BOREAS TE-20 NSA Soil Lab Data

7.3 Data Characteristics

7.3.1 Parameter/Variable

The parameters contained in the data files on the CD-ROM are:

         Column Name
------------------------------
SITE_NAME
SUB_SITE
MEASUREMENT_YEAR
PIT
HORIZON
START_DEPTH
END_DEPTH
BULK_DENSITY
TOTAL_SOIL_C_CONTENT
SOIL_ORG_C_CONTENT
SOIL_INORG_C_CONTENT
CATION_EX_CAPACITY
EXCHANGE_SODIUM
EXCHANGE_POTASSIUM
EXCHANGE_CALCIUM
EXCHANGE_MAGNESIUM
WATER_CONTENT_10KPA
WATER_CONTENT_33KPA
WATER_CONTENT_1500KPA
SOIL_NITROGEN_CONTENT
SOIL_PHOSPHORUS_CONTENT
VERY_COARSE_SAND
COARSE_SAND
MEDIUM_SAND
FINE_SAND
VERY_FINE_SAND
TOTAL_SAND
TOTAL_SILT
TOTAL_CLAY
SOIL_TEXTURE
HORIZON_NUM
MINRL_SOIL_AND_CACL2_PH
ORG_SOIL_AND_CACL2_PH
MINRL_SOIL_AND_H2O_PH
ORG_SOIL_AND_H2O_PH
SOIL_EXTRACT_ACIDITY
SOIL_SULFUR_CONTENT
CRTFCN_CODE
REVISION_DATE



7.3.2 Variable Description/Definition

The descriptions of the parameters contained in the data files on
the CD-ROM are:

         Column Name                             Description
------------------------------ ------------------------------------------------
SITE_NAME                      The identifier assigned to the site by BOREAS,
                               in the format SSS-TTT-CCCCC, where SSS identifies
                               the portion of the study area: NSA, SSA, REG,
                               TRN, and TTT identifies the cover type for the
                               site, 999 if unknown, and CCCCC is the identifier
                               for site, exactly what it means will vary with
                               site type.
SUB_SITE                       The identifier assigned to the sub-site by
                               BOREAS, in the format GGGGG-IIIII, where GGGGG is
                               the group associated with the sub-site 
                               instrument, e.g. HYD06 or STAFF, and IIIII is the
                               identifier for sub-site, often this will refer to
                               an instrument.
MEASUREMENT_YEAR               The year in which the data were collected.
PIT                            The pit identifier from which the sample was
                               taken.
HORIZON                        The soil horizon from which the sample was
                               taken.

The following information may help in describing the soil horizon codes:

Organic Horizons
O     This is an organic horizon developed mainly from mosses, rushes, and woody 
      materials.
Of    The fibric horizon is the least decomposed of all the organic soil
      materials.  It has large amounts of well-preserved fiber that are readily 
      identifiable as to botanical origin.  A fibric horizon has 40% or more of 
      rubbed fiber by volume and a pyrophosphate index of 5 or more.  If the 
      rubbed fiber volume is 75% or more, the pyrophosphate criterion does not 
      apply.
Om    The mesic horizon is the intermediate stage of decomposition with 
      intermediate amounts of fiber, bulk density and water-holding capacity.  
      The material is partly altered both physically and biochemically. A mesic 
      horizon is one that fails to meet the requirements of fibric or humic.
Oh    The humic horizon is the most highly decomposed of the organic soil 
      materials.  It has the least amount of fiber, the highest bulk density, 
      and the lowest saturated water-holding capacity.  It is very stable and 
      changes very little physically or chemically with time unless it is 
      drained.  The humic horizon has less than 10% rubbed fiber by volume and a 
      pyrophosphate index of 3 or less.
LFH   These organic horizons developed primarily from leaves, twigs, woody 
      materials, and a minor component of mosses under imperfectly to well-
      drained forest conditions.
L     This is an organic horizon characterized by an accumulation of organic 
      matter in which the original structures are easily discernible.
F     This is an organic horizon characterized by an accumulation of partly 
      decomposed organic matter.  The original structures in part are difficult 
      to recognize.  The horizon may be partly comminuted by soil fauna as in 
      moder, or it may be a partly decomposed mat permeated by fungal hyphae as 
      in mor.
H     This is an organic horizon characterized by an accumulation of decomposed 
      organic matter in which the original structures are indiscernible.  This 
      material differs from the F horizon by its greater humification chiefly 
      through the action of organisms.  It is frequently intermixed with mineral 
      grains, especially near the junction with the mineral horizon.

