Risk assessment and configuration of water and land resources system network in the Huang-Huai-Hai watershed

作者：Tianling Qin, Jianming Feng, Chenhao Li, Xin Zhang, Denghua Yan, Shanshan Liu, Jianwei Wang, Xizhi Lv, Sintayehu A. Abebe · 发表于：Ecological Indicators · 年份：2023 · DOI：10.1016/j.ecolind.2023.110712 · 被引用次数：14 · 研究领域：Water-Energy-Food Nexus Studies、Water resources management and optimization、Transboundary Water Resource Management

Under the influence of global warming and human activities, the risk sources of land and water resources system networks are complex and uncertain, which has induced a series of ecological and environmental problems. It is of great significance to systematically identify and evaluate the risks of water and land resources system networks from the perspective of water resource attributes and land resource attributes. Therefore, based on the mutual feedback mechanism of water and land resources, this study constructs the water and land resources system network in the Huang-Huai-Hai Watershed. The cluster analysis-ISODATA algorithm and entropy weight-TOPSIS evaluation method were used to evaluate and predict the risk of the water and land resources system network in the Huang-Huai-Hai Watershed. In addition, a model for the optimal allocation of water and land resources for risk mitigation was constructed, and the optimal allocation scheme of water and land resources in the Huang-Huai-Hai Watershed in 2030, 2035 and 2060 under different scenario modes was obtained. The results show that the risk of the water and land resources system network in the Huang-Huai-Hai Watershed from 1990 to 2020 first increased and then decreased, and the proportion of areas above medium–high risk in 2001–2010 was 53.17%. Compared with 2020, the area above medium–high risk in 2030, 2035 and 2060 increased by 1.4–17.38%, 6.78–15.92% and 2.39–6.82%, respectively. After the optimal allocation of water an...