基于水均衡分析岩溶山区地下水系统特征——以某开放型岩溶地下水系统为例  

Characterization of groundwater systems in karst mountains based on water balance analysis--An open karst groundwater system as an example

作　　者：王万金 郑明英 WANG Wan-jin;ZHENG Ming-ying(Geological Brigade,Guizhou Geological and Mineral Exploration and Development Bureau,Guiyang,Guizhou 550081 china)

机构地区：[1]贵州省地质矿产勘查开发局111地质大队,贵州贵阳550081

出　　处：《地下水》2023年第2期24-26,共3页Ground water

基　　金：贵州省地勘基金研项目(黔自然资函[2021]244号);贵州省水文地质志修编(MCHC-ZG20212206-1)。

摘　　要：开放型地下河系统是贵州省典型的、重要的集中排泄型岩溶地下水系统之一。以贵州某典型地下河系统为均衡研究区,采用大气降水入渗系数法和泉水流量汇总法计算各均衡项,掌握地下水均衡现状,计算地下水径流量Q径,综合抽水试验、连通试验和水样测试等成果,综合分析研究区内地下水量和水质特征,结果认为:该地下河系统的补给源主要为大气降水,具有“快补快排”的补径排特征,系统的“多重性”致使该类型地下河系统具有一定的调蓄能力,系统地下水量的不均衡和水质的异常现状均表征出了该开放型地下河系统的原生水环境发生改变。总结出岩溶山区地下水系统的水均衡与降雨量、岩溶、构造、水文地质结构等条件密切相关。水均衡分析对区域地下水环境改变的指示意义。The open underground river system is one of the typical and important centralized drainage karst groundwater systems in Guizhou Province.A typical underground river system in Guizhou is used as the equilibrium study area,the atmospheric precipitation infiltration coefficient method and the spring flow summary method are used to calculate each equilibrium term,to grasp the current situation of groundwater equilibrium,to calculate the groundwater runoff Q-diameter,to integrate the results of pumping tests,connection tests and water sample tests,and to comprehensively analyze the groundwater quantity and water quality characteristics in the study area,the results are considered:The recharge source of this underground river system is mainly atmospheric precipitation,which has the characteristics of"fast recharge and fast discharge",and the"multiplicity"of the system makes this type of underground river system has certain storage capacity.It is concluded that the water balance of groundwater system in karst mountains is closely related to the conditions of rainfall,karst,tectonics,hydrogeological structure and so on.Water balance analysis is indicative of changes in the regional groundwater environment.

关 键 词：岩溶 地下水 均衡 系统 

分 类 号：P641.134[天文地球—地质矿产勘探]