南京林业大学学报（自然科学版）2024，Vol.48Issue(2)：199-208,10.DOI:10.12302/j.issn.1000-2006.202204070
基于生态环境质量评价的酒泉市生态空间网络优化
The optimization of ecological spatial network in Jiuquan City based on the evaluation of ecological environment quality
摘要
Abstract
[Objective]The objective of this study is to construct and optimize the ecological spatial network in Jiuquan City,aiming to enhance the quality of the ecological environment,harness regional ecological functions,and prevent desert expansion.[Method]By integrating remote sensing ecological index(RSEI)with the ecological spatial network,this study assessed the spatial pattern of landscape in Jiuquan City.By using complex network theory,the study identified weak ecological source areas and proposed optimization strategies.[Result](1)The RSEI exhibited a spatial pattern in the Jiuquan City,with low values in the northern region and high values in the central and southern regions.(2)The potential ecological spatial network in Jiuquan City comprised 332 ecological nodes and 656 ecological corridors.Through the simulation of additional edges based on the region with the lowest RSEI,242 edges were added,resulting in the inclusion of nine ecological stepping stones.(3)After the addition of edges,there was a noticeable improvement in the robustness of network nodes and connections,while the improvement in edge robustness was slight and not significant.[Conclusion]The optimization strategies of adding edges and stepping stones to weak ecological areas can enhance the stability and ecological restoration capacity of the ecological spatial network in Jiuquan City.The construction of new ecological corridors to enhance connectivity between source areas would facilitate regional ecological benefits and provide strategies for future ecological engineering projects in Jiuquan City.关键词
遥感生态指数(RSEI)/生态质量评价/生态空间网络/增边优化/鲁棒性Key words
remote sensing ecological index(RSEI)/ecological quality evaluation/ecological spatial network/edge-increasing optimization/robustness分类
资源环境引用本文复制引用
仇实,于强,刘泓君,王慧媛,李松,岳德鹏..基于生态环境质量评价的酒泉市生态空间网络优化[J].南京林业大学学报（自然科学版）,2024,48(2):199-208,10.基金项目
国家自然科学青年基金项目(42001211). （42001211）
