COMPOSITION AND GENESIS OF ORGANIC MATTER IN SOILS AND BOTTOM SEDIMENTS OF THE RESIDENTIAL ZONE OF KHABAROVSK

The features of distribution and composition of organic and biotic components of soils and bottom sediments formed under conditions of anthropogenic transformation of the landscape were studied. It was found that the leading role in the formation of organic matter belongs to the microbial-destructive component, which is consistent with the high proportion of hydrocarbon-oxidizing bacteria in microbial communities. It is shown that during secondary soil formation on ash dumps, a significant role in the formation of organic matter belongs to microalgae.