干旱区地理2025，Vol.48Issue(11)：1939-1950,12.DOI:10.12118/j.issn.1000-6060.2024.753
2003-2022年黄河流域甘肃段水生态安全协同驱动机制研究
Synergistic driving mechanisms of water ecological security in the Gansu section of the Yellow River Basin from 2003 to 2022
摘要
Abstract
Water ecological security is essential for ensuring high-quality development and long-term stability within river basins.Clarifying the synergistic driving mechanisms of water ecological security is therefore critical for promoting sustainable development.This study constructs an evaluation index system for water ecological se-curity based on a composite ecosystem model integrating economy,society,resources,environment,and ecology.Using the entropy weight-fuzzy comprehensive evaluation method,the water ecological security of the Gansu sec-tion of the Yellow River Basin,China from 2003 to 2022 was assessed.Furthermore,the synergistic driving ef-fects were analyzed using coupling degree and coupling coordination degree models,and the primary influencing factors were identified through geodetector analysis.The main findings are as follows:(1)Indicators including the proportion of agricultural irrigation water use,reclaimed water reuse volume,inflow volume,proportion of water use for forestry,animal husbandry,and fishery,year-end storage capacity of large reservoirs,and runoff-to-pollution ratio accounted for 47.8%of the cumulative contribution rate,making them the dominant factors influ-encing water ecological security in the study area.(2)From 2003 to 2022,the average comprehensive evaluation index of water ecological security in the Gansu section was 0.34,indicating an overall moderate level.Spatial dis-parities were evident,with the Longyangxia-Lanzhou section performing relatively well,the upstream Long-yangxia section moderately,the Longmen-Sanmenxia section suboptimally,and the Lanzhou-Hekou Town sec-tion least favorably.The Lanzhou-Hekou Town section was identified as the key area requiring regulation,with the ecological subsystem being the primary limiting factor,reflecting the relatively weak ecological foundation of the basin.(3)From 2003 to 2022,the average coupling degree of water ecological security across the Gansu section was 0.986,suggesting strong mutual interactions among subsystems.The average coupling coordination degree was 0.581,indicating a basically coordinated state.(4)From 2003 to 2022,the degree of subsystem interaction in the upstream Longyangxia section was moderate,whereas other sections exhibited strong interactions.Nonethe-less,all subsystems across the study area remained in a state of mild disharmony.These findings provide scientif-ic evidence and practical guidance for advancing coordinated development and enhancing water ecological securi-ty in the Gansu section of the Yellow River Basin.关键词
复合生态系统/熵权-模糊综合评价法/水生态安全/黄河流域甘肃段/协同驱动Key words
complex ecosystem/entropy weight-fuzzy comprehensive evaluation method/water ecological secu-rity/Gansu section of the Yellow River Basin/collaborative driving引用本文复制引用
戴文渊,张清华,史权,张志超,张瑞萍,郑志祥,张芮..2003-2022年黄河流域甘肃段水生态安全协同驱动机制研究[J].干旱区地理,2025,48(11):1939-1950,12.基金项目
甘肃省科技重大专项(23ZDFA009) （23ZDFA009）
甘肃省高校教师创新基金项目(2025A-130) （2025A-130）
甘肃省科技厅软科学项目(23JRZA459) （23JRZA459）
甘肃省社科规划项目(2022YB088)资助 （2022YB088）
