华北水利水电大学学报（自然科学版）2025，Vol.46Issue(2)：47-55,9.DOI:10.19760/j.ncwu.zk.2025022
南水北调工程河南省受水区生态安全评价
Ecological Security Assessment of Water-receiving Areas in Henan Province under the South-to-North Water Diversion Project
摘要
Abstract
This study evaluates the ecological impacts of the Middle Route of the South-to-North Water Diversion Project(SNWDP-MR)by analyzing eight cities in Henan Province traversed by the project.Adopting the Pressure-State-Response(PSR)model,entropy weight method,and standard deviation ellipse analysis,we investigated the spatiotemporal evolution of ecological security in 2010,2015,and 2020.Key findings include:①The composite ecological security index increased sig-nificantly from 0.37 to 0.56 during 2010-2020,indicating sustained improvement in regional ecological conditions.②Spatial heterogeneity persists despite overall progress,manifesting a pattern of ″higher security in northern/southern zones versus low-er central areas,with localized variations″.③Dominant influencing factors differ regionally:industrial solid waste utilization rate and energy consumption per GDP unit exhibit stronger impacts than grain yield per hectare.④The spatial distribution demonstrates a consolidated northeast-southwest orientation post-project implementation,with gradually converging coverage.These results provide empirical evidence for optimizing water diversion projects′ ecological management strategies.关键词
生态安全/PSR模型/标准差椭圆/生态环境/南水北调中线工程河南段Key words
ecological security/PSR model/standard deviation ellipse/South-to-North Water Diversion Project/Henan Province分类
环境科学引用本文复制引用
郭辉,吴思远,夏帆..南水北调工程河南省受水区生态安全评价[J].华北水利水电大学学报（自然科学版）,2025,46(2):47-55,9.基金项目
国家自然科学基金项目(42201017). （42201017）
