Effective groundwater level recovery from mining reduction: Case study of Baoding and Shijiazhuang Plain area  

作　　者：Tian Nan Chen Yue Wen-geng Cao En-lin Mu Yang Ou Zhen-sheng Lin Wei Kang 

机构地区：[1]Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang 050061,China [2]Key Laboratory of Groundwater Sciences and Engineering,Ministry of Natural Resources,Shijiazhuang 050061,China [3]Water Resources Management Center,Ministry of Water Resources,Beijing 100053,China [4]North China University of Water Resources and Electric Power,Zhengzhou 450046,China [5]Hebei GEO University,Shijiazhuang 05003,China

出　　处：《Journal of Groundwater Science and Engineering》2023年第3期278-293,共16页地下水科学与工程（英文版）

基　　金：supported by National Natural Science Foundation of China(41972262);Hebei Natural Science Foundation for Excellent Young Scholars(D2020504032).

摘　　要：The effective recovery of water level is a crucial measure of the success of comprehensive groundwater over-exploitation management actions in North China.However,traditional evaluation method do not directly capture the relationship between mining and other equilibrium elements.This study presents an innovative evaluation method to assess the water level recovery resulting from mining reduction based on the relationship between variation in exploitation and recharge.Firstly,the recharge variability of source and sink terms for both the base year and evaluation year is calculated and the coefficient of recharge variationβis introduced,which is then used to calculate the effective mining reduction and solve the water level recovery value caused by the effective mining reduction,and finally the water level recovery contribution by mining reduction is calculated by combining with the actual volume of mining reduction in the evaluation area.This research focuses on Baoding and Shijiazhuang Plain area,which share similar hydrogeological conditions but vary in groundwater exploitation and utilization.As the effect of groundwater level recovery with mining reduction was evaluated in these two areas as case study.In 2018,the results showed an effective water level recovery of 0.17 m and 0.13 m in the shallow groundwater of Shijiazhuang and Baoding Plain areas,respectively.The contributions of recovery from mining reduction were 76%and 57.98%for these two areas,respectively.It was notable that the water level recovery was most prominent in the foothill plain regions.From the evaluation results,it is evident that water level recovery depends not only on the intensity of groundwater mining reduction,but also on its effectiveness.The value of water level recovery alone cannot accurately indicate the intensity of mining reduction,as recharge variation significantly influences water level changes.Therefore,in practice,it is crucial to comprehensively assess the impact of mining reduction on water level recovery by combining t

关 键 词：Water level recovery Water balance Effective mining reduction Coefficient of recharge variation Water level recovery contribution 

分 类 号：P641.8[天文地球—地质矿产勘探]