HORIZON fundamentals is tabular data that can be used in conjunction
with any of the NATMAP products except NATMAP soilscapes.
HORIZON fundamentals includes very detailed descriptions of the texture
and other properties pertaining to the soils. This
data set provides the most detailed description of each horizon of the soil series. It
is based heavily on laboratory based analyses.
You will need to lease this attribute product with a relevant NATMAP soil map dataset. Click below to get a price:
| Property |
Example from data |
Description |
| |
|
|
| HORID |
1 |
Unique Horizon Identifier (Defines one Horizon (depth range, series, landuse)) |
| SERIES |
17 |
Soil series code for each series, this is a 4 digit numeric code
|
| SERIES_NAME |
ANGLEZARKE |
Soil series name |
| LU_GROUP |
PG |
Landuse Group - AR (Arable) PG (Permanent Grass) LE (Ley Grassland)
or OT (Other) |
| DESIGNATION |
E |
Layer Designation - At a basic level A (Topsoil) B (subsoil) C (Parent
Material) E (Elluvial) O (Organic) |
| UPPER_DEPTH |
20 |
Horizon upper depth in cm (<0 indicated litter layer) |
| LOWER_DEPTH |
35 |
Horizon lower depth in cm (999 implies depth below bottom of profile) |
| SAND_TOTAL |
71 |
Total sand (0.06-2.0mm, 60-2000um) content (%) by weight |
| SAND_FINE |
38 |
Fine sand (0.06-0.2mm, 60-200um) content (%) by weight |
| SAND_MED |
|
Medium sand content (%) by weight |
| SAND_COARSE |
|
Coarse sand content (%) by weight |
| SILT |
28 |
Silt content (%) including CaCO3, (0.002 -0.06mm, 2-60um) |
| CLAY |
1 |
Clay content (%) including CaCO3 (<2um) |
| CARBON |
1.5 |
Organic Carbon % (by wt) |
| PH |
3.6 |
pH of soil measure after shaking 10ml of soil for 15 minutes with
25ml of water |
| SAND_TOTAL_QA |
NA |
Quality Information relevant to the total sand value |
| SAND_FINE_QA |
NA |
Quality Information relevant to the fine sand value |
| SAND_MED_QA |
ND |
Quality Information relevant to the medium sand value |
| SAND_COARSE_QA |
ND |
Quality Information relevant to the coarse sand value |
| SILT_QA |
NA |
Quality Information relevant to the silt value |
| CLAY_QA |
NA |
Quality Information relevant to the clay value |
| OC_QA |
EXPERT |
Quality Information relevant to the organic carbon value |
| PH_QA |
EXPERT |
Quality Information relevant to the pH value |
n.b. Quality information (*_QA) relevant to the texture,
organic carbon and pH values is provided. Where the data is averaged from
measured sample data the standard deviation is recorded unless their were
too few samples in which case Not Applicable (NA) is entered. In some cases
an expert soil scientist provided a meaningful value for the parameter
in which case the value is labeled 'EXPERT'. Where no meaningful value
is derivable a reason is given whether as a result of rock, rubble, ironpan
or peat. The coarse and medium sand values have as yet only been derived
for the 'A' horizons, therefore subhorizons are labeled 'ND' for Not Derived.
