

35

40

45

50

55

60

65

70

75

80

2 1,778 36 -- -- -- 8 363 145 52 -- --

1 970 70 1 7 a

-- 30 1,128 -- 750 450 2,477

5 630 217 46 1 2 5 88 2,239 400 1,647 647 3,754

3 1,163 322 69 1 1 2 111 2,878 399 1,838 498 2,837

a 825 239 7 5 1 8 6 101 2,856 183 1,893 856 4,910

1 9 800 243 88 25 4 111 3,251 125 2,328 1,074 6,161

26 774 231 93 29 5 112 3,217 127 2,324 1,126 6,426

2 5 705 222 90 3 7 11 121 3,625 1.57 2,588 1,395 8,013

24 588 224 88 3 7 11 120 3,486 149 2,563 1,404 8,109

1 9 722 203 82 41 1 6 119 3,823 215 2,809 1,834 10,542

1 0 568 202 99 47 1 8 129 4,022 321 2,981 1,948 11,200

1 2 665 196 84 35 1 3 115 3,581 118 2,644 1,523 8,755

7 687 199 9 7 5 1 1 8 135 4,257 216 3,227 2,247 12,868

3 511 191 103 55 2 1 144 4,586 513 3,610 2,657 15,405

6 516 192 99 50 23 134 4,407 184 3,309 2,258 13,074
Table 25b. --Average empirical yields of forest biomass for fully stocked stands

Type: Oak-hickory Site: High Region: Piedmont

: : : D.b.h. class (inches) :

Stand : Total : :

Species group

age :

1.0+ ;

Standard f

error *

: : :

(years) : ’ Yellow j

: 5.0+ : 9.0+ : 13.0+ : 17-o+ :

Other ’

:

Soft i

:

Gums : Oaks :

Hard

hardwood

: : : : : : :

pines : softwood :

:

: hardwood

: :

10 14.9 5.5 2.7 --

15 41.8 - - 33.9 21.4

20 84.1 13.9 77.0 44.1

25 107.6 12.7 88.4 46.2

30 110.1 6.9 96.4 68.8

35 124.9 5.0 114.1 84.5

40 122.7 4.8 111.5 85.7

45 139.4 6.1 128.6 100.9

50 135.7 5.5 128.8 102.6

55 148.6 8.0 136.7 115.2

60 158.1 12.5 149.8 131 l 1

65 139.0 4.3 129.1 106.8

70 164.4 7.8 154.6 137.9

75 178.6 17.7 173.5 157.0

80 174.3 5.6 165.5 151.3

-- - - 3.1 - -

13.8 - - 9.3 - -

25.1 15.9 1.0 - -

15.7 6.3 11.9 2.8

36.1 18.9 7.5 1.0

44.1 13.7 9.2 0.3

44.8 13.4 11.4 - -

65.7 29.8 9.0 - -

67.8 30.8 5.1 .7

84.8 47.8 12.0 - -

94.3 52.5 11.3 - -

72.4 40.1 9.3 - -

109.3 56.4 14.7 - -

123.6 73.1 5.2 - -

117.9 73.1 9.8 - -

Green tons per acre - - - -

3.5 3.2 4.0 1.0

8.8 11.8 9.6 2.3

5.6 39.9 18.3 19.3

40.3 26.7 11.2 14.7

26.9 27.1 31.8 15.8

24.8 31.1 44.5 14.9

23.2 34.2 37.0 16.9

30.4 36.2 49.9 13.9

29.0 32.0 43.0 25.9

22.0 40.4 50.1 24.1

24.3 33.0 52.1 37.4

24.3 32.3 46.4 26.7

31.4 52.0 31.6 34.6

11.1 77.9 47.7 36.7

6.6 42.1 71.4 44.4

---e-----w-- - -
Table 26a.-- Average empirical yields of timber for fully stocked stands

Type: Oak-hickory Site: Medium Region: Mountain

: : : :

: :

Live trees per acre, . :Volume per acre

Stand : :

by d.b.h. class

(inches)

i Basal area : : : :

age

: Sample : :

per acre, :

Total :

Sawtimber

plots :--- -

(years) : : : : :

: trees 5.0+

inches : aboveground :

Standard i Growing i

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : : trees l.O+ :

error : stock : Saw-log i International

: : : : : : : : : :

: portion : g-inch rule

10

1 5

20

25

30

35

40

45

50

55

60

65

70

75

80

-------

5 1,276

4 1,299

..- --

2 1,535

7 1,267

7 1,122

1 7 800

1 9 879

1 6 773

1 6 668

1 7 772

1 5 632

1 6 710

6 760

1 3 604

- - Number - - ----__

20 --

50 6

-- --

184 45

232 51

251 58

233 75

266 69

218 75

249 86

221 92

219 85

203 88

230 90

211 84

-- --

-- --

1 4 4

7 2

1 0 2

1 8 4

20 5

1 8 6

25 4

3 1 8

2 7 8

38 1 3

3 5 11

36 14

Square

feet

5

1 4

--

7 1

7 8

94

98

105

99

112

112

109

116

117

120

-------

404

656

- -

2,239

2,079

2,709

2,748

2,871

2,864

3,136

3,334

3,105

3,565

3,291

3,519

Cubic feet - - -

122 5 7

174 176

-- --

846 1,143

128 1,203

290 1,676

121 1,838

130 1,865

113 1,912

164 2,063

146 2,222

154 2,187

111 2,516

280 2,250

190 2,503

--

35

--

543

293

528

669

628

706

824

1,044

992

1,419

1,060

1,508

Board

feet

--

200

--

3,000

1,666

3,010

3,862

3,607

4,084

4,752

6,005

5,794

8,209

6,185

8,626
Table 26b.-- Average empirical yields of forest biomass for.fully stocked stands

