地质学报2025，Vol.99Issue(5)：1792-1806,15.DOI:10.19762/j.cnki.dizhixuebao.2023065
近10年北京平原区地下水水位变化及与地面沉降的关系研究
Groundwater level changes and their impact on land subsidence in the Beijing Plain during the past 10 years
摘要
Abstract
There is a growing concern regarding the environmental geological problems resulting from the over-exploitation of groundwater in the Beijing area.In response to this,active measures such as groundwater mining restrictions and artificial recharge have been implemented since 2010 to address the severe groundwater shortage in Beijing.To further analyze the impact of the implementation of various water management measures on regional groundwater and land subsidence since 2010,this paper analyzes the dynamic evolution characteristics of regional groundwater during the period of 2010～2020.It utilizes long-term monitoring data,quantifies the contribution of various measures in decelerating the decline of groundwater levels,and investigates the deformation characteristics of soil layers under groundwater level recovery.The results show that:① From 2010 to 2020,the rate of decline of groundwater levels in the plains slowed down.However,groundwater levels continue to decline in most areas of the alluvial plains,while experiencing a significant rise in the root fan,middle fans,fan margins,and some areas of the alluvial plains.② In the Chaobai River basin,the significant rise in groundwater levels at the root,middle,and margins of the alluvial fan can be attributed to the artificial recharge of the Chaobai River;groundwater extraction restrictions are the main factors contributing to the significant rise in groundwater levels in other areas of the Beijing Plain;and the continuous decline in groundwater levels in the alluvial plain is primarily driven by the increase in domestic water use.③ From 2010 to 2020,the third and fourth aquifer groups exhibit the most significant deformation layers,with deformation rates ranging from 11.07 to 12.80 mm/a.On the other hand,the first and second aquifer layers show rebound,with a maximum cumulative rebound of 5.6 mm.④ The dilation of soil caused by the rise of groundwater levels results in two types of deformation in the soil layers.The first type is elastic deformation,which occurs synchronously with the change in groundwater level.The second type is residual deformation,which lags behind the change in groundwater level.The results of this paper provide valuable technical support for understanding the effectiveness of different water management measures.These insights can contribute to the development of regional groundwater resource management strategies and the accurate prevention and control of subsidence.关键词
地面沉降/北京平原区/地下水水位/降水量/灰色关联度分析Key words
land subsidence/Beijing Plain/groundwater level/precipitation/grey correlation analysis引用本文复制引用
赵龙,刘元章,沙特,王新惠,齐鸣欢,蒋小伟,李玉梅,罗勇,崔文君,田苗壮,王树芳,田芳,许亮..近10年北京平原区地下水水位变化及与地面沉降的关系研究[J].地质学报,2025,99(5):1792-1806,15.基金项目
本文为国家自然科学基金青年基金项目(编号42102235)、中央级公益性科研院所基本科研业务专项(编号IGCEA2121)、北京市科技计划课题(编号Z191100001419007)和北京市财政项目(编号11000022T000000440128)联合资助的成果. （编号42102235）
