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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.
Based on the analysis of the spatial distribution characteristics of shallow groundwater in the study area, the isotope and chemical analysis methods were used to study the conditions of the supplementation and drainage of shallow groundwater in the Su-Xi-Chang area.Using the analysis results of hydrogen and oxygen isotopes, δD-1δ8O% relationship curve, the relationship between surface aquifers and rivers, lakes and other surface water bodies was analyzed; the relationship between micro-bearing water and modern water was studied by using radioactive isotope tritium and 14C; and the conventional water chemical analysis method was used to study the shallow groundwater recharge pathway Combined with the groundwater level, formation lithology, topography and geomorphology in the study area, the supplement conditions of shallow groundwater are comprehensively analyzed to guide the reasonable development and utilization of shallow groundwater in the Su - Xi - Chang area.