【摘要】 利用大量的稳定环境同位素(2H、3H、18O、14C)测试数据和氟利昂(CFC)测年技术,结合区域水文地质条件,系统分析了张掖盆地及上游山区的大气降雨、冰雪融水、山区基岩裂隙水(泉水)、地表水、盆地内水位上升区泉水、地下水(潜水、浅层承压水、深层承压水)的环境同位素特征和相互之间的关联程度,并采用质量守恒定律和氚值含量衰减规律、氟利昂测年技术方法估算了地下水的水源组成和补给年代,初步探讨了水位上升区深层承压水的补给来源和补给途径。研究结果对于重新认识干旱区内陆盆地地下水特别是深层地下水的补给来源和排泄方式,合理开发利用水资源,均有一定的借鉴意义。更多还原

【Abstract】 Using the testing data of constant environmental isotopes(2H、3H、180、14C) and the CFC measure-year technology,on the regional hydr-geology conditions,the paper systematically analysed environmental isotope character and relating extent of each other of atmospheric rainfall,glacier-snow water,mountains bedrock crevice water(spring),surface water,fountain in groundwater level rise area and groundwater(phreatic water,shallow press groundwater and deep press groundwater) in Zhangye basin and upper reaches.Moreover,using the Mass Conservation Law and CFC measure-year technology,roughly estimated the composition and replenishment years of groundwater resources,and discussed the sources and ways of replenishment of deep press groundwater in groundwater level rise area.The research results have definite reference significances for a fresh understand to the deep press groundwater at the arid areas in inland basin,especially for understand of the sources of replenishment and drainage ways of groundwater,and for rational exploiting and using water resources.更多还原