Mineral Horizons

Mineral horizons are those that contain less than 30% organic matter by weight 
as specified for organic horizon.

A    This is a mineral horizon or horizons formed at or near the surface in the 
     zone of leaching or removal of materials in solution and suspension or of 
     maximum in situ accumulation of organic matter, or both.  Included are:
     1.     horizons in which organic matter has accumulated as a result  
            of biological activity (Ah);
     2.     horizons that have been eluviated of clay, iron, aluminum, 
            or organic matter, or all of them (Ae);
     3.     horizons having characteristics of 1) and 2) above but 
            transitional to underlying B or C (AB or A and B);
     4.     horizons markedly disturbed by cultivation or pasture (Ap).

B    This is a mineral horizon or horizons characterized by one or 
     more of the following:
     1.     an enrichment in silicate clay, iron, aluminum, or humus, 
            alone or in combination (Bt, Bf, Bfh, Bhf, and Bh);
     2.     a prismatic or columnar structure that exhibits pronounced 
            coatings or stainings and significant amount of exchangeable
            Na (Bn);
     3.     an alteration by hydrolysis, reduction, or oxidation to give a  
            change in color or structure from horizons above or below, or both, 
            and does not meet the requirements of 1) and 2) above (Bm, Bg).

C     This is a mineral horizon or horizons comparatively unaffected by the 
      pedogenic processes operative in A and B, excepting (i) the process of 
      gleying, and (ii) the accumulation of calcium and magnesium carbonates and 
      more soluble salts (Cca, Csa, Cg, and C).  Marl and diatomaceous earth are 
      considered to be C horizons.

R     This is consolidated bedrock that is too hard to break with the hands or 
      to dig with a spade when moist and that does not meet the requirement of a 
      C horizon.  The boundary between the R layer and overlying unconsolidated 
      material is called a lithic contact.

W     This is a layer of water in Gleysolic, Organic, or Cryosolic soils. It 
      is called a hydric layer in Organic soils.

Lower-Case Suffixes
b     Buried soil horizon.
c     A cemented (irreversible) pedogenic horizon.  The ortstein of a Podzol, 
      and a layer cemented by calcium carbonate and a duripan are examples.
ca    A horizon with secondary carbonate enrichment where the concentration of 
      lime exceeds that present in the unenriched parent material.  It is more 
      than 10 cm thick, and if it has a CaCO3 equivalent of less than 15 percent 
      it should have at least 5 percent more CaCO3 equivalent than the parent 
      material (IC).  If it has more than 15 percent CaCO3 equivalent it should 
      have 1/3 more CaCO3 equivalent than the IC.  If no IC is present, this 
      horizon is more than 10 cm thick and contains more than 5 percent by 
      volume of secondary carbonates in concretions or soft, powdery forms.
cc    Cemented (irreversible) pedogenic concretions.
e     A horizon characterized by the eluviation of clay, iron, aluminum, or 
      organic matter alone or in combination.  When dry, it is usually higher in 
      color value by 1 or more units than an underlying B horizon.  It is used 
      with A (Ae).
f     A horizon enriched with amorphous material, principally Al and Fe combined 
      with organic matter.  It usually has a hue of 7.5YR or redder or its hue
      is 10YR near the upper boundary and becomes yellower with depth.  When 
      moist, the chroma is higher than 3 or the value is 3 or less.  It contains 
      0.6% or more pyrophosphate-extractable Al+Fe in textures  finer than sand 
      and 0.4% or more in sands (coarse sand, sand, fine sand, and very fine 
      sand).  The ratio of pyrophosphate-extractable Al+Fe to clay (less than 
      0.002 mm) is more than 0.05 and OC exceeds 0.5%. Pyrophosphate-extractable 
      Fe is at least 0.3%, or the ratio of OC to pyrophosphate-extractable Fe is 
      less than 20, or both are true.  It is used with B alone (Bf), with B and 
      h (Bhf), with B and g (Bfg), and with other suffixes.  The criteria for 
      "f" do not apply to Bgf horizons.

