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Long-term groundwater storage changes and land subsidence development in the North China Plain (1971-2015)

机译：华北平原的长期地下水储存变化和土地沉降开发（1971-2015）

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摘要

The North China Plain (NCP) has been suffering from groundwater storage (GWS) depletion and land subsidence for a long period. This paper collects data on GWS changes and land subsidence from in situ groundwater-level measurements, literature, and satellite observations to provide an overview of the evolution of the aquifer system during 1971-2015 with a focus on the sub-regional variations. It is found that the GWS showed a prolonged declining rate of -17.8 +/- 0.1 mm/yr during 1971-2015, with a negative correlation to groundwater abstraction before year similar to 2000 and a positive correlation after similar to 2000. Statistical correlations between subsidence rate and the GWS anomaly (GWSA), groundwater abstraction, and annual precipitation show that the land subsidence in three sub-regions (Beijing, Tianjin, and Hebei) represents different temporal variations due to varying driver factors. Continuous drought caused intensive GWS depletion (-76.1 +/- 6.5 mm/yr) and land subsidence in Beijing during 1999-2012. Negative correlations between total groundwater abstraction and land subsidence exhibited after the 1980s indicate that it may be questionable to infer subsidence from regional abstraction data. Instead, the GWSA generally provides a reliable correlation with subsidence. This study highlights the spatio-temporal variabilities of GWS depletion and land subsidence in the NCP under natural and anthropogenic impacts, and the importance of GWS changes for understanding land subsidence development.
机译：华北平原（NCP）一直遭受地下水储存（GWS）耗尽和土地沉降。本文收集了GWS变化和土地沉降的数据，从原位地下水位测量，文学和卫星观察概述，概述了1971 - 2015年期间含水层系统的演变，重点是次区域变异。发现GWS在1971 - 2015年期间延长了-17.8 +/- 0.1mm /毫米的延长率，与2000年类似与地下水抽象的负相关性和类似于2000年的正相关性。之间的统计相关性沉降率和GWS异常（GWSA），地下水抽象和年降水量表明，三个子地区的土地沉降（北京，天津和河北）由于不同的驾驶员因素而代表不同的时间变化。在1999 - 2012年期间，持续干旱导致北京的密集GWS耗尽（-76.1 +/- 6.5毫米/毫米/毫秒）和土地沉降。 20世纪80年代之后展出的总地下水抽象和土地沉降之间的负相关表明，可能是从区域抽象数据推断出来的。相反，GWSA通常提供与沉降的可靠相关性。本研究突出了NCP在天然和人为的影响下GWS耗尽和地面沉降的时空变量，以及GWS对理解土地沉降开发的重要性。

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  • 来源
    《Hydrogeology journal》 |2018年第5期|共11页
  • 作者

    Gong Huili; Pan Yun; Zheng Longqun; Li Xiaojuan; Zhu Lin; Zhang Chong; Huang Zhiyong; Li Zhiping; Wang Haigang; Zhou Chaofan;

  • 作者单位

    Capital Normal Univ Beijing Lab Water Resources Secur Beijing 100048 Peoples R China;

    Capital Normal Univ Beijing Lab Water Resources Secur Beijing 100048 Peoples R China;

    Capital Normal Univ Beijing Lab Water Resources Secur Beijing 100048 Peoples R China;

    Capital Normal Univ Beijing Lab Water Resources Secur Beijing 100048 Peoples R China;

    Capital Normal Univ Beijing Lab Water Resources Secur Beijing 100048 Peoples R China;

    Beijing Normal Univ Fac Geog Sci State Key Lab Earth Surface Proc &

    Resource Ecol Beijing 100875 Peoples R China;

    Univ Hong Kong Dept Earth Sci Hong Kong Hong Kong Peoples R China;

    Beijing Inst Hydrogeol &

    Engn Geol Beijing 100048 Peoples R China;

    China Geol &

    Environm Monitoring Inst Beijing 100081 Peoples R China;

    Capital Normal Univ Beijing Lab Water Resources Secur Beijing 100048 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 水文地质学（地下水水文学）;
  • 关键词

    Over-abstraction; Subsidence; Drought; GRACE; China;

    机译：过度抽象;沉降;干旱;恩典;中国;

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