Hydrochemical characteristics and formation mechanism of groundwater in Yi'nan, East Wenhe River basin in Shandong Province

被引：0
|
作者：
Wei S. [1 ,2 ,3 ]
Ding G. [1 ,2 ,3 ]
Yuan G. [4 ]
Wang L. [5 ]
Nie Y. [1 ,2 ,3 ]
Du J. [1 ,2 ,3 ]
机构：
[1] No.801 Hydrogeological and Engineering Exploration Brigade of Shandong Exploration Bureau of Geology and Mineral Resources, Jinan
[2] Key Laboratory of Groundwater Resources and Environment, Shandong Provincial Bureau of Geology & Mineral Resources, Jinan
[3] Shandong Province Groundwater Environmental Protection and Rehabilitation Engineering Technology Research Center, Jinan
[4] Shandong GEO-Surveying & Mapping Institute, Jinan
[5] Institute of Hydrogeology and Environmental Geology, CAGS, Shijiazhuang
来源：
Dizhi Xuebao/Acta Geologica Sinica | 2021年 / 95卷 / 06期
关键词：
Groundwater resources; Hydrogeochemistry; Karst; Pollution; Water rock interaction; Yi'nan of East wenhe River basin;
D O I：
10.19762/j.cnki.dizhixuebao.2020285
中图分类号：
学科分类号：
摘要：
As one of the most important water sources, groundwater has been significantly affected by human activities. The study of chemical characteristics and formation mechanism of groundwater is of great significance for the rational utilization of groundwater resources. Various types of aquifers are distributed in Yi'nan, East Wenhe River basin where agriculture and aquaculture are well-developed. Therefore, this area is ideal for the study of formation and groundwater hydrochemistry under the influence of human activities. The Piper diagram, ion ratio method, mathematical statistical methods (correlation analysis, factor analysis, cluster analysis) and other methods are used to study the groundwater hydrochemical characteristics and formation mechanism in the study area. The results show that the groundwater hydrochemical types are mainly HCO3-Ca and HCO3-Ca•Mg, and the TDS content is between 243 and 1473 mg/L. The HCO3-, SO42-, Ca2+and Mg2+ in groundwater mainly come from the dissolution of carbonate and sulfate minerals, while Na+, K+, Cl- and NO3- mainly come from the dissolution of halite and pollution by human activities. The effect of water-rock interaction on groundwater hydrochemistry exceeds 62.024%. The number of groundwater samples with obvious influence of human activities accounts for 13.6% of the total groundwater samples, and the contribution of anthropogenic impacts to groundwater hydrochemistry reaches 20.318%. The river valley plain is obviously polluted by human activities such as agriculture and aquaculture. © 2021, Science Press. All right reserved.
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页码：1973 / 1983
页数：10
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