天津地区典型岩溶水源地地下水埋深变化特征及影响因素研究  

The variation characteristics of groundwater depth and its influencing factors in typical karst water sources in Tianjin Area

作　　者：袁杰[1] 董立新[1] 彭慧 康婧[1] YUAN Jie;DONG Lixin;PENG Hui;KANG Jing(Tianjin Hydraulic Research Institute,Tianjin 300061,China;Tianjin Hydrology&Water Resources Administration Center,Tianjin 300061,China)

机构地区：[1]天津市水利科学研究院,天津300061 [2]天津市水文水资源管理中心,天津300061

出　　处：《水科学与工程技术》2020年第6期45-48,共4页Water Sciences and Engineering Technology

基　　金：国家科技基础资源调查专项(No.2017FY100404);国家重点研发项目(No.2016YFC0401404)。

摘　　要：天津地区不同地质历史时期的地壳运动,发育了大量富水性较好的蓄水构造,有些成为极为重要的饮用水水源地。选取蓟州城关水源地和宝坻下仓水源地作为天津地区典型岩溶水源地,采用2012—2018年地下水埋深、降雨量和开采量资料,对其年内和年际地下水埋深变化的特征进行论述,并选取降水量和开采量作为主要影响因素进行分析。结果表明,两个水源地丰水年年内地下水埋深变化幅度大于枯水年,地下水埋深在年内有一个上升和一个下降过程,其变化相对于大气降水有一定的滞后,两个水源地地下水埋深在2012—2018年之间变化幅度不大,说明其富水性较强、补给条件较好,为合理开发利用水源地地下水资源提供了依据。A large number of groundwater storage structures with good water abundance have developed during the crustal movement in different geological historical periods in Tianjin area,and some of them have become the extremely important drinking water sources.The Jizhou Chengguan water source and Baodi Xiacang water sources were selected as the typical karst water sources in Tianjin area in this paper.The data of groundwater depth,rainfall,and extraction volume from 2012 to 2018 was used to analyze the variation characteristics of groundwater depth and its influencing factors within and between the years.The results showed that the fluctuation margin of groundwater depth is wider in high flow year than in low flow year and there is an increase and a decrease period during the year,which lags behind the variation of atmospheric precipitation.The fluctuation margin of the ground water depth of the two water sources is mederate between 2012 and 2018,which indicating the good water abundance and the replenishment conditions.These can provide the basis for the rational development and utilization of groundwater in water sources.

关 键 词：地下水埋深 变化特征 影响因素 岩溶水源地 

分 类 号：P641.74[天文地球—地质矿产勘探]