Risk Assessment of River Shoreline Development and Utilization Based on Improved Grey Fuzzy Judgment

YE Xiao-jing; FANG Guo-hua; LIAO Tao; LU Yang-yang

doi:10.11988/ckyyb.20220915

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Journal of Changjiang River Scientific Research Institute ›› 2023, Vol. 40 ›› Issue (12) : 7-14,22. DOI: 10.11988/ckyyb.20220915

River-Lake Protection and Regulation

Risk Assessment of River Shoreline Development and Utilization Based on Improved Grey Fuzzy Judgment

YE Xiao-jing¹, FANG Guo-hua¹, LIAO Tao², LU Yang-yang¹

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Abstract

The assessment of risks associated with the development and utilization of river shorelines is the prerequisite and foundation of adopting effective shoreline management and protection measures and conserving river health. A comprehensive risk assessment index system comprising four main aspects including water quality, ecology, society, and management has been developed. Analytic hierarchy-entropy weight is employed to determine index combinatorial weight. The grey cluster analysis and fuzzy comprehensive evaluation are improved and combined to establish a risk assessment model, with geostatistical analysis being utilized to establish risk spatial analysis model. A case study of the Nanjing section of the Yangtze River reveals a low overall risk level, despite some high risk levels at local shoreline segments mainly in the Jiangning, Qixia and Luhe districts. Risk changes are resulted from a combination of natural factors and human activities.

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river shoreline / risk assessment of development and utilization / fuzzy comprehensive evaluation / grey cluster analysis / spatial analysis

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YE Xiao-jing, FANG Guo-hua, LIAO Tao, LU Yang-yang. Risk Assessment of River Shoreline Development and Utilization Based on Improved Grey Fuzzy Judgment[J]. Journal of Changjiang River Scientific Research Institute. 2023, 40(12): 7-14,22 https://doi.org/10.11988/ckyyb.20220915

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