Type: Oak-hickory Site: Medium Region: Mountain

: : : D.b.h. class (inches) :

Stand i Total ’ Standard i:

Species group

age 1.0+ i error *

: : :

’ Yellow i Other ’

:

(years) : : 5.0+ : 9.0+ : 13.0+ : 17.0+ :

Soft ;

:

Gums : Oaks :

Hard

: : : : : : :

pines : softwood =

:

: hardwood : : hardwood

10 16.6 5.1

15 25.6 6.6

20 -- --

25 84.8 31.5

30 82.6 5.2

35 106.4 12.1

40 108.7 4.9

45 112.0 5.1

50 114.8 4.6

55 124.9 6.7

60 133.7 5.6

65 124.9 6.1

70 141.6 4.5

75 133.2 12.0

80 138.1 7.0

- - - - - m-e - - - - -

2.7

11.4

--

64.3

62.7

88.0

98.0

100.7

103.2

113.5

121.2

117.7

130.8

125.7

128.9

-e---e- - Green tons per acre - -

- - -d - - 1.6 0.5

3.9 -- -- 0.7 --

-- -- -- -- --

37.4 22.0 9.6 a.4 13.1

32.6 8.3 2.7 9.2 --

49.0 16.6 6.6 2.8 3.6

65.8 30.5 13.3 2.8 2.2

60.2 29.4 10.5 4.6 1.5

70.6 33.4 16.9 2.6 3.0

80.3 40.2 11.4 7.5 3.3

96.1 55.9 22.0 2.2 7.7

91.0 52.7 23.3 3.2 1.9

109.4 74.6 38.4 3.0 6.2

98.5 64.4 29.5 .7 2.2

105.3 72.4 40.7 .5 13.1

-----------------

0.7

.2

--

--

4.2

.4

2.3

1.8

2.6

1.9

1.6

1.5

1.8

1.3

.2

3.5 4.5

11.2 7.4

- - - -

20.9 28.7

7.9 41.4

23.4 49.5

29.6 51.4

25.3 56.5

18.7 65.4

17.4 75.9

15.9 78.3

12.5 77.1

27.6 77.7

11.4 89.8

29.2 72.6

5.7

6.0

--

13.7

19.8

26.6

20.5

22.3

22.5

19.0

28.0

28.6

25.3

27.8

22.4
8 Table 27a .--Average empirical yields of timber for fully stocked stands

Type: Oak-hickory Site: High Region: Mountain

: : : :

: :

Live trees per acre, . .:Volume per acre

Stand : :

by d.b.h. class

(inches)

* Basal area :

: : : :

Sawtimber

age

: Sample Sample :: :

per acre, t/\-L UI.... :

Total :

(years) :

plots plots :

: : : : : : trees 5.0+ : trees 5.0,

inches : aboveground :

Standard i Growing i-

: 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : : trees l.O+ : error stock: :

: Saw-log i International

: : : : : : : : : :

: portion : k-inch rule

. ---

Square

------- - - Number - - - - - - - - feet -_---- - Cubic feet - - - - - - -

Board

feet

1 0 1 248 148 35 -- -- 49 991 -- 519 39 228

1 5 1 704 103 11 -- -- 30 850 -- 395 7 5 440

20 1 1,481 81 1 9 19 -- 38 1,735 -- 997 615 3,505

25 2 881 161 66 9

-- 66 2,043 456 1,222 525 2,956

30 4 714 249 109 38 6 123 3,604 297 2,619 1,247 7,207

35 3 656 222 103 1 4 3 105 3,187 315 2,263 891 5,074

40 6 567 240 113 36 11 129 4,030 521 3,042 1,691 9,755

45 3 823 289 108 35 -- 126 3,530 635 2,546 1,023 5,889

50 1 2 829 217 92 2 8 8 109 3,272 153 2,249 1,112 6,316

55 5 459 206 102 43 1 2 133 4,181 207 3,097 1,747 10,104

60 5 501 161 78 5 1 1 9 122 3,912 290 2,797 1,938 11,283

65 6 599 218 93 46 1 0 124 3,645 310 2,632 1,420 8,195

70 1 693 193 112 65 3 1 154 4,640 -- 3,534 2,605 15,164

75 - - -- -- - - - - - - - - - - - - - - - - - -

80 3 456 202 99 49 1 8 134 3,875 510 2,444 1,530 8,902
Table 27b.--Average empiric: * yields of forest biomass for fully stocked stands

Type: Oak-hickory Site: High Region: Mountain

: : : :

Stand :

D.b.h. class (inches)

Total ’

:

Species group

age :

1.0+ ;

Standard i

error

: : : : :

(years) : : 5.0+ : 9.0+ : 13.0+ : 17.0+ :

’ Yellow i Other ’

Gums :

Soft ;

Oaks :

Hard

: : : : : : :

pines : softwood i : hardwood

:

