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August 15, 2026WaterOpen Access

Multi-Year Variation Characteristics and Driving Forces of Groundwater Levels in the Yibin Area, Southern Sichuan, China

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Authors

XLXiaobo LvBLBin LiuJCJibin Chen

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Overview

Spatial-temporal analysis reveals declining groundwater levels linked to agricultural expansion and reduced precipitation, highlighting coupled climate and human impacts on aquifer stability.

Key Points

  • Clarify multi-year groundwater level variation characteristics and identify key hydrometeorological, geographic, and anthropogenic driving forces from 2019 to 2024.
  • Integrated 2019–2024 groundwater level monitoring records with hydrometeorological data and multi-source geospatial datasets across red-bed and carbonate rock aquifers.
  • Applied trend analysis, continuous wavelet transform, centroid migration modeling, Geodetector, and Fast Fourier Transform-based cross-correlation across 13 environmental and anthropogenic factors.
  • Groundwater levels exhibited dominant periodic oscillations of 50–64 months, displaying a shallow-northwest to deep-southeast spatial distribution shaped by regional lithology.
  • Red-bed regions experienced continuous, gradual groundwater level declines, whereas carbonate rock areas exhibited relative stability with slight downward trends.
  • Cropland area and precipitation demonstrated the highest individual explanatory power among 13 evaluated variables, interacting nonlinearly to drive overall groundwater depletion.

Cite This Study

Lv et al. (2026) studied this question.

synapsesocial.com/papers/6a8019a975c2e31742c85bc0https://doi.org/10.3390/w18161982
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