GENESIS OF THE SECOND HUMUS HORIZON IN THE GREY FOREST SOILS OF KRASNOYARSK FOREST-STEPPE

Abstract

The paper considers the genesis of the second humus horizon of the grey forest soil. The polygenetics of the second humus horizon in a profile of forest soils is discussed. According to the relation of optical density of fractional structure of humus substances and the data of the spore-pollen analysis, the buried (fossil) nature of formation of the second humus horizon is proved.

Keywords

• soil, soil genesis, soil profile, second humus horizon, humus, fractional humus structure, optical density of humus substances