The aim of the work is to study the changes in mineralization and general rigidity, as the main indicators of water quality in the high-mountain part of the Cherek Bezengiysky. The investigated section of the r.Cherek Bezengiysky is located on the territory of the Kabardino-Balkarian high mountain state nature reserve, at a considerable distance from sources of anthropogenic impact, therefore, the chemical composition of water is formed only under the influence of natural factors characteristic of this high-altitude catchment area. These indicators of water, river basins with a natural hydrochemical background are of particular interest in the development of water quality standards. In the sampled water samples, in the main phases of the water regime (winter low and summer high water), such indicators as mineralization, total hardness and electrical conductivity were determined. The work presents the results of monitoring studies since 2004. Probabilistic statistical methods can be used to analyze the distribution of spatiotemporal changes in these indicators with no less reason than for water flow, since the chemical indices found in river waters are just as random and independent quantities in the multi-year section, as well as river runoff, since their variation over time depends on a large number of random factors. In connection with this, when analyzing the changes in the mineralization values and the total rigidity along the r.Cerek Bezengiysky, we used the results of systematic, long-term observations that did not change the method of sampling and analysis of water samples, the water regime of the watercourse (regulation, water intake, etc.) . Based on the results of statistical data processing, correlation dependencies between mineralization and general rigidity, mineralization and electrical conductivity have been established, which will allow to optimize the process of monitoring hydrochemical data and can be used in the de-velopment of regional or basin water quality indicators. Using the linear trend method, the trends of long-term changes in mineralization in the water of the high-mountain part of the r.Cherek Bezengiysky in the main phases of the water regime are estimated. Graphs and regression equations are given. New materials of hydrochemical observations on previously unexplored water bodies of the mountain-glacial basin will contribute to understanding the features of the formation of the hydrochemical composition of the region's water bodies. The results of the study make it possible to identify the features of the formation of the chemical composition of waters in the previously unexplored, inaccessible part of the mountain-glacial basin of the r. Cherek Bezengiysky and can be used to inform water protection activities, while developing regional or basin water quality indicators.
|UDC||504.45; 064.2; 543.3.06|
|Issue||2018, № 2 (Т.10)|
|Key words||High-mountainous part of the river basin, r. Cherek Bezengiysky, mineralization, total water hardness.|