: hardwood

----------------___- - Green tons per acre - - - - - - - - - - - - - - - - - - - - -

10 38.6 -- 37.8 19.5 -- -- 2.1 - - - - 21.4 - - 15.2

15 34.6 -- 26.4 8.0 -- -- -- - - 0.2 6.8 22.6 5.1

20 64.4 -- 43.6 31.6 31.6 -- -- 5.6 - - 41.3 - - 17.4

25 78.3 22.7 60.0 45.7 13.3 -- 11.2 - - - - 25.9 24.4 16.8

30 137.2 10.7 124.8 99.4 51.8 12.9 3.3 - - 1.8 76.4 21.6 34.0

35 119.4 11.8 105.2 79.9 23.1 8.4 1.6 5.2 .7 74.1 - - 37.8

40 153.3 18.3 146.5 124.9 71.2 31.4 2.9 3.6 2.0 77.6 33.5 33.8

45 131.2 24.9 116.2 86.4 39.1 -- 6.5 - - 3.6 72.4 25.1 23.6

50 127.4 6.1 114.0 89.0 50.9 23.1 2.7 11.0 1.8 33.3 53.5 25.1

55 165.3 10.8 158.9 136.5 91.7 42.7 -- 5.6 1.0 53.3 38.0 67.4

60 151.5 11.2 141.6 123.9 102.0 53.0 -- - - .6 60.1 49.6 41.1

65 143.4 12.1 135.4 111.7 78.5 28.7 0.4 8.3 1.3 40.5 69.2 23.6

70 180.4 -- 174.8 163.8 134.1 82.9 -- 0.8 - - 78.0 61.5 40.0

75 - - - - - - - - - - - - - - - - - - - - - - - -

80 153.2 20.1 145.8 131.3 97.5 57.4 -- 5.3 4.1 20.3 111.1 12.5
E Table 28a .--Average empirical yields of timber for fully stocked stands

Type: Oak-gum-cypress Site: Medium Region: Southeast

: : Live trees : :

: : per acre, Volume acre per

Stand : by d.b.h. class

: :

:

Sample :

(inches) : Basal area : : : :Sawtimber

age :

plots : : : :

-

: per acre, : Total :

(years) : : : trees 5.r)+ : aboveground : Standard i Growing i

: : l.O+ : 5.r)+ : 9.0+ : 13.0+ : 17.9+ : inches : trees l.O+ : error stock Saw-log International : : i

: : : : : : : : : : : portion k-inch rule :

- - -

Square Board

-------- - Number - - - - -- - - feet ------ Cubic feet - - - - - - - - feet

10 7 1,202 22 -- -- - - 5 350 104 85 -- --

1 5 7 1,520 27 6 -- - - 9 796 225 117 38 197

20 16 2,294 191 29 3 - - 52 2,096 226 746 189 991

25 23 2,020 246 46 10 3 85 2,797 237 1,340 445 2,449

30 46 1,566 293 59 13 4 103 3,233 191 1,714 550 3,067

35 62 1,264 308 80 21 6 117 3,421 144 1,959 733 4,098

40 87 1,052 312 96 29 8 136 3,801 128 2,351 1,016 5,668

45 82 973 299 102 28 7 134 3,812 147 2,411 1,042 5,843

50 110 975 304 110 32 9 145 4,052 123 2,530 1,194 6,677

55 79 872 275 111 40 1 0 145 4,126 142 2,680 1,351 7,616

60 108 886 296 122 41 11 155 4,530 135 3,014 1,603 8,955

65 70 843 310 133 50 1 5 171 4,800 170 3,225 1,864 10,410

70 63 877 280 139 56 1 8 174 5,126 216 3,462 2,104 11,788

75 49 877 293 129 55 1 8 173 4,950 208 3,271 1,928 10,817

80 48 879 280 131 58 2 1 176 5,062 246 3,468 2,188 12,267
Table 28b.--Average empirical yields of forest biomass for fully stocked stands

Type: Oak-gum-cypress Site: Medium Region: Southeast

: : : D.b.h. class (inches) :

Stand :

: Total ’ Standard ’

:

Species group

age

(years) : 1.0+ ;

: : :

error

:

: 5.0+ ’ Yellow j

: :

: 9.0+ : 13.0+ : 17.0+ :

Other ’

Gums :

Soft : Oaks :Hard

: : : : : : :

pines : softwood ;

:

hardwood i : hardwood

----------------c___- Green tons per acre - - - - - - - - - - - - - - - - - - - - -