The following horizons are differentiated on the basis of OC content:
 Bf - 0.5% to 5% OC.  Bhf - more than 5% OC.

g     A horizon characterized by gray colors, or prominent mottling, or both, 
      indicative of permanent or periodic intense reduction.  Chromas of the 
      matrix are generally 1 or less.  It is used with A and e (Aeg); with B 
      alone (Bg); with B and f (Bfg); with B, h, and f (Bhfg); with B and t 
      (Btg); with C alone (Cg); with C and k (Ckg); and several others.  In some 
      reddish parent materials, matrix colors of reddish hues and high chromas 
      may persist, despite long periods of reduction.  In these soils, horizons 
      are designated as g if there is gray mottling or if there is marked 
      bleaching on ped faces or along cracks.
Aeg    This horizon must meet the definitions of A, e, and g.
Bg     These horizons are analogous to Bm horizons but they have colors 
      indicative of poor drainage and periodic reduction.  They include horizons 
      occurring between A and C horizons in which the main features are: (i) 
      colors of low chroma, that is: chromas of 1 or less, without mottles on 
      ped surfaces or in the matrix if peds are lacking; or chromas of 2 or less 
      in hues of 10YR or redder, on ped surfaces or in the matrix if peds are 
      lacking, accompanied by more prominent mottles than those in the C 
      horizon; or hues bluer than 10Y, with or without mottles on ped surfaces 
      or in the matrix if peds are lacking. (ii) colors indicated in (i) and a 
      change in structure from that of the C horizons. (iii) color indicated in 
      (i) and illuviation of clay too slight to meet the requirements of Bt; or 
      accumulation or iron oxide too slight to meet the limits of Bgf. (iv) 
      colors indicated in (i) and removal of carbonates.  Bg horizons occur in 
      some Orthic Humic Gleysols and some Orthic Gleysols.
Bfg, Bhfg, Btg, and others. When used in any of these combinations the 
     limits set for f, hf, t, and others must be met.
Bgf   The dithionite-extractable Fe of this horizon exceeds that of the IC by 
      1% or more.  Pyrophosphate-extractable Al + Fe is less than the minimum 
      limit specified for 'f' horizons.  This horizon occurs in Fera Gleysols 
      and Fera Humic Gleysols, and possibly below the Bfg of gleyed Podzols.  It 
      is distinguished from the Bfg of gleyed Podzols on the basis of the 
      extractability of the Fe and Al.  The Fe in the Bgf horizon is thought to 
      have accumulated as a result of the oxidation of ferrous iron.  The iron 
      oxide formed is not associated intimately with organic matter or with Al,  
      and it is sometimes crystalline.  The Bgf horizons are usually prominently 
      mottled, with more than half of the soil material occurring as mottles of 
      high chroma.
Cg,   Ckg, Ccag, Csg, Csag.  When g is used with C alone, or with C and one of 
      the lowercase suffixes k, ca, s, or sa, it must meet the definition for C 
      and for the particular suffix.
h     A horizon enriched with organic matter.  It is used with A alone (Ah); or 
      with A and e (Ahe); or with B alone (Bh); or with B and f (Bhf).
Ah    A horizon enriched with organic matter that either has a color value at 
      least one unit lower than the underlying horizon or contains 0.5% more OC 
      than the IC, or both.  It contains less than 17% OC by weight.
Ahe   An Ah horizon that has undergone eluviation as evidenced, under natural 
      conditions, by streaks and splotches of differing shades of gray and often 
      by platy structure.  It may be overlain by a darker-colored Ah and 
      underlain by a lighter colored Ae.
Bh   This horizon contains more than 1% organic carbon, less than 0.3% 
      pyrophosphate-extractable Fe, and has a ratio of OC to pyrophosphate-
      extractable of 20 or more. Generally the color value and chroma are less 
      than 3 when moist.
Bhf     Defined under 'f'.
j     Used as a modifier of the suffixes e, f, g, n, and t to denote an 
      expression of, but failure to meet, the specified limits of the suffix it 
      modifies.  It must be placed to the right of and adjacent to the suffix it 
      modifies.  For example, Bfgj means a Bf horizon with weak expression of 
      gleying; Bfjgj means a B horizon with weak expression of both 'f' and 'g' 
      features.

