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首页> 外文期刊>Journal of Hydrology >Sub-regional groundwater storage recovery in North China Plain after the South-to-North water diversion project
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Sub-regional groundwater storage recovery in North China Plain after the South-to-North water diversion project

机译：南北地区北方地区北方地区地区地区地下水储存恢复

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摘要

The South-to-North water diversion Middle Route Project (MRP) is expected to alleviate the long-term groundwater storage (GWS) depletion in North China Plain (NCP) after the beginning of its operation in December 2014. This study aims to investigate the effect of MRP on GWS by comparing GWS changes before (2003-2014) and after (2015-2018) the MRP operation. The analysis was conducted by using groundwater level data from 617 wells in NCP, and then evaluated against satellite-based water storage data from Gravity Recovery and Climate Experiment (GRACE) and its Follow-On missions. On average in NCP, a decreasing trend of -19.1 +/- 5.1 mm/yr was seen in GWS based on well observations during 2003-2014, but a recovery trend of +1.8 +/- 0.7 mm/yr was found during 2015-2018. The GWS recovery was most prominent in subregions where groundwater over-utilization had occurred in NCP. GRACE exhibited the capacity to detect the regional GWS depletion during 2003-2014, but difficult to distinguish the sub-regional GWS recovery during 2015-2018. The potential causes for GWS recovery were found to be complicated, not only caused by the reduction of groundwater pumping as accelerated by MRP-diverted water, but also the increasing precipitation recharge of aquifers and the enhanced management of groundwater system. The findings highlight that GWS in NCP has started a gradual transition from unsustainable depletion to sub-regional recovery as benefit from the MRP water diversion.
机译：南水北调中线工程（MRP）预计将在2014年12月开始运行后，缓解华北平原（NCP）的长期地下水储量（GWS）枯竭。本研究旨在通过比较MRP运行之前（2003-2014年）和之后（2015-2018年）的GWS变化，研究MRP对GWS的影响。利用NCP 617口井的地下水位数据进行分析，然后根据重力恢复和气候试验（GRACE）及其后续任务的卫星储水数据进行评估。根据2003-2014年期间的油井观测，平均而言，在NCP中，GWS的下降趋势为-19.1+/-5.1 mm/年，但在2015-2018年期间，发现恢复趋势为+1.8+/-0.7 mm/年。在NCP地下水过度利用的次区域，GWS恢复最为显著。GRACE在2003-2014年期间展示了检测区域GWS损耗的能力，但在2015-2018年期间难以区分次区域GWS恢复。研究发现，GWS恢复的潜在原因很复杂，不仅是因为MRP引水加速了地下水泵送量的减少，还因为含水层降水补给量的增加和地下水系统管理的加强。研究结果突出表明，由于MRP引水的好处，NCP中的GWS已开始从不可持续的消耗逐渐过渡到次区域恢复。

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  • 来源
    《Journal of Hydrology》 |2021年第1期|共10页
  • 作者

    Zhang Chong; Duan Qingyun; Yeh Pat J-F; Pan Yun; Gong Huili; Moradkhani Hamid; Gong Wei; Lei Xiaohui; Liao Weihong; Xu Lei; Huang Zhiyong; Zheng Longqun; Guo Xueru;

  • 作者单位

    Beijing Normal Univ Inst Land Surface Syst &

    Sustainable Dev Beijing Peoples R China;

    Hohai Univ State Key Lab Hydrol Water Resources &

    Hydraul En Nanjing Peoples R China;

    Monash Univ Discipline Civil Engn Sch Engn Malaysia Campus Subang Jaya Malaysia;

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

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

    Univ Alabama Ctr Complex Hydrosyst Res Tuscaloosa AL USA;

    Beijing Normal Univ Inst Land Surface Syst &

    Sustainable Dev Beijing Peoples R China;

    China Inst Water Resources &

    Hydropower Res Sate Key Lab Stimulat &

    Regulat Water Cycle River Beijing Peoples R China;

    China Inst Water Resources &

    Hydropower Res Sate Key Lab Stimulat &

    Regulat Water Cycle River Beijing Peoples R China;

    Wuhan Univ State Key Lab Informat Engn Surveying Mapping &

    R Wuhan Peoples R China;

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

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

    Beijing Normal Univ Dept Stat Beijing Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 水文科学（水界物理学）;
  • 关键词

    Groundwater recovery; Groundwater depletion; GRACE; South-to-North water diversion; North China Plain;

    机译：地下水恢复;地下水耗尽;恩典;南北面进水;华北平原;

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