干旱区地理2025，Vol.48Issue(4)：586-598,13.DOI:10.12118/j.issn.1000-6060.2024.354
基于生态安全格局确定县域生物多样性保护的优先区域
Determining priority areas for county biodiversity conservation based on ecological security pattern:A case study of Burqin County
摘要
Abstract
Ecological security is fundamental to human well-being and long-term sustainability.However,the on-going degradation of biological habitats has intensified ecological challenges,highlighting the urgent need for ef-fective biodiversity conservation strategies.This study examines Burqin County in Xinjiang,China,to develop an ecological security framework by analyzing habitat quality dynamics and identifying priority conservation areas.Using the InVEST and PLUS models,we evaluated the spatiotemporal evolution of habitat quality from 2000 to 2030 and mapped ecological source areas.Circuit theory was applied to delineate ecological corridors,ecological pinch points,and key biodiversity conservation zones.Based on optimal corridor widths and conservation priori-ties,differentiated protection strategies were proposed.The key findings are as follows:(1)From 2000 to 2020,habitat quality in Burqin County remained at a moderate level,with an average habitat quality index of 0.4978.The trend initially showed a decline,followed by slight recovery,while projections indicate a continuous improve-ment in habitat quality from 2020 to 2030.(2)The study identified 1059.83 km2 of ecological source areas,684.26 km2 of construction source areas,69 ecological corridors,and 42 ecological pinch points.Resistance thresholds during source area expansion were used to partition the region into distinct ecological protection zones with prioritized conservation levels.These results were cross-validated with data from Xinjiang's significant eco-logical protection areas.(3)Zone-specific ecological corridor widths were determined by considering the spatial distribution of wildlife species,ensuring accurate delineation of their extents.关键词
生境质量/生态廊道/生态安全格局/生态保护区/差异化保护策略Key words
habitat quality/ecological corridors/ecological security pattern/ecological reserve/differentiated protection strategy引用本文复制引用
闫晓梅,王宏卫,罗魁,董康宁,郭瑞杰,郑旭东..基于生态安全格局确定县域生物多样性保护的优先区域[J].干旱区地理,2025,48(4):586-598,13.基金项目
第三次新疆综合科学考察项目(2021xjkk0902) （2021xjkk0902）
国家自然科学基金(地区科学基金)项目(42461036)资助 （地区科学基金）
