The use of biospheric monitoring in the study of reservoirs in the Volga-Don interfluve of Russia

Abstract

With anthropogenic activity, as well as with changes in climatic, hydrological and landscape regimes, significant structural and spatial shifts occur in existing ecosystems. The deterioration of water quality also significantly affects the state of coastal water zones, structural and species composition. In the course of monitoring the Tsimlyansk reservoir using the AQUA-1 automated watercraft, the quality of natural water was determined, formalized relationships between the abiotic and biotic components of the ecosystem were identified, the ecological state of the water intake zone was predicted, and the functioning of a number of structures that affect the regime and level of the reservoir. In order to improve the quality of water intake water, bioremediation was carried out using the planktonic microalgae Chlorella vulgaris, calculations of the invasion were made using computer programs. On the basis of the conducted monitoring studies, a hydrodynamic model of the reservoir bay was compiled, a model of an automated watercraft for biospheric monitoring was developed, an optimized scheme for the introduction of Chlorella vulgaris into the reservoir. The main biological indicators-indicators of water intake zones have been established, taking into account changes in the hydrological regime. The positive impact of the environmentally safe bioremediation of water at the water intakes of the Tsimlyansk reservoir in order to improve the quality of natural water used for drinking purposes and fish farming is shown.