Aej     An eluvial horizon that is thin, discontinuous, or slightly 
        discernible.

Btj     A horizon with some illuviation of clay, but not enough to meet the 
        limits of Bt.

     Btgj, Bmgj  Horizons that are mottled but do not meet the criteria of Bg.

 Bfj     A horizon with some accumulation of pyrophosphate-extractable Al 
         and Fe but not enough to meet the limits of Bf.

Bntj or Bnj  Horizons in which  development of solonetzic B properties is 
             evident but insufficient to meet the limits for Bn or Bnt.

k     Denotes the presence of carbonate, as indicated by visible effervescence 
when dilute HCl is added. Most often it is used with B and m (Bmk) or C (Ck), 
and occasionally with Ah or Ap (Ahk, Apk), or organic horizons (Ofk, Omk).

m     A horizon slightly altered by hydrolysis, oxidation, or solution, or all 
      three, to give a change in color or structure, or both.  It has:

1.     Evidence of alteration in one of the following forms:

          a)     Higher chromas and redder hues than the underlying 
                 horizons.

          b)     Removal of carbonates, either partially (Bmk) or 
                 completely (Bm).

2.    Illuviation, if evident, too slight to meet the requirements of a Bt 
      or a podzolic B.

3.    Some weatherable minerals.

4.    No cementation or induration and lacks a brittle consistence when 
      moist.  This suffix can be used as Bm, Bmgj, Bmk, and Bms.

n     A horizon in which the ratio of exchangeable Ca to exchangeable Na is 10 
      or less.  It must also have the following distinctive morphological 
      characteristics: prismatic or columnar structure, dark coatings on ped 
      surfaces, and hard to very hard consistence when dry.  It is used with B, 
      as Bn or Bnt.

p     A horizon disturbed by man's activities, such as cultivation, logging, 
      habitation, etc.  It is used with A and O.

s     A horizon with salts, including gypsum, which may be detected as crystals 
      or veins, as surface crusts of salt crystals, by depressed crop growth, or 
      by the presence of salt-tolerant plants.  It is commonly used with C and k 
      (Csk), but can be used with any horizon or combination of horizon and 
      lowercase suffix.

sa     A horizon with secondary enrichment of salts more soluble than calcium 
      and magnesium carbonates, in which the concentration of salts exceeds that 
      present in the unenriched parent material.  The horizon is 10 cm or more 
      thick.  The conductivity of the saturation extract must be at least 4 
      ms/cm and must exceed that of the C horizon by at least one-third.

t     An illuvial horizon enriched with silicate clay.  It is used with B 
      alone (Bt), with B and g (Btg), with B and n (Bnt), etc.

Bt     A Bt horizon is one that contains illuvial layer lattice clays.  It forms 
      below an eluvial horizon, but may occur at the surface  of a soil that has 
      been partially truncated.  It usually has a higher ratio of fine clay to 
      total clay than IC.  It has the following properties:

          1.     If any part of an eluvial horizon remains and there is no 
                 lithologic discontinuity between it and the Bt horizon, the Bt 
                 horizon contains more total and fine clay than the eluvial
                 horizons, as follows:

               a)     If any part of the eluvial horizon has less than 15% 
                      total clay in the fine earth fraction (2 mm), the Bt
                      horizon must contain at least 3% more clay, e.g., Ae 10%
                      clay, Bt minimum 13% clay.

               b)     If the eluvial horizon has more than 15% and less than
                      40% total clay in the fine earth fraction, the ratio of 
                      the clay in the Bt horizon to that in the eluvial horizon 
                      must be 1.2 or more, e.g., 20% clay increase in the Bt 
                      over Ae. 

c)     If the eluvial horizon has more than 40% total clay in the 
       fine earth fraction, the Bt horizon must contain at least 
       8% more clay than the eluvial horizon, e.g., Ae 50% clay, 
       Bt at least 58% clay.

2.     A Bt horizon must be at least 5 cm thick.  In some sandy soils 
       where clay accumulation occurs in the lamellae, the total 
       thickness of the lamellae should be more than 10 cm in the 
       upper 150 cm of the profile.

