Soils

Soil Organic Substances Content .

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Authors:

Fiodorov, A.S., Rukhovich, D.I., Vilchevskaya, E.V.

Compilation date:

10.07.2005.

Scale:

10 km/pix

Map's precision:

The map contains information on soil organic substances content for patches of the Earth's surface with the area of 10 х 10 km.

Projection:

"Albers Equal Area for the USSR":
ref. system : Albers Equal Area Conic for Russia
projection : Albers Equal Area Conic
datum : Pulkovo 1942 (S42)
delta WGS84 : 28 -130 -95
ellipsoid : Krasovsky
major s-ax : 6378245.000
minor s-ax : 6356863.019
origin long : 100
origin lat : 0
origin X : 0
origin Y : 0
scale fac : na
units : m
parameters : 2
stand ln 1 : 44
stand ln 2 : 68

Main content:

A bitmapped map containing information on soil organic substances content.

Classifier precision:

Soil organic substances content is estimated by the twelve-point scale:
1 : < 1 %
2 : 1.1 - 1.5 %
3 : 1.51 - 2.0 %
4 : 2.1 - 2.5 %
5 : 2.51 - 3.0 %
6 : 3.1 - 3.5 %
7 : 3.51 - 4.0 %
8 : 4.1 - 4.5 %
9 : 4.51 - 5.0 %
10 : 5.1 - 7.0 %
11 : 7.1 - 10.0 %
12 : > 10 %

Map compilation procedure:

The soil organic substances content layer has been obtained on the basis of the generalized Russian Soils Map (1993) (scale - 1: 4 000 000) which was combined with the database linking the skeleton of the soil types' map with the data about organic substances content of soils of the given type.

Data sources:

Russian Soils Map. scale 1 : 4 000 000. Roskartografiya Publishers, 1993.