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

13.1

30.9

73.3

98.7

113.3

118.1

131.4

132.9

141.8

143.9

159.5

170.4

180.9

174.0

181.2

3.6 3.8 --

8.6 6.3 2.5

8.0 36.0 15.4

8.4 66.6 34.6

6.7 86.3 46.8

4.6 97.4 61.6

4.7 115.5 79.1

5.2 117.8 83.2

4.3 126.6 94.0

4.9 130.0 101.1

4.9 146.3 115.5

6.3 158.7 128.8

7.5 169.1 144.2

7.5 161.6 134.0

9.6 170.6 145.5

--

--

3.1

16.5

20.7

30.6

43.5

44.2

51.2

62.1

68.8

82.5

96.6

92.1

- -

9.0

10.1

12.7

20.1

18.6

22.5

25.5

30.6

38.8

50.0

46.5

2.2 0.8 3.8 4.7 0.2 1.4

3.8 3.5 8.0 8.1 6.7 0.8

5.2 22.2 29.5 15.0 1.2 .2

7.9 19.9 38.3 22.7 7.5 2.3

5.8 13.4 46.4 29.7 12.6 5.3

6.3 18.9 46.3 31.0 11.2 4.3

5.1 23.8 54.9 28.7 9.4 9.5

4.3 24.8 57.9 20.4 18.9 6.6

5.2 23.8 59.0 28.0 13.6 12.1

3.4 24.6 67.5 21.7 13.0 13.6

5.9 35.0 61.0 25.7 21.2 10.7

3.2 41.8 66.1 24.2 21.5 13.5

2.4 41.8 70.8 24.8 21.2 19.9

1.5 37.3 78.1 25.0 14.2 17.9

103.9 58.4 3.1 39.0 82.9 24.5 21.3 10.5
3 Table 29a.--Average empirical yields of timber for fully stocked stands

Type: Oak-gum-cypress Site: High Region: Southeast

: : Live trees : :

: : per acre,

Volume per acre

Stand : by d.b.h. class :Basal area

:

:

Sample :

(inches) : : : : : Sawt imber

age : : per acre, : Total :

(years) : plots : : : : : : trees 5.O+

inches

: aboveground : Standard i Growing i

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : : trees l.O+ : error : stock : Saw-log i International

: : : : : : : : : : : portion : a-inch rule

_1_-1

10

15

20

2 5

30

35

4 0

45

50

55

60

65

70

75

80

Square Board

-------- - Number - - - - - - - feet ------ - Cubic feet - - - - - - - feet

6 1,499 18 13 -- - - 9 597 162 198 63 346

3 1,143 177 26 4 - - 46 1,559 1,056 811 225 1,187

2 1,443 213 41 13 6 83 2,266 318 1,414 738 4,266

6 1,319 272 61 22 5 103 3,198 200 2,013 744 4,177

18 1,203 278 87 28 6 118 3,630 192 2,290 1,032 5,895

34 765 249 98 28 8 123 3,704 144 2,552 1,215 6,873

45 799 262 115 38 12 144 4,306 209 2,935 1,582 8,966

42 812 244 108 43 12 139 4,325 177 2,997 1,653 9,469

53 765 251 115 47 14 148 4,614 160 3,255 1,940 11,033

18 737 210 108 49 17 139 4,338 203 3,105 1,937 11,050

40 753 265 117 51 15 156 4,737 190 3,298 2,020 11,486

21 674 215 110 55 19 153 4,846 305 3,345 2,257 12,978

22 738 257 130 63 2 2 174 5,545 394 3,942 2,682 15,154

13 780 235 125 63 31 182 5,729 650 4,050 2,979 16,708

19 596 201 99 54 29 159 4,974 321 3,474 2,603 14,747
Table 29b .--Average empirical yields of forest biomass for fully stocked stands

Type: Oak-gum-cypress Site: High Region: Southeast

: : : D.b.h. class (inches) :

Stand :

Total ’

age :

Standard ’

:

Species group

l.O+ ; error

: :

. .

’

(years) : : 5.0+ : 9.0+ I 13.0+ I 17.0+ :

Yellow ’ Other i

:

Gums

Soft :

:

Oaks :

Hard

: : : : : : :

pines i softwood

:

i hardwood i : hardwood

10 23.4 6.0 8.9 7.8

15 58.9 39.0 39.2 16.5

20 84.8 6.0 69.4 45.0

25 118.8 8.0 96.7 54.3

30 130.1 7.2 108.3 77.2

35 133.6 5.1 121.4 91.9

40 153.7 7.6 142.1 115.2

45 159.2 6.5 147.3 119.9

50 167.0 6.1 155.7 130.9

55 159.6 7.9 149.1 128.7

60 173.0 6.9 163.4 137.2

65 177.4 10.3 169.2 149.9

70 199.2 14.3 190.8 167.9

75 214.0 27.4 203.9 182.9

80 187.4 14.3 178.0 160.3

-------------- - - - - - -

-- - - 2.6 - -

5.2 - - 10.5 - -

26.4 17.0 3.6 - -

30.3 11.9 12.9 - -

42.4 14.7 7.4 0.3

47.0 21.2 9.3 5.9

67.3 34.7 5.7 12.4

77.2 34.8 6.9 3.9

85.9 41.2 8.5 10.8

91.5 47.0 11.9 4.6

96.3 47.3 7.9 11.7

113.5 63.6 5.3 6.8

124.6 68.0 7.0 28.3

144.7 102.1 7.5 38.4

135.0 99.0 3.4 24.2

- Green tons per acre - - -

8.2 7.1 5.0 0.5

30.2 9.4 8.6 .l

13.8 33.5 28.7 5.1

57.3 19.5 26.2 2.9

54.5 49.0 13.6 5.3

51.3 42.3 16.4 8.4

71.4 40.2 13.6 10.4

65.7 36.1 35.3 11.4

68.5 42.2 26.8 10.2

65.4 36.7 32.5 8.5

77.8 35.4 28.1 12.1

77.5 27.3 43.8 16.6

108.7 23.0 14.2 18.0

99.0 28.1 26.4 14.6

93.0 32.7 24.3 9.9
8 Table 30a.--Average empirical yields of timber for fully stocked stands