3.     In massive soils the Bt horizon should have oriented clays in 
       some pores and also as bridges between the sand grains.

4.     If peds are present, a Bt horizon shows clay skins on some of 
       the vertical and horizontal ped surfaces and in the fine pores, 
       or shows oriented clays in 1% or more of the cross section, as 
       viewed in thin section.

5.     If a soil shows a lithologic discontinuity between the eluvial 
       horizon and the Bt horizon, or if only a plow layer overlies 
       the Bt horizon, the Bt horizon need show only clay skins in 
       some part, either in some fine pores or on some vertical and 
       horizontal ped surfaces.  Thin sections should show that some 
       part of the horizon has about 1% or more of oriented clay 
       bodies.

Btj       Btj and Btg are defined under j and g.

u     A horizon that is markedly disrupted by physical or faunal processes other 
      than cryoturbation.  Evidence of marked disruption such as the inclusion 
      of material from other horizons, absence of the horizon, etc., must be 
      evident in at least half of the cross section of the pedon.  Such 
      turbation can result from blowdown of trees, mass movement of soil on 
      slopes, and burrowing animals.  It can be used with any horizon or  
      subhorizon with the exception of A or B alone; 
      e.g., Aeu, Bfu, BCu.

x     A horizon of fragipan character.  A fragipan is a loamy subsurface horizon 
      of high bulk density and very low organic matter content.  When dry, it 
      has a hard consistence and seems to be cemented. When moist, it has 
      moderate to weak brittleness.  It frequently has bleached fracture planes 
      and is overlain by a friable B horizon.  Air dry clods of fragic horizons 
      slake in water.

y     A horizon affected by cryoturbation as manifested by disrupted and broken 
      horizons, incorporation of materials from other horizons, and mechanical 
      sorting in at least half of the cross section of the pedon.  It is used 
      with A, B, and C alone or in combination with other subscripts, e.g., Ahy, 
      Ahgy, Bmy, Cy, Cgy, Cygj, etc.

z     A frozen layer.  It may be used with any horizon or layer, e.g., Ohz, Bmz, 
      Cz, Wz.


START_DEPTH                    The start depth from the surface where the
                               sample was collected.
END_DEPTH                      The end depth from the surface where the sample
                               was collected.
BULK_DENSITY                   Bulk density of the soil sample.
TOTAL_SOIL_C_CONTENT           The percent total carbon in the soil sample.
SOIL_ORG_C_CONTENT             The percent organic carbon in the soil sample.
SOIL_INORG_C_CONTENT           The percent inorganic carbon in the soil sample.
CATION_EX_CAPACITY             The cation exchange capacity in the soil sample.
EXCHANGE_SODIUM                The exchangeable sodium in the soil sample.
EXCHANGE_POTASSIUM             The exchangeable potassium in the soil sample.
EXCHANGE_CALCIUM               The exchangeable calcium in the soil sample.
EXCHANGE_MAGNESIUM             The exchangeable magnesium in the soil sample.
WATER_CONTENT_10KPA            The water content of the soil in percent by
                               weight of water held at 0.01 MegaPascals.
WATER_CONTENT_33KPA            The water content of the soil in percent by
                               weight of water held at 0.033 MegaPascals.
WATER_CONTENT_1500KPA          The water content of the soil in percent by
                               weight of water held at 1.5 MegaPascals.
SOIL_NITROGEN_CONTENT          The nitrogen content of the soil sample.
SOIL_PHOSPHORUS_CONTENT        The phosphorus content of the soil sample.
VERY_COARSE_SAND               The amount of very coarse sand in the soil
                               sample.
COARSE_SAND                    The amount of coarse sand in the soil sample.
MEDIUM_SAND                    The amount of medium sand in the soil sample.
FINE_SAND                      The amount of fine sand in the soil sample.
VERY_FINE_SAND                 The amount of very fine sand in the soil sample.
TOTAL_SAND                     The total amount of sand in the soil sample.
TOTAL_SILT                     The total amount of silt in the soil sample.
TOTAL_CLAY                     The total amount of total clay in the soil
                               sample.
SOIL_TEXTURE                   The texture of the soil sample.
HORIZON_NUM                    The number of the horizon.
MINRL_SOIL_AND_CACL2_PH        The pH of a 1:2 soil to CaCl2 mixture using
                               mineral soil.
ORG_SOIL_AND_CACL2_PH          The pH of a 1:10 soil to CaCl2 mixture using
                               organic soil.
MINRL_SOIL_AND_H2O_PH          The pH of a 1:2 soil to H2O mixture using
                               mineral soil.
ORG_SOIL_AND_H2O_PH            The pH of a 1:10 soil to H2O mixture using
                               organic soil.
SOIL_EXTRACT_ACIDITY           The extractable acidity in the soil sample.
SOIL_SULFUR_CONTENT            The sulfur content in the soil sample.
CRTFCN_CODE                    The BOREAS certification level of the data.
                               Examples are CPI (Checked by PI), CGR (Certified
                               by Group), PRE (Preliminary), and CPI-??? (CPI 
                               but questionable).
REVISION_DATE                  The most recent date when the information in the
                               referenced data base table record was revised.


