| Cite this article: | 黎力菊,湘玲,子威.广西典型不同地质背景区水库水化学特征对比分析[J].灌溉排水学报,0,():-. |
| LI Liju,唐,李.广西典型不同地质背景区水库水化学特征对比分析[J].灌溉排水学报,0,():-. |
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| Comparative analysis of hydrochemical characteristics of reservoirs with different geological backgrounds in Guangxi |
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LI Liju1, 唐2, 李1
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1.Guilin University of technology;2.桂林理工大学
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| Abstract: |
| In order to study the difference of hydrochemical characteristics of reservoirs with different geological backgrounds in Guangxi and their response to human activities, the hydrochemical test data of Qingshitan reservoir and Dalong Dong reservoir, which are mainly non-karst areas, were used in August 2021. The hydrochemical characteristics and influencing factors of two typical reservoirs with different geological backgrounds were analyzed by using Piper trigram and correlation analysis. The results show that the main anions of Qingshitan reservoir, a typical non-karst reservoir, are SO42- and Ca2++Mg2+, while the hydrochemistry of Dalong Dong reservoir, a typical karst reservoir, is Ca-HCO3 type, and HCO3- and Ca2+ are the main anions. The main ions show consistent spatial variation. As the reservoir depth deepens, the main ion concentration of the reservoir water gradually decreases, mainly affected by the change of flow. The hydrochemical characteristics of the reservoir are mainly derived from the differentiation and dissolution of rocks in the reservoir. While SO42- and NO3- are mainly affected by human activities and atmospheric precipitation, dalongdong Reservoir is more significantly affected by human activities. Finally, according to the problems in the reservoir, the suggestions and measures of reservoir water resources protection are put forward. |
| Key words: Hydrochemical characteristics;Influencing factors; Qingshitan Reservoir;Dalongdong Reservoir |
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