Quantifying the influence of long-term overexploitation on deep groundwater resources across Cangzhou in the North China Plain using InSAR measurements

被引:39
作者
Bai, Lin [1 ,2 ,3 ]
Jiang, Liming [3 ,4 ]
Zhao, Yong [5 ]
Li, Zhenhong [1 ,2 ]
Cao, Guoliang [6 ]
Zhao, Chaoying [1 ,2 ]
Liu, Rong [5 ,7 ]
Wang, Hansheng [3 ,4 ]
机构
[1] Changan Univ, Coll Geol Engn & Geomat, Xian 710054, Peoples R China
[2] Minist Educ, Key Lab Western Chinas Mineral Resource & Geol En, Xian 710054, Peoples R China
[3] Chinese Acad Sci, Innovat Acad Precis Measurement Sci & Technol, State Key Lab Geodesy & Earths Dynam, Wuhan 430077, Peoples R China
[4] Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
[5] China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100038, Peoples R China
[6] China Univ Geosci Beijing, Sch Water Resources & Environm, Beijing 100083, Peoples R China
[7] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
基金
中国国家自然科学基金;
关键词
InSAR; Cangzhou; Skeletal storativity; The deep GWS depletion; Sustainability of the confined aquifer system; AQUIFER-SYSTEM; STORAGE; VALLEY; HEAD;
D O I
10.1016/j.jhydrol.2021.127368
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Deep groundwater (confined groundwater) is the major water source in Cangzhou, situated in the North China Plain. Long-term deep groundwater overexploitation has resulted in substantial groundwater storage (GWS) depletion. Quantifying the influence of long-term overexploitation on deep groundwater resources is extremely important to maintain the sustainability of the confined aquifer system. In this study, we estimate the amount of total exploitable GWS and total GWS depletion during 1960-2010 in the confined aquifer system across Cangzhou by combining use of the InSAR deformation, estimated skeletal storativity, hydraulic head observations, and hydrogeological data. The total exploitable GWS in Cangzhou was 26.1 +/- 21.3 km3 and decreased by 13.0 +/- 8.1 km3 - 13.6 +/- 8.5 km3 until 2010, accounting for 49.8%-52.2% of the total amount. It is worth noting that 87.4%-87.9% of the total GWS depletion is irreversible, leading to a substantial permanent loss of groundwater storage capacity. Our results suggest that the long-term overexploitation has threatened the water supply security in Cangzhou. It is demonstrated that InSAR can be an effective tool for assessing the "physical state" and "sustainable development potential" of a confined aquifer system.
引用
收藏
页数:9
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