7.3.3 Unit of Measurement

The measurement units for the parameters contained in the data files on
the CD-ROM are:

         Column Name                                Units
------------------------------ ------------------------------------------------
SITE_NAME                      [none]
SUB_SITE                       [none]
MEASUREMENT_YEAR               [unitless]
PIT                            [none]
HORIZON                        [none]
START_DEPTH                    [meters]
END_DEPTH                      [meters]
BULK_DENSITY                   [kilograms][meter^-3]
TOTAL_SOIL_C_CONTENT           [percent]
SOIL_ORG_C_CONTENT             [percent]
SOIL_INORG_C_CONTENT           [percent]
CATION_EX_CAPACITY             [millimoles +ve charge][kilograms^-1 of soil]
EXCHANGE_SODIUM                [millimoles +ve charge][kilograms^-1 of soil]
EXCHANGE_POTASSIUM             [millimoles +ve charge][kilograms^-1 of soil]
EXCHANGE_CALCIUM               [millimoles +ve charge][kilograms^-1 of soil]
EXCHANGE_MAGNESIUM             [millimoles +ve charge][kilograms^-1 of soil]
WATER_CONTENT_10KPA            [percent]
WATER_CONTENT_33KPA            [percent]
WATER_CONTENT_1500KPA          [percent]
SOIL_NITROGEN_CONTENT          [percent by weight]
SOIL_PHOSPHORUS_CONTENT        [percent by weight]
VERY_COARSE_SAND               [percent]
COARSE_SAND                    [percent]
MEDIUM_SAND                    [percent]
FINE_SAND                      [percent]
VERY_FINE_SAND                 [percent]
TOTAL_SAND                     [percent]
TOTAL_SILT                     [percent]
TOTAL_CLAY                     [percent]
SOIL_TEXTURE                   [none]
HORIZON_NUM                    [unitless]
MINRL_SOIL_AND_CACL2_PH        [pH]
ORG_SOIL_AND_CACL2_PH          [pH]
MINRL_SOIL_AND_H2O_PH          [pH]
ORG_SOIL_AND_H2O_PH            [pH]
SOIL_EXTRACT_ACIDITY           [millimoles][kilogram^-1]
SOIL_SULFUR_CONTENT            [percent by weight]
CRTFCN_CODE                    [none]
REVISION_DATE                  [DD-MON-YYYY]


7.3.4 Data Source

The source of the parameter values contained in the data files on
the CD-ROM are:

