Abstract

Analyzed are the spatial and temporal variations of the sediment oxygen demand rate in the Mozhaisk Reservoir. It is demonstrated that this rate in summer depends both on the sediment characteristics and on the biological and meteorological factors. It is revealed that the content of labile organic substances in the silt is of great importance for the oxygen consumption rate (all other factors being equal). The inflow of these substances to the bottom is regulated by the water column stratification depending considerably on weather conditions. Estimated is the contribution of main organic matter consumers in the bottom sediments.

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