浅层地下水水文地球化学演化及同位素特征——以宿州市城郊为例
Hydrogeochemical Evolution and Isotopic Characteristics of Shallow Groundwater—A Case Study of Suzhou City Suburbs
摘要: 本课题以安徽省宿州市城郊浅层地下水20组样品为研究对象，运用Piper图、Gibbs图和多元统计分析等方法对其水化学特征、水岩作用、离子来源等水文地球化学及同位素特征进行研究。结果表明：pH变化范围为7.17~7.94，属于弱碱性水，符合《生活饮用水卫生标准》(GB 5749-2006)中6.5 < pH < 8.5的要求；常规离子含量排序为：HCO3- > Ca2+ > Cl− >SO42- > Na+ > Mg2+ > K+，阴阳离子的优势离子分别是HCO3- 和Ca2+；研究区水文地球化学作用包括硫酸岩矿物的溶解、硅酸岩矿物风化和碳酸岩矿物的溶蚀作用；地下水主要成分主要受大气降水作用。
Abstract: In this study, 20 sets of samples of shallow groundwater of Suzhou City Suburbs, Anhui Province, were studied for the hydrogeochemical and isotopic characteristics of their water chemical characteristics, water-rock interaction, and ion source by using Piper diagram, Gibbs diagram and mul-tivariable analysis. The results show that the pH range is 7.17~7.94, which is weak alkaline water and meets the requirements of 6.5 < pH < 8.5 in the Sanitary Standard for Drinking Water (GB 5749-2006); the conventional ion content is ranked as follows:HCO3- > Ca2+ > Cl− >SO42- > Na+ > Mg2+ > K+, and the dominant ions of anions and cations are HCO3- and Ca2+, respectively; the water chemistry characteristics of the study area include the dissolution of sul-fate, the weathering of silicate, and the dissolution of carbonates; principal groundwater components are mainly formed by atmospheric precipitation.
文章引用：陈俊萱, 马杰, 陈加胜, 朱博杰, 王澜, 沈孝珂. 浅层地下水水文地球化学演化及同位素特征——以宿州市城郊为例[J]. 自然科学, 2023, 11(4): 679-685. https://doi.org/10.12677/OJNS.2023.114081

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