Organic matter of floodplain lakes in the middle courses of the Ob River during the winter low-water season and the spring flood

Abstract

The features of the organic matter composition of the lake waters of the Ob River floodplain in the winter low-water and the spring flood periods were investigated. It is shown that the organic matter of the studied lakes is significantly different from the organic matter of the Ob water. In the winter low-water season, floodplain lakes accumulate a large amount of organic aromatic allochotic substances, and in the flood there are changes in the composition of organic matter.