LONG-TERM CHANGES IN THE QUALITY OF RIVER WATERS IN UZBEKISTAN
This article presents the results of an analysis of a long-term change in the amount of salts entering irrigated water together with irrigation water and the composition of these salts, with the allocation of a fraction of toxic salts affecting the reclamation state of the studied agrolandscapes. One of the aspects of the research is the study of the long-term changes in the mineralization and chemical composition of the region's river waters. In the laboratory of hydrometry and metrology of NIIIVP, within the fundamental topic: «Genesis, formation and regime of surface waters of Uzbekistan and their influence on pollution and salinization of agrolandscapes», scientific research is carried out on the basis of a synthesis of available stock materials and field studies in various regions of the country.