Type: Natural yellow pine Site: All sites Region: Southeast

---- -

: :

Live trees per acre, : :

: :

by d.b.h. class : :

Volume per acre

Stand : :

(inches)

: Basal area :

: : :

Sample : per acre, : Total *

Sawtimber

age : :

’

:

(years) :

plots :-----:------ : : :

: trees 5.0+

: : l.O+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ :

inches

: aboveground : Standard : Crowing i

: trees l.O+ :

error : stock : Saw-log I International

$-inch rule

: : : : : : : : : :

: portion :

I___- - - ---

--------- Number- - - - - - - -

--

%uare

feet -------

Board

Cubic feet

-

- - - - - - - feet

10 58 1,220 69 -- -- --

15 9 7 1,420 167 13 -- --

20 166 1,475 245 2 7 2

- -

25 267 1,075 292 5 5 7 1

30 326 972 284 7 7 13 2

35 278 988 283 85 17 2

4 0 247 841 261 92 2 2 3

4 5 175 818 245 98 27 4

50 102 813 241 104 31 6

55 6 5 816 237 113 33 5

60 48 1,006 232 100 28 5

65 2 6 829 230 109 4 0 8

70 15 683 203 116 3 7 4

7 5 10 788 172 123 54 11

80 10 1,027 251 119 46 6

14 683 68 158 - - - -

41 1,341 78 566 71 378

66 1,975 5 5 1,005 221 1,171

94 2,612 50 1,704 662 3,505

106 2,963 54 2,112 1,061 5,616

111 3,225 61 2,348 1,292 6,841

114 3,384 71 2,555 1,573 8,337

115 3,481 82 2,679 1,825 9,670

119 3,811 121 2,979 2,153 11,410

124 3,895 126 3,008 2,207 11,703

114 3,530 140 2,689 1,981 10,498

128 4,180 296 3,315 2,582 13,699

122 3,853 215 3,141 2,515 13,317

133 4,703 483 3,853 3,551 18,785

137 4*279 582 3,345 2,522 13,363

---~
Table 30b.--Average empirical yields of forest biomass for fully stocked stands

Type: Natural yellow pine Site: All sites Region: Southeast

: : : D.b.h. class : Stand : : ’ (inches) : Species group

Total Standard

age : : : . : :

(years) :

l.O+ error I

: : 5.0+ 9.0+ : 13.0+ : 17.0+ ’ Yellow ’ Other ’

:

Gums :

Soft ; :

Oaks Hard:

: : : : : : : pines ; softwood i : hardwood 1 .

:

: hardwood

---4----_--_-__-__-_a Green tons per acre - - - - - - - - - - - - - - - - - - - - -

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

25.0 2.5 9.3 -- -- -- 22.6 0.2 0.5 0.6 0.6 0.5

49.3 2.8 28.6 5.3 -- -- 44.4 .2 1.7 1.0 1.4 .5

13.0 2.0 49.4 13.7 2.2 -- 64.7 .5 2.6 1.8 2.1 1.3

97.2 1.9 80.2 36.2 9.9 2.7 87.6 1.0 2.8 2.3 2.5 1.0

110.3 2.0 96.6 56.1 17.9 4.3 98.3 .6 4.3 2.9 2.9 1.3

119.7 2.3 105.8 66.8 23.4 4.6 106.2 .6 4.4 3.5 3.3 1.6

125.7 2.6 114.0 79.3 32.7 7.7 109.6 1.2 5.2 3.3 4.1 2.3

129.3 3.0 118.8 89.6 41.4 10.6 113.9 .7 5.0 4.0 4.2 1.5

141 .a 4.5 131.0 103.5 52.1 14.5 124.1 1.2 5.5 4.1 4.2 2.6

143.9 4.4 133.1 108.3 51.5 12.6 123.1 1.1 6.3 4.4 5.7 3.4

130.9 5.2 118.2 93.8 47.5 14.6 110.7 .6 5.4 5.6 5.7 2.9

155.0 11.3 145.6 120.7 72.1 23.3 131.0 , .4 5.5 4.9 9.9 3.3

145.5 a.7 138.0 119.2 58.1 10.3 132.4 .7 4.5 1.6 4.2 2.2

172.8 17.1 165.4 155.7 102.9 38.4 154.4 .3 7.1 4.2 2.3 4.5

156.3 20.3 145.5 120.3 71.2 16.0 124.2 10.0 4.6 11.4 3.3 2.8
8 Table 31a .--Average empirical yields of timber for fully stocked stands

Type: Planted yellow pine Site: All sites Region: Southeast

: : Live trees per acre, : :

: : : :

Volume per acre

Stand : :

by d.b.h. class

(inches)

: Basal area :------: : :

age

: Sample : :

per acre, :

Total :

Sawtimber

- -

(years) :

plots : : : : : :trees 5.0+ : aboveground :Standard

inches

i Growing i

stock

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : : trees l.O+ : error : : Saw-log i International

: : : : : : : : : :

