A.R. Medeu, I.M. Malkovsky, L.S. Tolubeeva, M.A. Askarova

(Kazakhstan)

The paper describes the interaction of society and nature in the condition of depletion of natural waters. Such kind of imbalance is ecological situation of Aral and Balkash Sea basins. For improvement of ecological situation the required quality of water for these seas as well as actual volume of waters merging in these reservoirs are suggested.
For prevention of drying up of Balkash Sea it is proposed to divide it into two parts. According to this the construction of wareworks facility in the strait of Saryesik (Uzun-Aral) for regulation of water cycle between western and eastern parts of lake are suggested.