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对昆仑山前平原到塔克拉玛干沙漠腹地的地下水观测断面进行取样分析,利用Piper三线图及NETPATH水质演化模型,阐明了区域地下水化学特征,揭示了地下水化学演化机理,旨在为研究区地下水的可持续开发、水质保护与改善提供科学依据。结果表明:(1)研究区地下水化学类型为Na-Mg-Cl-SO_4型和Na-Cl-SO_4型;(2)强烈的蒸发浓缩作用,芒硝、岩盐、辉石的溶解作用,较为显著的Ca~(2+)/Na~+离子交换作用是研究区地下水化学组成的主要演化过程。
The groundwater observation section of the Kunlun piedmont plain to the hinterland of Taklamakan Desert was sampled and analyzed. Based on the Piper three-line diagram and the NETPATH water quality evolution model, the regional groundwater chemical characteristics were elucidated, and the chemical evolution mechanism of groundwater was revealed, which aims to make the groundwater sustainable in the study area Development, water quality protection and improvement to provide a scientific basis. The results show that: (1) The chemical types of groundwater are Na-Mg-Cl-SO_4 and Na-Cl-SO_4 in the study area; (2) the strong evaporation and concentration, the dissolution of glauber salt, The Ca ~ (2 +) / Na ~ + ion exchange is the main evolutionary process of groundwater chemical composition in the study area.