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 Discharg of the Shallow Groundwater Based on the Isotope and Hydrochemishtry Analysis Methods——For Example the Shallow Groundwater in Su-Xi-Chang Area

作　　者：张秝湲[1] 陈锁忠[2] 都娥娥[2] 

机构地区：[1]江苏省水资源服务中心,江苏南京210029 [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：《南京师大学报（自然科学版）》2011年第2期107-112,共6页Journal of Nanjing Normal University(Natural Science Edition)

基　　金：国家“863”计划(2009AA12Z223);江苏省高校自然科学研究重大项目(10KJA170028)

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-1δ8O%关系曲线,分析潜水含水层与河流、湖泊等地表水体关系;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途径.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.On the basis of analysis and study of spatial distribution characteristics of shallow groundwater,this paper studys replenishment,runoff and discharg conditions of the shallow groundwater using isotope and hydrochemishtry analysis methods in Su-Xi-Chang area.The δD-δ18O% curve is established for phreatic and micro-confined undergroundwater by the analysis results of hydrogen and oxygen isotope.According to the δD-δ18O% curve,analyzing the relations of the phreatic aquifer with rivers,lakes and other surface water,and the evaporation degree of micro-confined groundwater.The replenishment relations of micro-confined grounderwater and modern water are studyed by radioisotope tritium and 14C.The problem of the shallow groundwater replenishment sources change is studyed by the conventional method of chemical.That synthetically analyze the conditions of shallow groundwater replenishment runoff and discharge combining with groundwater level,lithology,topography and other aspects,in order to guide the rational development and utilization of shallow groundwater in Su-Xi-Chang.

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]