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Groundwater anomaly variation and its response to environment change in an inland river basin, China

Chen, Zexia, Liu, Wei, Feng, Qi, Yin, Zhenliang, Zhu, Meng, Xue, Yuanyuan, Wang, Lingge, Fang, Chunshuang, and Zhu, Rui, 2025. Groundwater anomaly variation and its response to environment change in an inland river basin, China. Journal of Hydrology, 661:133812, doi:10.1016/j.jhydrol.2025.133812.

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@ARTICLE{2025JHyd..66133812C,
       author = {{Chen}, Zexia and {Liu}, Wei and {Feng}, Qi and {Yin}, Zhenliang and {Zhu}, Meng and {Xue}, Yuanyuan and {Wang}, Lingge and {Fang}, Chunshuang and {Zhu}, Rui},
        title = "{Groundwater anomaly variation and its response to environment change in an inland river basin, China}",
      journal = {Journal of Hydrology},
     keywords = {GWSA characteristics, Environment change, Response relationship},
         year = 2025,
        month = nov,
       volume = {661},
          eid = {133812},
        pages = {133812},
     abstract = "{Inland river basins have plunged into water shortage with growing social
        development, as an important component of water resources,
        groundwater provides a large water supply for inland river
        basins. However, current understanding of groundwater dynamics
        and corresponding response to environment remains deficient
        owing to insufficient data, which needs to be further explored.
        To address this, we assessed groundwater storage anomaly (GWSA)
        through GRACE-based records over a typical inland river basin,
        Shiyang river basin, and analysis relevant response
        characteristics to environment. Annual GWSA peaked in 2004 and
        followed by sharply decline until 2010. Although a minor rebound
        occurred afterward, but overall trend of GWSA remained downward.
        Spatially, approximately 85 \% of basin experienced a
        significant decline over ‑0.65 mm/year. In intra-annual scale,
        monthly GWSA show a double-peaked pattern in mountainous area
        while a single-peaked pattern in rest area. From 2002 to 2020,
        precipitation, temperature, evapotranspiration, vegetation and
        soil moisture show increasing trends. The largest landuse area
        change are cropland and unused land, cropland area was mainly
        converted from unused land and low-coverage grassland.
        Meanwhile, water and city land have increased significantly, by
        21.41 \% and 50.59 \%, respectively, with the major
        transformation from unused land and cropland in oasis and desert
        area. Wavelet analysis reveals GWSA responds slower to
        temperature (0.97{\textendash}1.86 months) and
        evapotranspiration (0.60{\textendash}1.96 months) but faster to
        soil moisture (0.23{\textendash}1.19 months). The SEM analysis
        indicates that GWSA was positively influenced by both
        precipitation and soil moisture in oasis and desert areas
        (>0.65), while those in mountainous area was mainly positively
        influenced by precipitation (0.38). Evapotranspiration and
        temperature contribute negative impacts on GWSA, with the lower
        the elevation, the greater the negative impact. These findings
        deepen understanding of regional groundwater dynamics and
        provide valuable insights for government groundwater resource
        management and sustainable development strategies for inland
        river basin.}",
          doi = {10.1016/j.jhydrol.2025.133812},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2025JHyd..66133812C},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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