安全与环境工程2016，Vol.23Issue(5)：7-12,42,7.DOI:10.13578/j.cnki.issn.1671-1556.2016.05.002
香溪河岩溶流域水文地球化学特征分析
Analysis of Hydrogeochemical Characteristics of Karst Basin in Xiangxi River
摘要
Abstract
Carbonate rock is widely distributed in Xiangxi River basin of Yichang,Western Hubei.The karst groundwater is an extremely important water source for the local residents.To research the hydrochemical composi-tion and internal rules of groundwater has great significance to the rational development and utilization of the groundwater.Focused on the karst groundwater,this paper analyzes the hydrogeochemical characteristics of karst basin in Xiangxi River in combination with precipitation,groundwater in non-carbonaceous rock and surface water, which are closely linked to karst groundwater.The results show that the precipitation of the study area is weak acid water with low salinity and hardness and of strong erosion.The chemical composition of surface water reflects the lithological distribution,as the main stream is more influenced by agricultural activities than industrial activities. Under the control of the steep terrain,total dissolved solids of the groundwater is low,mainly ranging from 150 to 300 mg/L.Under the control of lithology,there is a sensible difference in hydrochemical composition between water samples collected in carbonate rock,magmatic rock and clastic rock and the Shukalief classification of which are mainly HCO3-Ca type,HCO3-Ca+Mg type and HCO3-Mg+Ca type.Influenced by the precipitation and tempera-ture,seasonal characteristics of the mineral solubility vary.Agricultural activities have little effect on the quality of groundwater.关键词
香溪河岩溶流域/水化学特征/时空分布特征/月动态变化Key words
karst basin of Xiangxi River/hydrochemical characteristics/spatial and temporal distribution characteristics/monthly dynamic change分类
资源环境引用本文复制引用
周彬,罗朝晖,周宏,刘建..香溪河岩溶流域水文地球化学特征分析[J].安全与环境工程,2016,23(5):7-12,42,7.基金项目
中国地质调查局项目 （）
