Ural River

FORMATION OF THE HYDROCHEMICAL REGIME OF THE UPPER REACHES OF THE URAL RIVER UNDER CONDITIONS OF TECHNOGENIC FLOW REGULATION

Changes in the chemical composition of water of the Ural River (upstream) along the section of regulation by a large artificial reservoir (the Iriklinsky reservoir) are shown. Decreased concentrations of major ions, organics, nutrients, and, especially, compounds of metals (copper, manganese, iron and aluminum) in the area below the reservoir were recorded. It was noted that physicochemical processes inside the Iriklinsky reservoir occurring at low water exchange could be the possible causes of these changes of the considered parameters.