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首页> 外文期刊>MOJ Ecology & Environmental Sciences >Changes in the concentration of chloride ions in the Volga water (section of the Zhigulevsky hydroelectric complex)
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Changes in the concentration of chloride ions in the Volga water (section of the Zhigulevsky hydroelectric complex)

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摘要

For a quantitative assessment of changes in the concentration of chlorides, an analysis of the data of hydrological and hydrochemical observations obtained on the Volga River in the alignment of the Zhigulevsky hydroelectric complex was carried out. For the period 2001-2018 the average annual concentration of chlorides was 27mg/dm3, the highest –31mg/dm3, and the lowest - 24mg/dm3. The chloride content was characterized by seasonal variability. During the winter season, the concentration of chlorides increased. The maximum was observed in April, before the beginning of the spring flood. During the spring flood, the chloride concentration decreased, reaching the lowest values ​​in May at the peak of the spring flood. In the summer, the concentration of chlorides gradually increased, and in the autumn, it decreased. The intra-annual amplitude of the average monthly concentrations of chlorides was 14-42mg/dm3. Such significant intra-annual changes in chlorides in the outlet section of the Kuibyshev reservoir are due to the interaction of the surface and underground components of the water flow of the Cheboksary and Nizhnekamsk reservoirs. In low-water years, the concentration of chlorides increased, and in high-water years, it decreased.

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  • 来源
    《MOJ Ecology & Environmental Sciences》 |2021年第3期|114-117|共4页
  • 作者

    VA Seleznev; AV Selezneva; KV Bespalova;

  • 作者单位

    Samara Federal Research Center of the Russian Academy of Sciences, Institute of Ecology of the Volga Basin of the Russian Academy of Sciences;

    Togliatti State University;

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  • 正文语种 英语
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