| Soil
Property Code |
Soil
Property |
AttributeDescription |
Units |
| BDW |
Bulk
Density - Whole Earth |
Bulk
Density of the whole soil (including coarse fragments) in
mass per unit volume by a method equivalent to the core
method |
g/cm3 |
| BDF |
Bulk
Density - Fine Earth |
Bulk
Density of the fine earth fraction of the soil (< 2 mm)
in mass per unit volume by a method equivalent to the core
method |
g/cm3 |
| SOC |
Organic
Carbon |
mass
fraction of carbon by weight in the < 2 mm soil
material as determined by dry combustion at 900° C |
% |
| CLY |
Clay |
< 2
um mass fraction of the < 2 mm soil material determined
using the pipette method |
% |
| SLT |
Silt |
2-20
um mass fraction of the < 2 mm soil material determined
using the pipette method |
% |
| SND |
Sand |
20 um
- 2 mm mass fraction of the < 2 mm soil material
determined using the pipette method |
% |
| PHW |
pH -
Water |
pH of a 1:5 soil water solution |
None |
| PHC |
pH -
CaCl2 |
pH of
1:5 soil/0.01M calcium chloride extract |
None |
| AWC |
Available
Water Capacity |
Available
water capacity computed for each of the specified depth
increments |
% |
| NTO |
Total
Nitrogen |
Total
nitrogen |
% |
| PTO |
Total
Phosphorus |
Total
phosphorus |
% |
| ECD |
Electrical
Conductivity |
Electrical
conductivity in 1:5 water-soil solution |
dS/m |
| CEC |
Cation
Exchange Capacity |
Cations
extracted using barium chloride (BaCl2) |
meq/100g |
| ECE |
Effective
Cation Exchange Capacity |
Cations
extracted using barium chloride (BaCl2) plus exchangeable
H + Al |
meq/100g |
| DER |
Depth of Regolith |
Depth to hard rock. Depth is inclusive of all regolith. |
m |
| DES |
Depth
of Soil |
Depth
of soil profile (A & B horizons) |
m |
| DPE |
Plant
Exploitable (effective) Depth |
Effective
depth in cm as defined in the USDA Soil Survey Manual. The
lower limit of soil is normally the lower limit of
biologic activity, which generally coincides with the
common rooting depth of native perennial plants. This
depth is where root penetration is strongly inhibited
because of physical (including soil moisture or
temperature) and/or chemical characteristics. |
cm |
| CFG |
Coarse
Fragments |
mass
fraction of the soil material > 2 mm |
% |