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Dark-humus soils on the updated soil map of Russian Federation scale 1 : 2.5 M
Dokuchaev Soil Bulletin
The dark-humus soil type was included in the updated legend of the Soil Map of the Russian Federation at scale 1 : 2.5 M, converted to the system of Soil Classification of Russia. The soil profile starts with the dark-humus horizon gradually merging to the parent rock; any mid-profile diagnostic horizons are absent. Large areas of dark-humus soils are found in the forest-steppe, steppe and taiga zones of the European Russia, Western and Central Siberia, in the Trans-Baikal region, thedoi:10.19047/0136-1694-2021-108-31-54 fatcat:usxv3wvwcrbr7lfq2fxbr4qa4m