基于同位素与水化学分析法的地下水补径排研究——以苏锡常地区浅层地下水为例  

Study on Replenishment,Runoff and Discharge of Shallow Groundwater Based on Isotope and Hydrochemishtry Analysis:A Case of Shallow Groundwater in Suzhou-Wuxi-Changzhou Area

作　　者：陶芸[1] 陈锁忠[2] 都娥娥[2] 

机构地区：[1]江苏省地质调查研究院,江苏南京210018 [2]南京师范大学虚拟地理环境教育部重点实验室,江苏南京210046

出　　处：《水文》2011年第3期76-81,共6页Journal of China Hydrology

基　　金：国家高技术研究计划(863计划)-地下水供水勘测空间辅助决策模型与关键技术研究(2009AA12Z223)

摘　　要：在分析研究区浅层地下水空间分布特征的基础上,采用同位素与化学分析相结合的方法研究苏锡常浅层地下水的补径排条件。利用氢氧同位素的分析结果,建立潜水与微承压水的δD-δ18O关系曲线,分析潜水含水层与河流、湖泊等地表水体关系以及微承水的蒸发程度;利用放射性同位素氚与14C研究微承水与现代水的补给关系;利用常规的水化学分析方法研究浅层地下水补给源的变化问题。结合研究区地下水水位、地层岩性、地形、地貌等多方面因素综合分析了浅层地下水的补径排条件,从而指导苏锡常地区浅层地下水合理开发利用。According to the spatial distribution characteristics of shallow groundwater in Suzhou-Wuxi-Changzhou area,replenishment,runoff and discharge conditions of the shallow groundwater were studied by isotope and hydrochemishtry analysis.The δD-δ18O% curve was established for phreatic and micro-confined groundwater based on the analyzed results of hydrogen and oxygen isotope,so as analyze the relation between the phreatic aquifer and surface water body,and the evaporation degree of micro-confined groundwater.The replenishment relation between micro-confined groundwater and current water was studied with radioisotope tritium and 14C.The replenishment source change of the shallow groundwater was studied with the conventional method of chemical analysis.

关 键 词：环境同位素 水化学 补径排条件 浅层地下水 苏锡常 

分 类 号：P641[天文地球—地质矿产勘探]