水科学进展2026，Vol.37Issue(3)：436-450,15.DOI:10.14042/j.cnki.32.1309.2026.03.004
基于复杂网络的黄河上游水-能-粮-生系统
Study on the Water-Energy-Food-Ecology system in the Upper Yellow River based on complex network analysis
摘要
Abstract
The upper reaches of the Yellow River serve as a crucial water conservation area and ecological barrier for the basin.The structural differences in the Water-Energy-Food-Ecology(WEFE)system and the mechanisms of key nodes directly influence the efficiency of regional resource allocation,as well as ecological protection and high-quality development in the basin.However,existing WEFE system studies predominantly focus on holistic evaluations,making it difficult to reveal internal structural differences and the mechanisms of key nodes.This study integrates complex network theory and Copula functions to identify key nodes through joint centrality,combined with betweenness centrality to characterize functional role differences among nodes.It quantitatively analyzes the interconnected patterns of the WEFE system in the Upper Yellow River from a structural perspective.The results show that the WEFE system in the Upper Yellow River exhibits significant spatial disparities.At a correlation threshold of 0.6,the network modularity index reaches 0.274,indicating high structural stability.The energy subsystem demonstrates the strongest internal connectivity(0.81),while food and ecosystem subsystems show relatively high coupling(0.55).In contrast,the correlation between energy and food systems is the weakest(0.25),reflecting insufficient coordination.The network structure identifies two major functional zones:the water-energy module and the food-ecosystem module.Key nodes in the water-energy module exhibit high joint centrality but low betweenness centrality,playing a core role in local resource regulation.Key nodes in the food-ecosystem module possess both high joint centrality and betweenness centrality,serving as critical bridges for cross-system resource flows.This study provides a scientific basis for the coordinated governance of multi-resource systems and high-quality development in the Upper Yellow River Basin.关键词
水-能-粮-生系统/复杂网络/联合中心性/黄河上游Key words
Water-Energy-Food-Ecology system/complex networks/joint centrality/the Upper Yellow River分类
建筑与水利引用本文复制引用
邓嘉祥,赵勇,权全,白钰,高国轩..基于复杂网络的黄河上游水-能-粮-生系统[J].水科学进展,2026,37(3):436-450,15.基金项目
国家自然科学科学基金项目(52025093) （52025093）
国家重点研发计划项目(2023YFC300650) *The study is financially supported by the National Natural Science Foundation of China(No.52025093)and the National Key R&D Program of China(No.2023YFC300650). （2023YFC300650）
