本文通过对岩溶环境地下水水化学成分和微量元素的分析,确定普定县南部地区地下水的化学类型及微量元素的本底值。结合地下河水量变化与矿化度等的相关性,了解了水化学成分的迁移变化规律,为该区岩溶发育规律的研究、水资源的开发利用及综合评价提供了科学依据。 Based on the analysis of chemical composition and trace elements of groundwater in karst environment, the paper determined the chemical type of groundwater and the background value of trace elements in the southern part of Puding county. Combined with the correlation between underground water change and salinity, we know the regularity of migration and chemical composition of water and provide a scientific basis for the study of karst development law, development and utilization of water resources and comprehensive evaluation.