| 引用本文: | 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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| 摘要: |
| 为研究广西典型不同地质背景区水库水化学特征的差异性及其对人类活动的响应，利用2021年8月广西非岩溶区为主的青狮潭水库和以岩溶区为主的大龙洞水库的水化学测试数据，采用Piper三线图、相关性分析等方法分析了两个典型不同地质背景区的水库水化学特征及影响因素。结果表明，典型非岩溶水库的青狮潭水库主要的阴阳离子为SO42-和Ca2++Mg2+，而大龙洞水库作为典型的岩溶水库，其水化学类型均为 Ca-HCO3型，HCO3－和 Ca2+ 是主要的阴阳离子。主要离子呈现一致的空间变化，水库水体的主要离子浓度整体表现为随着水库深度的加深，离子浓度逐渐降低，主要受流量变化的影响。水库的水化学特征主要源于水库内岩石的分化溶解。而SO42－、NO3-主要受人类活动以及大气降水的影响，相较而言，大龙洞水库受人类活动影响更为显著。最后针对水库中出现的问题，提出水库水资源保护的建议和措施。 |
| 关键词: 水化学特征;影响因素;青狮潭水库;大龙洞水库 |
| DOI： |
| 分类号:k |
| 基金项目:气候变化下极端降水事件对水库生态系统的影响----以青狮潭水库为例 |
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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 |
