福建永安坑边岩溶区地下水连通试验应用研究  

Application of Groundwater Connectivity Tracing Test in Kengbian Karst Area in Yong’an County,Fujian

作　　者：田然 李娟 罗朝晖 TIAN Ran;LI Juan;LUO Zhaohui(School of Environmental Studies,China University of Geosciences(Wuhan),Wuhan 430078,China;Luoshan Provincial Geopark Management Center,Zhaoyuan 265400,China)

机构地区：[1]中国地质大学(武汉)环境学院,湖北武汉430078 [2]招远罗山省级地质公园管理中心,山东招远265400

出　　处：《安全与环境工程》2021年第6期144-150,共7页Safety and Environmental Engineering

摘　　要：地下水的示踪试验是揭示地下水流动路径的一种有效手段,特别是在岩溶地区。根据福建永安坑边岩溶地区地下水系统研究过程中的连通示踪试验,从示踪剂的选取、岩溶发育情况、示踪剂投放点与接收点之间的距离等方面探讨了地下水连通试验的可靠性,并推求了该岩溶地区地下水系统的划分,认识其水文地质条件。结果表明:该区域的地下水系统可划分为3个次级汇水区,并初步得出了该岩溶区的地下水流量、流速、流向等基本参数;区域补径排类型可分为三类,即(1)面状补给、线状径流、分散式排泄,(2)线状补给、线状径流、带状排泄,(3)面状补给、线状径流、集中排泄。The tracer test is now an effective method to explore groundwater flow path,especially in karst area.This paper carries out a connectivity tracer test for the groundwater system study in Kengbian karst area,Yong’an County,Fujian,and discusses the reliability of the tracer test based on the choice of the tra-cer,karst development and tracer releasing and receiving sites.Then the paper studies the division of groundwater system in the karst area and understand the hydrogeological condition.The results show that there are three subcatchment areas in Kengbian area,and some hydrogeological parameters such as discharge,flow direction and velocity are calculated.The regional characteristic of recharge/runoff/discharge is recognized as the following three types:(1)areal recharge,linear runoff and dispersal discharge;(2)linear recharge,linear runoff and zonal discharge;(3)areal recharge,linear runoff and centralized discharge.

关 键 词：连通试验 示踪剂 岩溶地下水系统 福建永安 

分 类 号：X143[环境科学与工程—环境科学]