超采引起的河北平原东部地下淡水和地下咸水变化--以廊坊市东部和沧州市东部为例  

Change of underground fresh and underground salt water caused by groundwater over-extraction in the eastern Hebei Plain:A case study of the eastern Langfang City and the eastern Cangzhou City

作　　者：王振华 郭睿 李彦彬 李振雄 郭鑫鑫 WANG Zhenhua;GUO Rui;LI Yanbin;LI Zhenxiong;GUO Xinxin(Land and Resources Exploration Center,Hebei Geology and Mineral Resources Exploration Bureau(Hebei Mining and Geological Disaster Emergency Rescue Center),Hebei Shijiazhuang 050081,China)

机构地区：[1]河北省地质矿产勘查开发局国土资源勘查中心(河北省矿山和地质灾害应急救援中心),河北石家庄050081

出　　处：《中国地质调查》2024年第2期81-89,共9页Geological Survey of China

基　　金：河北省自然资源厅专项地质调查项目“京津冀协同发展文安、任丘、大城、青县1∶5万环境地质调查(编号:454-0503-YBN-7W27)”资助。

摘　　要：自1975年以来,河北平原东部地下水严重超采引起一系列地质环境问题。基于河北平原东部(廊坊市东部和沧州市东部)2017年高密度地下水位统测数据、地下水开采量数据,判断河北平原东部地下水开发现状。通过分析研究区深浅层地下水水位数据、开采量和资源潜力,认为近年来河北平原东部地下淡水存在严重超采情况。通过对研究区深层地下水取样分析数据与水质历史背景数据开展对比分析,同时布设高密度电法进行物探解译,得出现状地下咸水底界,将之与20世纪70年代研究区的地下咸淡水分界数据对比认为,研究区地下淡水超采,引发地下咸淡水分布产生较大变化,同时对引起变化的主导因素进行了分析。研究有助于深入认识河北平原东部咸水区地下水开发利用条件,为推动河北平原东部咸水区的地下淡水资源合理开发提供科学依据。A series of geological environment problems have been caused by groundwater over-extraction in eastern Hebei Plain since 1975.Based on high-density groundwater level measurement data and groundwater extraction data of the eastern Hebei Plain(the eastern Langfang City and the eastern Cangzhou City)in 2017,the authors in this paper analyzed the groundwater exploitation.The underground fresh water in the eastern Hebei Plain was seriously over extracted in recent years by groundwater level analysis of deep and shallow aquifers,exploitation and resource potential.The top and bottom of curtent salt-water system was bounded through comprehensive comparison between deep water sample analysis data and historical background data of water quality,and based on high density electrical prospecting interpretation.Besides,it is concluded that the distribution of salt and fresh water has changed greatly caused by groundwater over-extraction,through comparison with the 1970 s’boundary between salt water and fresh water,and the main factors causing the change were analyzed.This research is helpful to understand the development and utilization conditions of groundwater and provide scientific basis for promoting the rational development of groundwater resources in the saltwater area of the eastern Hebei Plain.

关 键 词：地下淡水超采 地下咸淡水变化 垂向变化 平面变化 

分 类 号：P641.1[天文地球—地质矿产勘探]