Systematization of Organo-Clay combinations in soils of the center of the Russian Plain

摘要

A systematization of organo-clay combinations in zonal soils of the center of the Russian Plain is suggested. This systematization adequately reflects the zonal features of pedogenesis and agrees with traditional estimates of the ecological state of the soils and their tolerance toward the agrogenic degradation. The four types of organo-clay combinations are characterized by different degrees of humification, aggregation, tolerance toward soil compaction, and tolerance toward soil degradation.