Influence the degree of soils erodibility at east part of Oka-Don plain on their biological activity

Humus stocks in the arable horizon in not bald-headed and bald-headed soils at east part of Oka-Don Plain are established. The contents in soil the united amino acids playing a role in biochemistry of gumus formation is defined. The number of microorganisms and activity of soil enzymes in chernozem ordinary to different degree of erodibility is shown. Features of influence the biological activity of soils on humus state at arable chernozem are opened.