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A framework of ecological sensitivity assessment for the groundwater system in the Mi River basin, Eastern China

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Abstract

As a critical natural resource, groundwater plays an important role in the stability of the geological environment and the balance of the ecosystem. The purpose of this study was to delineate the ecological sensitivity of the groundwater system in the Mi River basin of Eastern China and to provide a basis for future decision-makers to regulate groundwater. First, based on the available information and the specific situation of the study area, the evaluation index system of groundwater ecological sensitivity was constructed by selecting the influencing factors from four levels: groundwater system structure, natural environment, water resources, and social development. Then, the weights were assigned by the analytical hierarchy process (AHP) and entropy method, and the ecological sensitivity of the groundwater system was assessed by a geographical information system (GIS). The results showed that the ecologically moderately sensitive areas of the groundwater system were mainly distributed in the plain areas of Linqu and Qingzhou and the Shouguang area, accounting for 20.67% of the total area of the basin. The highly sensitive and extremely sensitive areas were distributed in the middle and lower reaches of the basin, accounting for 43.97% of the basin area. The insensitive and mildly sensitive areas were mainly located in the upstream areas of the watershed, accounting for 35.36% of the basin area. The results provide a basis for environmental protection in the Mi River basin and a reference for the protection and rational utilization of groundwater in the study area.

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The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Acknowledgements

We are very grateful to the anonymous reviewers and editors for their valuable comments and suggestions on this paper, which helped improve the paper.

Funding

This study was supported by the Fund of Major Subject of University of Jinan (Research on the Coordinated and Efficient Utilization Technology of Water Resources in Mi River basin under the Background of High Quality Development), Young Scientists Fund of the National Natural Science Foundation of China (No. 51909105), and the Open Research Fund of Henan Key Laboratory of Water Resources Conservation and Intensive Utilization in the Yellow River Basin (No. HAKF202105).

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YL and YG wrote the main manuscript texts. YF conducted data analysis. ZX and QL provided many important advices on the manuscript. HW was responsible for the supervision and review. All authors have read and agreed to the published version of the manuscript.

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Correspondence to Yixiong Gao or Hai Wang.

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The authors have not disclosed any competing interests.

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Liu, Y., Gao, Y., Fu, Y. et al. A framework of ecological sensitivity assessment for the groundwater system in the Mi River basin, Eastern China. Environ Earth Sci 82, 334 (2023). https://doi.org/10.1007/s12665-023-11018-7

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  • DOI: https://doi.org/10.1007/s12665-023-11018-7

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