: portion i g-inch rule

- - --- - -

Square

feet

1 4

55

86

106

112

107

117

--

- - Board

feet

--

- - Number - - - Cubic feet - - -

78 --

244 9

327 2 7

333 60

279 100

267 84

211 110

-- --

30 142

46 745

5 1 1,390

6 7 1,973

160 2,326

326 2,265

359 2,990

-- --

10

1 5

20

25

30

35

40

45

50

55

60

65

70

75

80

238 944

243 893

298 793

167 626

3 3 525

11 680

1 0 517

629

1,472

2,168

2,686

2,976

3,030

3,659

-- -- --

62

224

604

1,165

1,376

2,355

--

329

1,183

3,191

6,157

7,277

12,452

1 --

3 --

10 --

1 8 1

3 7 2

--

-- -- -- -- --

-- --

-- --

--

-- --

-- -- --

-- -- -- -- --

-- -- -- -- -- --

-- -- -- --

-- -- -- -- -- --
Table 31b.-- Average empirical yields of forest biomass for fully stocked stands

Type: Planted yellow pine Site: All sites Region: Southeast

: : :

nL~ 7 _ D.b.h. class (inches) '

3tana ;

' Standard '

:

Species group

age

: Total . .

(years) :

1 n. : : :

i-U-- error *

: 5.0+ : 9.0+ I

' Yellow ' Other '

:

: 13.0+ : 17.0+ :

Soft :

:

Gums

. . . . . pines i softwood ; i hardwood i Oaks f ha%tod

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

22.6 1.1 7.9

54.4 1.7 38.0

81.6 1.9 68.2

101.5 2.5 93.3

111.5 5.8 105.0

113.7 12.4 103.5

139.9 14.0 134.3

-- -- --

-- -- --

-- -- --

------- - Green tons p er acre - - - - - - - - - - - - - - - - - - - - -

-- -- -- 21.3 -- 0.4 0.3 0.5 0.2

4.1 -- -- 52.4 0.1 .4 .5 .8 .2

13.8 1.1 -- 18.5 .l .7 .5 1.6 .3

35.5 3.3 0.3 98.8 -- . 9 .3 1.2 l 2

64.3 12.0 .5 107.9 .7 1.7 .6 .3 .3

69.7 23.2 2.0 109.8 -- . 8 .5 1.4 1.1

113.8 53.0 5.1 131.8 -- 1.7 1.0 5.0 .3

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --

-- -- -- -- -- -- -- -- --
3 Table 32a.--Average empirical yields of timber for fully stocked stands

Type: Natural oak-pine Site: All sites Region: Southeast

---- ~---- I__-- -

: : : :

: :

Live trees per acre,

by d.b.h. class : :

Volume per acre

Stand : :

Sample : (inches)

: Basal area :

: : :

age :

per acre, . Sawtimber

plots : : ~--

:

(years) : : : : :

trees 5.O+ *

Total :

: aboveground : Standard i Growing i

: : l.O+ : 5.0+ : 9.0+ : 13.0+ : 17.r)+ :

inches trees l.O+ :error : stock

:

: Saw-log i International

: : : : : : : : : :

: portion : &inch rule

~.---

--a-----Number- - - - - - - -

Square

feet ---w-e- Cubic feet - - - - - - -

Board

feet

10 23 939 39 -- -- -- 9 433 7 2 112 - - - -

15 2 5 1,338 97 13 -- -- 2 6 951 100 388 7 4 397

20 3 6 1,591 203 30 4

- - 61 1,984 100 995 257 1,412

25 3 9 1,361 205 38 9 1 68 2,014 124 1,106 406 2,188

30 7 3 1,172 246 60 16 4 9 2 2,672 105 1,729 806 4,368

35 7 5 1,095 235 66 17 4 9 5 2,807 107 1,797 896 4,878

4 0 83 1,032 229 69 19 5 9 7 2,913 97 1,953 1,028 5,592

45 7 3 944 236 78 24 7 107 3,155 90 2,189 1,219 6,693

50 67 958 241 90 26 7 114 3,477 114 2,415 1,393 7,591

55 49 875 212 81 2 8 7 106 3,268 142 2,315 1,390 7,617

60 47 943 230 85 30 8 112 3,462 148 2,342 1,460 7,965

65 2 2 994 202 84 34 10 114 3,549 217 2,442 1,705 9,353

70 31 746 221 86 3 7 15 124 3,900 194 2,877 2,126 11,667

7 5 11 788 181 85 38 9 107 3,332 219 2,410 1,784 9,721

8 0 13 969 217 93 3 7 11 121 3,897 331 2,805 1,919 10,537

- -__
Table 32b.--Average empirical yields of forest biomass for fully stocked stands

Type: Natural oak-pine Site: All sites Region: Southeast

: : : Stand : D.b.h. class (inches) : Species group

as

: Total ’ Standard ’

:

-_____-___----I__---_I_

1.0+ ; error : : : :’ Yellow ’ Other i : Soft : :

(years) : : 5.0+ : 9.0+ : 13.0+ : 17.0+ : Gums : Oaks

Hard

: : : : : : : pines ; softwood : : hardwood i i hardwood

-------- ------ e-w---- - ---

------------------__ - Green tons p er acre - - - - - - - - - - - - - - - - - - - - -

