2002-2023年黄淮海平原地下水储量变化及其与水文气象因子的关系

IF 4.7 2区地球科学 Q1 WATER RESOURCES

Journal of Hydrology-Regional Studies Pub Date : 2025-06-24 DOI:10.1016/j.ejrh.2025.102540

Fengmin Hu , Bingjie Liang , Gao Yang , Zhong Lu , Zhanshi Li , Yu Fu

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引用次数: 0

摘要

研究区域：黄淮海平原。利用GRACE、GLDAS和黄淮海平原区地下水储量异常（GWSA）的年际、季节和空间变化特征，以及水文气象因素的影响，分析了2002 - 2023年黄淮海平原区地下水储量异常（GWSA）的变化特征。生长缓慢（0.93 mm/a），下降（-15.69 mm/a），恢复（22.81 mm/a）。Pearson相关表明，西北地区gwsa观测的地下水深度数据关系较强。偏相关分析表明，蒸散发和地表径流与GWSA呈负相关，而降水和温度呈正相关。基于随机森林的特征重要性表明，2002年4月~ 2023年9月，温度对GWSA变化的影响略大于其他因子，其次是降水、蒸散发和地表径流。

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Evaluation of groundwater storage variability and relationship with hydrometeorological factors in the Huang-Huai-Hai Plain, China, using GRACE and GLDAS Data (2002–2023)

Study region

Huang-Huai-Hai plain, China.

Study focus

In this study, we analyzed groundwater storage anomalies (GWSA) in Huang-Huai-Hai plain from 2002 to 2023 using Gravity Recovery and Climate Experiment (GRACE), Global Land Data Assimilation System (GLDAS), and observed groundwater depth data, focusing on interannual, seasonal, and spatial variations, and the impact of hydrometeorological factors

New hydrological insights for the regions

The seasonal Mann-Kendall test and change point detection identified three GWSA phases: slow growth (0.93 mm/a), decline (-15.69 mm/a), and recovery (22.81 mm/a). Pearson correlation showed stronger GWSA-observed groundwater depth data relationships in the northwest. Partial correlation analysis indicated that evapotranspiration and surface runoff negatively correlated with GWSA, while precipitation and temperature positively correlated. The feature importance based on the random forest revealed that, between April 2002 and September 2023, temperature had a slightly greater influence on GWSA variations than other factors, followed by precipitation, evapotranspiration, and surface runoff.

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来源期刊

Journal of Hydrology-Regional Studies Earth and Planetary Sciences-Earth and Planetary Sciences (miscellaneous)

CiteScore

6.70

自引率

8.50%

发文量

284

审稿时长

60 days

期刊介绍： Journal of Hydrology: Regional Studies publishes original research papers enhancing the science of hydrology and aiming at region-specific problems, past and future conditions, analysis, review and solutions. The journal particularly welcomes research papers that deliver new insights into region-specific hydrological processes and responses to changing conditions, as well as contributions that incorporate interdisciplinarity and translational science.