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Updated: Aug 6, 2026

In Situ Soil Moisture Sensors in Undisturbed Soils
Published on: November 18, 2022
Ecological quality carbon storage coupling via an enhanced water retention integrated remote sensing index
Xiaotang Xia1, Yulin Xu1, Jian Chen2
1School of Urban Construction Engineering, Wuhan University of Science and Technology, Wuhan 430065, China.
Abstract:
This study proposes an enhanced remote sensing ecological index (ERSEI) incorporating water-retention dynamics to quantify spatiotemporal variations in ecological quality and carbon storage in Yichang city (2003-2023). Utilizing principal-component analysis (PCA) and GeoDetector, we evaluated ERSEI trajectories and underlying mechanisms. Results reveal that mean ERSEI increased by approximately 12.5%, exhibiting pronounced spatial heterogeneity (higher in western mountainous zones, lower in eastern plains). Driver analysis demonstrated a temporal shift from topography- and vegetation-dominated controls to intensified socioeconomic and climatic influences (notably gross domestic product [GDP] and temperature) post-2013, characterized by nonlinear synergistic interactions. Furthermore, bivariate spatial autocorrelation confirmed a significant coupling between ERSEI and InVEST-estimated carbon storage; regions with improving ecological quality achieved a net carbon increment of approximately 2.11 t hm-2. These findings informed a three-axis zoning framework (regional, western barrier, and eastern industrial cluster), providing a transferable paradigm for restoration prioritization in hydrologically complex river basins.
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