ЯКІСТЬ ВОДИ У МАГІСТРАЛЬНОМУ КАНАЛІ КАХОВСЬКОЇ ЗРОШУВАЛЬНОЇ СИСТЕМИ

Abstract

The physical-geographical and climatic conditions of the territories of the steppe zone of Ukraine, where the Kakhovka irrigation system is constructed, is considered. The role of the Kakhovka main channel in increasing the volumes of production of agricultural products in the steppe areas, intensification of all branches of agriculture and increasing the fertility of the land under irrigation conditions are determined. The volumes of water use for irrigation by agricultural producers during the vegetative period have been analyzed. The normative documents regulating the quality of water for irrigation by agronomic and environmental criteria are considered. The results of the analysis of the chemical composition of the water of the Kakhovka main channel within the limits of the Kherson and Zaporizhzhia oblasts, Kakhovsky reservoir, in the area of the location of the Main Pumping Station, for the period 2015-2017, are presented, an environmental assessment of the quality of water used for irrigation and drinking needs was conducted. Having analyzed the materials of scientific literature and annual reports of regional departments of ecology and natural resources, the main anthropogenic sources of pollution of hydro-amelioration objects have been identified. Provided recommendations for preventing the introduction of pollutants into reclamation facilities and improving the quality of water for irrigation and drinking purposes. The possible consequences of the action of pollutants on hydrobiocenoses and the aqueous medium as a whole are determined. Also established the role of hydrobiots in the processes of self-clearing of the water from pollutants.