         Column Name                             Data Source
------------------------------ ------------------------------------------------
SITE_NAME                      [Assigned by BORIS]
SUB_SITE                       [Assigned by BORIS]
MEASUREMENT_YEAR               [Supplied by Investigator]
PIT                            [Supplied by Investigator]
HORIZON                        [Supplied by Investigator]
START_DEPTH                    [Supplied by Investigator]
END_DEPTH                      [Supplied by Investigator]
BULK_DENSITY                   [Supplied by Investigator]
TOTAL_SOIL_C_CONTENT           [Supplied by Investigator]
SOIL_ORG_C_CONTENT             [Supplied by Investigator]
SOIL_INORG_C_CONTENT           [Supplied by Investigator]
CATION_EX_CAPACITY             [Supplied by Investigator]
EXCHANGE_SODIUM                [Supplied by Investigator]
EXCHANGE_POTASSIUM             [Supplied by Investigator]
EXCHANGE_CALCIUM               [Supplied by Investigator]
EXCHANGE_MAGNESIUM             [Supplied by Investigator]
WATER_CONTENT_10KPA            [Supplied by Investigator]
WATER_CONTENT_33KPA            [Supplied by Investigator]
WATER_CONTENT_1500KPA          [Supplied by Investigator]
SOIL_NITROGEN_CONTENT          [Supplied by Investigator]
SOIL_PHOSPHORUS_CONTENT        [Supplied by Investigator]
VERY_COARSE_SAND               [Supplied by Investigator]
COARSE_SAND                    [Supplied by Investigator]
MEDIUM_SAND                    [Supplied by Investigator]
FINE_SAND                      [Supplied by Investigator]
VERY_FINE_SAND                 [Supplied by Investigator]
TOTAL_SAND                     [Supplied by Investigator]
TOTAL_SILT                     [Supplied by Investigator]
TOTAL_CLAY                     [Supplied by Investigator]
SOIL_TEXTURE                   [Supplied by Investigator]
HORIZON_NUM                    [Supplied by Investigator]
MINRL_SOIL_AND_CACL2_PH        [Supplied by Investigator]
ORG_SOIL_AND_CACL2_PH          [Supplied by Investigator]
MINRL_SOIL_AND_H2O_PH          [Supplied by Investigator]
ORG_SOIL_AND_H2O_PH            [Supplied by Investigator]
SOIL_EXTRACT_ACIDITY           [Supplied by Investigator]
SOIL_SULFUR_CONTENT            [Supplied by Investigator]
CRTFCN_CODE                    [Assigned by BORIS]
REVISION_DATE                  [Assigned by BORIS]

7.3.5  Data Range

The following table gives information about the parameter values found in
the data files on the CD-ROM.

                     Minimum        Maximum        Missng  Unrel  Below   Data
                     Data           Data           Data    Data   Detect  Not
Column Name          Value          Value          Value   Value  Limit   Cllctd
--------------------------------------------------------------------------------
SITE_NAME            NSA-9BS-9TETR  NSA-YJP-FLXTR  None    None   None    None
SUB_SITE             9TE20-SOL01    9TE20-SOL09    None    None   None    None
MEASUREMENT_YEAR     1994           1994           None    None   None    None
PIT                  1              9              None    None   None    None
HORIZON              2AE            OMZ4           None    None   None    None
START_DEPTH          -65            495            None    None   None    Blank
END_DEPTH            -34            495            -999    None   None    Blank
BULK_DENSITY         0              1640           -999    None   None    None
TOTAL_SOIL_C_CONTENT .03            50.46          None    None   None    None
SOIL_ORG_C_CONTENT   0              50.46          None    None   None    None
SOIL_INORG_C_CONTENT 0              29.96          None    None   None    None
CATION_EX_CAPACITY   .5             193.5          -999    None   None    None
EXCHANGE_SODIUM      0              .4             -999    None   None    None
EXCHANGE_POTASSIUM   0              2.8            -999    None   None    None
EXCHANGE_CALCIUM     0              160.9          -999    None   None    None
EXCHANGE_MAGNESIUM   0              25.6           -999    None   None    None
WATER_CONTENT_10KPA  0              763.3          None    None   None    None
WATER_CONTENT_33KPA  0              289.3          -999    None   None    None
WATER_CONTENT_       0              222.4          -999    None   None    None
1500KPA
SOIL_NITROGEN_       .001           2.523          None    None   None    None
CONTENT
SOIL_PHOSPHORUS_     0              0              None    None   None    None
CONTENT
VERY_COARSE_SAND     -.2            55.3           -999    None   None    Blank
COARSE_SAND          0              71.4           -999    None   None    None
MEDIUM_SAND          0              45.5           -999    None   None    None
FINE_SAND            0              79.8           -999    None   None    None
VERY_FINE_SAND       0              12.8           -999    None   None    None
TOTAL_SAND           0              99.7           -999    None   None    None
TOTAL_SILT           0              70.9           -999    None   None    None
TOTAL_CLAY           0              97.7           -999    None   None    None
SOIL_TEXTURE         N/A            N/A            None    None   None    Blank
HORIZON_NUM          01             13             None    None   None    None
MINRL_SOIL_AND_CACL2_ 0             7.7            None    None   None    None
PH
ORG_SOIL_AND_CACL2_  0              6.6            None    None   None    None
PH
MINRL_SOIL_AND_H2O_  0              8.3            None    None   None    None
PH
ORG_SOIL_AND_H2O_PH  0              7.1            None    None   None    None
SOIL_EXTRACT_ACIDITY 0              137.2          -999    None   None    None
SOIL_SULFUR_CONTENT  0              0              None    None   None    None
CRTFCN_CODE          CPI            CPI            None    None   None    None
REVISION_DATE        19-NOV-1996    19-NOV-1996    None    None   None    None
--------------------------------------------------------------------------------
Minimum Data Value -- The minimum value found in the column.
Maximum Data Value -- The maximum value found in the column.
Missng Data Value  -- The value that indicates missing data. This is used to
                      indicate that an attempt was made to determine the
                      parameter value, but the attempt was unsuccessful.
Unrel Data Value   -- The value that indicates unreliable data.  This is used
                      to indicate an attempt was made to determine the
                      parameter value, but the value was deemed to be
                      unreliable by the analysis personnel.
Below Detect Limit -- The value that indicates parameter values below the
                      instruments detection limits.  This is used to
                      indicate that an attempt was made to determine the
                      parameter value, but the analysis personnel determined
                      that the parameter value was below the detection
                      limit of the instrumentation.
Data Not Cllctd    -- This value indicates that no attempt was made to
                      determine the parameter value.  This usually
                      indicates that BORIS combined several similar but
                      not identical data sets into the same data base table
                      but this particular science team did not
                      measure that parameter.

