深切河谷区开放型岩溶地下水系统特征研究

Characters of Open Karst Goundwater System in the Deep-incised Valley

深切河谷区开放型岩溶地下水系统中水文地质条件复杂、生态环境脆弱,地下找水难度大。本文以贵州息烽养龙司地区乌江深切峡谷的斜坡地带地下水系统为研究场,以岩溶地质学、水文地质学、生态环境学和工程统计学等为指导,以地质调查、地球物理勘探和钻探为手段进行资料和数据的采集,总结了该类岩溶地下水系统中岩溶发育和地下水赋存的基本特征,揭示了流域内生态环境脆弱的本质,以及找水成井率低下的原因,提出了岩溶水合理开发利用的方向。

In the open karst groundwater system of deep-incised valley,the hydro-geologic condition is complex,the entironment is weak and the groundwater exploration is hard.In this paper,it takes the groundwater system on the slope of Wujiang deep-incised valley in Yanglongshi area as the studying target,uses the knowledge of karst geology,hydrogeology,ecological environment,engineering statistics,gathers the information and data by geologic survey,geophysical exploration and drilling,then the basic characters of the karst development and groundwater occurrence of this kind of karst groundwater system is summarized.It reveals the reality of weak ecological environment in the drainage area,finds out the reason of low rate of water exploration,then the way of reasonable karst water development is carried out.