ON THE DYNAMICS OF ORGANIC-MATTER IN SOILS

The performance of the ecosystem and biospheric functions of soils is mainly controlled by the dynamics of soil organic matter. The presence of feedback relationships, which are associated with biota activity i n the ecosystem, governs the rate of decomposition of organic matter i n compliance with the rate of cycling of biophilous elements. A number of peculiar features of pedogenesis enable us to consider soil a self -organizing and self-regulating subsystem of biogeocenosis.