Blank -- Indicates that blank spaces are used to denote that type of value.
N/A   -- Indicates that the value is not applicable to the respective column.
None  -- Indicates that no values of that sort were found in the column.
--------------------------------------------------------------------------------

7.4 Sample Data Record

SITE_NAME,SUB_SITE,MEASUREMENT_YEAR,PIT,HORIZON,START_DEPTH,END_DEPTH,
BULK_DENSITY,TOTAL_SOIL_C_CONTENT,SOIL_ORG_C_CONTENT,SOIL_INORG_C_CONTENT,
CATION_EX_CAPACITY,EXCHANGE_SODIUM,EXCHANGE_POTASSIUM,EXCHANGE_CALCIUM,
EXCHANGE_MAGNESIUM,WATER_CONTENT_10KPA,WATER_CONTENT_33KPA,
WATER_CONTENT_1500KPA,SOIL_NITROGEN_CONTENT,SOIL_PHOSPHORUS_CONTENT,
VERY_COARSE_SAND,COARSE_SAND,MEDIUM_SAND,FINE_SAND,VERY_FINE_SAND,TOTAL_SAND,
TOTAL_SILT,TOTAL_CLAY,SOIL_TEXTURE,HORIZON_NUM,MINRL_SOIL_AND_CACL2_PH,
ORG_SOIL_AND_CACL2_PH,MINRL_SOIL_AND_H2O_PH,ORG_SOIL_AND_H2O_PH,
SOIL_EXTRACT_ACIDITY,SOIL_SULFUR_CONTENT,CRTFCN_CODE,REVISION_DATE
'NSA-9BS-9TETR','9TE20-SOL01','1994','1','CK',62.0,100.0,-999,22.73,.47,22.26,
19.4,.2,.4,19.4,3.1,41.9,35.9,21.4,.035,0.0,-999.0,-999.0,-999.0,-999.0,-999.0,
.6,34.4,65.0,'HC','08',7.6,0.0,8.3,0.0,0.0,0.0,'CPI',19-NOV-1996
'NSA-9BS-9TETR','9TE20-SOL01','1994','1','L',-9.0,-7.0,50,32.16,32.16,0.0,
-999.0,-999.0,-999.0,-999.0,-999.0,0.0,-999.0,-999.0,.879,0.0,0.0,0.0,0.0,0.0,
0.0,0.0,0.0,0.0,'','01',0.0,6.0,0.0,6.5,-999.0,0.0,'CPI',19-NOV-1996

--=====================_911856160==_--