自然资源遥感2025，Vol.37Issue(2)：108-116,9.DOI:10.6046/zrzyyg.2023367
基于InSAR评估地下水位回升对太原市地面沉降的影响
Land subsidence caused by groundwater level recovery in Taiyuan City
摘要
Abstract
Over the past few decades,excessive groundwater exploitation has led to a significant decrease in the groundwater level and serious land subsidence in Taiyuan City.In recent years,Taiyuan has vigorously implemented strict groundwater management measures and the project of water diversion into Shanxi from the Yellow River,substantially alleviating groundwater overexploitation and gradually recovering groundwater levels in the city.Therefore,it is necessary to scientifically assess the effect of groundwater level revovery on land subsidence.Based on 2003-2010 synthetic aperture radar(SAR)data from ENVISAT and 2017-2021 SAR data from Sentinel-1,this study extracted the land subsidence information of Taiyuan City of both periods using persistent scatterer interferometric SAR(PS-INSAR).Accordingly,this study compared and analyzed the temporal evolution of land subsidence during the two periods by combining the groundwater extraction volumes,water volumes diverted from the water diversion project,and data on groundwater levels.The results show that the land subsidence in Taiyuan City has been significantly mitigated,with the urban area having shifted from subsidence to uplift.In the Xiaodian area,which underwent the most serious land subsidence,the subsidence area expanded.Nevertheless,the overall land subsidence rate decreased,and the subsidence center has moved southward.The main cause for the slowdown of the land subsidence and even the land uplift in Taiyuan is the continuous groundwater level recovery attributed to the reduced groundwater exploitation and the water diversion project.The results of this study provide a scientific basis for fine-scale land subsidence prevention and groundwater management in Taiyuan City under conditions of groundwater level recovery.关键词
地面沉降/沉降速率/时间序列/地下水/时空演变Key words
land subsidence/subsidence rate/time series/groundwater/spatiotemporal evolvement分类
信息技术与安全科学引用本文复制引用
唐伟,闫壮壮,王一鸣,徐方芳,吴烜宇..基于InSAR评估地下水位回升对太原市地面沉降的影响[J].自然资源遥感,2025,37(2):108-116,9.基金项目
国家自然科学基金面上项目"综合多源大地测量研究汾河流域地下水位回升对区域地面沉降的调控作用机制"(编号:42374023)资助. （编号:42374023）
