Soil orders and their areas on the updated soil map of the Russian Federation, 1 : 2.5 M scale

An analysis of the soil cover Russia as presented on map a scale 1 : 2.5 M with use new substantive-genetic classification system has been performed at level orders. The high classification-based generalization makes it possible to assess most general patterns geography and resources identify changes that have occurred result renaming each polygon classification. areas occupied by orders calculated. In total, there are 24 map, including 21 natural soils 3 (agrozems, turfzems, stratozems) anthropogenically transformed soils. Soils agro-abrazems, chernozems, turbozems not map. As small-scale maps Russia, zonal regularities in East European Plain lithogenic mosaicity Central Eastern Siberia clearly seen. includes were absent initial map: cryozems, cryometamorphic hydrometamorphic soils, lithozems, cryoabrazems, cryoturbozems, urbostratozems, organo-accumulative characteristic humid conditions predominate: Al-Fe-humus (Podzols) (319.2 ha, or 19% land fund Russia), gley (Gleysols) (223.9 13%), texture-differentiated (Luvisols Regosols) (190.8 11%), peat (Histosols) (143.5 8%) occupy more than half territory Russia. area humus-accumulative suitable for arable is 103.6 ha (6%). Considerable cryozems (Turbic Cryosols) (111.4 ha), iron-metamorphic (Chromic Cambisols) (92.7 structure-metamorphic (Cambisols) (47.3 pale-metamorphic (Cambic (12.8 (Calcic Gleysols) (4.3 (Cambisols Gelic) (3.4 which corresponds vast continental balanced moisture conditions. Separate place belongs strict limitations (lithosols (Leptosols), weakly developed (Regosols, Nudilithic Leptosols)) but playing important biospheric functions requiring special protection.