--I_

10 16.5 2.7 5.5 -- -- -- 5.9 0.7 4.9 1.6 2.0 1.5

1.5 36.2 3.8 19.5 6.7 -- -- 14.0 1.8 8.0 4.3 5.7 2.4

20 74.3 3.7 50.0 19.3 5.5 -- 29.0 4.4 9.4 13.7 14.0 3.9

25 75.3 4.5 55.7 26.7 10.9 2.7 31.4 3.2 12.8 8.3 14.4 5.2

30 99.8 3.8 83.0 49.7 23.6 8.8 41.2 1.9 19.9 12.0 19.7 5.1

35 104.7 3.9 88.2 57.1 27.5 10.7 39.4 5.6 18.7 11.5 22.6 6.9

40 109.6 3.6 94.1 63.4 31.7 12.6 41.7 4.2 14.9 12.9 29.2 6.7

45 118.6 3.3 105.5 75.4 42.5 19.3 43.0 4.9 17.9 14.1 30.9 7.9

50 129.3 4.2 114.3 85.3 45.1 18.5 46.7 7.0 25.0 16.3 25.1 9.3

55 123.6 5 * 110.6 84.8 49.1 19.9

129.9 5:; 115.4 88.1 52.7 21.5

41.2 6.5 14.9 16.9 34.9 9.2

60 48.2 5.1 21.9 13.2 32.1 9.4

65 134.6 8.3 119.4 96.7 64.9 31.8 44.1 11.1 19.8 14.3 39.0 6.3

70 147.4 7.0 137.1 113.3 81.2 48.6 53.8 5.0 24.6 20.2 34.7 9.0

75 127.8 8.2 119.0 101.3 69.4 26.4 51.1 4.7 12.0 11.2 38.5 10.3

80 145.0 12.7 131.6 108.8 72.1 34.4 51.0 8.0 22.9 27.4 28.8 6.9 _I---l___l____l_--.--l__-- ~---_I_--
-I

N

Table 33a .--Average empirical yields of timber for fully stocked stands

Type: Oak-hickory Site: All sites Region: Southeast

: : Live trees : :

: : per acre,

.

by d.b.h. class

i Basal area

:

Volume per acre

Stand : : : : : :

age : Sample :

(inches) per acre, : Sawtimber

: Total : :

(years) : plots : :

-~: : ------: : trees 5.0+

inches

: aboveground : Standard : Growing i---

: : 1.0+ : 5.0+ : 9.0+ : 13.0+ : 17.0+ : : trees l.O+ : error : stock : Saw-log International

: : : : : : : : : : : portion

i

: g-inch rule

----

Square Board ---

------- - - Number - - - - - - - - feet ------ -Cubic feet - - - - - - - feet

---

10 34 967 35 -- -- -- 8 359 53 9 7 - - - -

15 50 1,160 86 11 -- -- 23 857 86 306 40 227

20 24 1,505 119 21 5 -- 38 1,434 107 579 153 872

25 43 1,345 199 43 7 2 68 2,125 77 1,159 339 1,910

30 85 1,185 217 50 12 3 7 9 2,377 79 1,422 494 2,825

35 76 1,036 220 66 17 4 92 2,764 97 1,781 732 4,188

4 0 132 828 232 79 23 5 104 3,032 71 2,051 896 5,142

45 121 828 236 79 25 6 107 3,149 81 2,135 940 5,392

50 121 774 226 82 25 7 107 3,150 66 2,165 985 5,674

55 109 695 216 85 33 10 114 3,440 81 2,427 1,332 7,656

60 91 680 206 91 35 11 116 3,543 86 2,515 1,426 8,218

65 65 643 205 85 33 10 111 3,300 90 2,361 1,263 7,311

70 79 635 185 91 39 13 116 3,588 103 2,581 1,558 9,032

75 39 691 199 90 39 14 120 3,783 149 2,708 1,636 9,486

80 45 568 185 90 45 18 128 3,973 126 2,856 1,908 11,010
Table 33b.--Average empirical yields of forest biomass for fully stocked stands

Type: Oak-hickory Site: All sites Region: Southeast

: : :

stand ’ Total ’ Standard ’

D.b.h. class (inches) ’

:

Species group

age :

l.O+ i error

: : : :

’ Yellow ’ Other ’

: Soft ::

(years) : : 5.0+ : g.o+ : 13.0+ : 17.0+ : Gums Oaks :

Hard

: : : : : : :

pines ; softwood :

:

i hardwood i : hardwood

----------------a-_- - Green tons per acre - - - - - - - - - - - - - - - - - - - - -

