Spatiotemporal heterogeneity of land subsidence in Beijing

Duan, Guangyao; Gong, Huili; Chen, Beibei; Li, Xiaojuan; Pan, Xingyao; Shi, Min; Zhang, Hang

doi:10.1038/s41598-022-16674-6

Cited by 4 publications

(1 citation statement)

References 40 publications

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“…Groundwater is a significant freshwater resource and a crucial factor in the water cycle worldwide; it plays a vital role in agricultural irrigation, ecological water usage, and urban development [1,2]. China's large-scale exploitation of groundwater resources has had a positive impact on agricultural food security and social stability; however, this has also led to land subsidence, seawater intrusion, and ecological deterioration [3,4]. Southern China faces flood control and drainage issues due to the high volume of water [5]; to address these problems, the Chinese government implemented groundwater management laws [6] and has undertaken large-scale projects like the South-to-North Water Transfer Project [7].…”

Section: Introductionmentioning

confidence: 99%

Surface Water–Groundwater Transformation Patterns in the Jianghan Plain after the Impoundment of the Three Gorges Project and the Opening of the Yangtze-to-Hanjiang Water Transfer Project

Feng

Shao

et al. 2023

Water

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Understanding the law of surface water–groundwater conversion in the face of high-intensity human activities is still a challenge. In this study, we employed statistical and system dynamics methods to investigate the surface water–groundwater conversion law in the Jianghan Plain following the impoundment of the Three Gorges Project (TGP) and the Yangtze-to-Hanjiang Water Transfer Project (YHWTP). The groundwater level’s long data set was used for the first time to study the water level change and water exchange in the research region after the impoundment of the TGP and the delivery of water from the YHWTP. The findings suggest a significant decrease in the interannual trend of the surface water level and groundwater level in the research region. It was observed that a 1m rise in the surface water level can lead to a 0.11–0.38 m rise in the groundwater level. The water level fluctuation coefficients of the surface water level and groundwater level are influenced by the impoundment of the TGP and the water delivery from the YHWTP, causing them to increase and decrease, respectively. In general, the surface water recharges the groundwater in the studied region. The water exchanges between the surface water and groundwater in the Yangtze River’s main stream, the middle region of the Hanjiang Plain, and the lower reaches of the Hanjiang River are, on average, 10−2 m3/(d·m), 10−5 m3/(d·m), and 10−3 m3/(d·m) orders of magnitude, respectively. The water exchange in the Yangtze River’s main stream was reduced after TGP impoundment, and it was enhanced following YHWTP water delivery.

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Section: Introductionmentioning

confidence: 99%

Surface Water–Groundwater Transformation Patterns in the Jianghan Plain after the Impoundment of the Three Gorges Project and the Opening of the Yangtze-to-Hanjiang Water Transfer Project

Feng

Shao

et al. 2023

Water

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Experimental study on soil deformation caused by overexploitation of groundwater

Sun,

Wang,

Wang

et al. 2024

Water Environment Research

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Due to the overexploitation of deep groundwater, the largest cone of depression in the world has formed in the North China Plain. This led to severe geological hazards, including land subsidence and ground fissures, and also caused economic losses. The prevention and treatment of subsidence needs to rely on the accurate prediction of subsidence amount. According to the one‐dimensional consolidation theory and effective stress principle, combined with stratum structure, groundwater flow, stress distribution, and so forth, the high‐pressure consolidation test results of 569.6 m deep borehole soil samples are adopted; with a specific focus on stress and deformation parameters under exploitation of groundwater condition, the soil‐water coupling prediction model of groundwater level lowering depth and land subsidence has been established. Verification with measured subsidence data near the study sites demonstrated that the predicted curve is consistent with the measured one and the differences between them are acceptable. The model can be applied in different areas after making adjustment based on different regional stratigraphic structures. Its key advantage lies in the ability to provide land subsidence prediction for areas lacking monitoring data, making it highly valuable for widespread application.Practitioner Points There is a compressible stratum structure; it is the internal factors of land subsidence. The groundwater level decline causes the soil body stress to change. It is land subsidence of the external factors. Based on the one‐dimensional consolidation theory and by combining stratigraphic structures, groundwater flow, and stress distribution, a ground settlement prediction model was established.

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