Organic substance mineralized pool in agricultural chernozems of the Middle Siberia south

The issues of the soil organic substance structural-functional organization and the role of its components in soil ecological stability provision are discussed in the article. The organic substance mineralized pool presented by the vegetative remains, microbial biomass and mobile humus, reaches 19-28 t C/hectare in Middle Siberia agricultural chernozems. The component structure peculiarities of mineralized organic substance reflect the process correlation of vegetative remain entrance and decomposition, humus new formation and microbiota activity.