10 14.6 2.1 5.4 -- -- -- 2.5 0.1 1.5 2.5 6.1 1.9

15 33.5 3.2 18.5 6.4 -- -- 3.0 .6 5.3 8.7 11.6 4.4

20 56.4 3.9 31.2 14.9 5.8 -- 4.3 .2 4.9 15.4 24.5 7.1

25 82.7 2.9 61.4 32.0 11.1 4.0 9.5 1.6 13.9 14.4 32.4 10.8

30 92.6 2.9 73.9 42.6 19.4 8.5 8.8 .4 13.4 18.4 39.2 12.5

35 107.0 3.6 91.5 61.3 29.8 11.1 7.5 .8 17.4 25.5 40.2 15.6

40 118.0 2.6 105.5 75.3 38.9 15.3 7.8 .6 16.1 25.3 51.0 17.1

45 122.9 3.1 110.5 78.6 43.0 17.1 8.4 1.0 15.4 25.4 56.8 15.9

50 124.0 2.6 112.3 82.4 45.1 19.4 6.4 2.1 13.7 22.6 60.1 19.1

55 135.3 3.0 125.6 99.7 63.8 30.9 10.6 1.4 16.3 25.3 63.5 18.2

60 139.8 3.2 129.9 107.3 69.0 33.9 7.2 2.4 16.1 23.7 67.8 22.5

65 130.8 3.4 122.7 99.5 64.1 30.1 5.0 2.0 11.6 23.2 63.7 25.2

70 142.9 4.1 134.3 116.1 80.9 40.5 5.9 2.1 12.8 22.3 75.5 24.4

75 151.6 5.9 142.5 120.9 84.9 45.4 6.0 1.1 16.6 22.1 80.9 24.9

80 157.6 5.1 150.1 132.8 102.0 61.7 5.1 6.2 12.2 24.9 81.0 28.2
2 Table 34a.-- Average empirical yields of timber for fully stocked stands

Type: Oak-gum-cypress Site: All sites Region: Southeast

: : : :

: :

Live trees per acre, . .Volume per acre

Stand : :

by d.b.h. class

age

: Sample : (inches)

i Basal area :

per acre, I

: : :

Sawtimber

plots :

:

(years) : : : : :

: trees 5.0+ Total : :

: aboveground :

Standard : Growing i

: : 1.0+ : 5.0+ : Y.O+ : 13.0+ : 17.0+ : inches : trees l.O+ : error : stock : Saw-log i International

: : : : : : : : : :

: portion : $-inch rule

- - -

Square

feet

Board

------ - Cubic feet - - - - - - - feet

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

1 3 1,343 15 -- -- -- 3 374 121 52 -- --

1 4 1,614 60 6 -- -- 1 4 1,001 197 190 49 257

27 2,511 159 25 4

-- 45 1,927 194 647 188 986

42 2,045 231 43 1 1 4 80 2,774 192 1,321 474 2,607

84 1,643 292 62 1 5 4 103 3,213 135 1,723 599 3,360

106 1,123 289 82 22 6 117 3,448 106 2,096 855 4,796

153 1,050 293 96 29 8 133 3,828 112 2,395 1,108 6,210

133 962 276 101 32 8 132 3,874 117 2,519 1,196 6,761

182 941 292 109 35 1 0 144 4,138 96 2,679 1,370 7,700

116 880 273 108 39 1 0 142 4,075 117 2,652 1,369 7,713

158 861 286 119 43 1 2 154 4,537 108 3,043 1,690 9,476

104 825 294 121 47 1 4 162 4,634 139 3,107 1,828 10,264

99 917 287 130 54 1 8 170 5,023 178 3,349 2,056 11,530

69 915 282 128 53 1 9 171 4,986 208 3,327 2,019 11,314

82 889 270 121 52 2 1 168 4,864 185 3,266 2,101 11,778

--
Table 34b.--Average empirical yields of forest biomass for fully stocked stands

Type: Oak-gum-cypress Site: All sites Region: Southeast

: : :

Stand ’ Total ’ Standard i

D.b.h. class (inches) i Species group

age : : : : : :

(years) : l.O+ i error ’ Yellow ’: 5.0+ : 9.0+ : 13.0+ : 17.0+ :

Other ’

Gums :

Soft :

Oaks :

Hard

: : : : : : :

pines i softwood ; : hardwood i : hardwood

------------e----e-_ - Green tons per aCre _ - - - - - _ _ - - - _ _ _ - _ _ _ _ _ _

10 14.3 4.6 2.3 -- __ __ 1.5 0.6 7.4 3.5 0.6 0.8

15 37.6 7.2 9.6 3.1 -- -- 3.9 1.9 17.2 .9.7 4.5 .5

20 67.6 6.6 31.8 14.4 3.9 -- 4.0 22.7 25.0 13.6 2.3 .1

25 98.3 6.7 64.8 34.6 17.4 8.8 739 16.8 39.4 23.7 8.7 1.8

30 111.9 4.8 84.3 48.5 22.7 9.4 5.0 14.1 48.0 29.9 10.2 4.6

35 120.3 3.6 101.9 68.2 33.9 14.6 7.4 16.9 46.1 32.5 11.9 5.6

40 133.3 4.1 117.0 84.0 46.4 22.3 4.8 22.9 56.4 30.8 9.8 8.5

45 137.5 4.3 123.2 91.7 52.6 22.8 4.9 19.0 58.2 24.3 23.0 8.1

50 145.7 3.5 131.3 100.8 58.8 26.5 6.2 23.0 58.6 30.3 16.2 11.4

55 142.4 4.2 128.8 100.4 61.9 27.2 4.7 26.3 61.7 23.3 15.0 11.5

60 161.1 4.0 148.7 119.2 74.6 34.5 6ti3 30.2 64.0 27.9 21.9 10.9

65 164.5 5.2 153.5 124.3 82.5 41.0 3.3 37.8 62.7 23.0 24.6 13.1

70 177.6 6.4 165.3 138.5 94.8 49.4 3.5 40.8 74.7 22.1 17.8 18.8

75 177.0 8.0 164.1 137.5 95.4 53.2 2.6 38.1 80.4 24.3 15.5 16.0

80 174.4 7.4 162.9 138.4 99.8 60.9 3.5 40.5 79.0 23.6 18.1 9.9