南京林业大学学报（自然科学版）2024，Vol.48Issue(4)：261-270,10.DOI:10.12302/j.issn.1000-2006.202302013
松花江百里生态长廊生境网络构建研究
Research on the construction of ecological corridor habitat network in Songhua River
摘要
Abstract
[Objective]The hundred-mile ecological corridor of the Songhua River is a diverse environment with abundant biological resources.Studying the construction and classification of its habitat network is crucial for enhancing regional biodiversity and ecological stability.[Method]Using the Songhua River Ecological Corridor as a case study,we first identified regional habitat types and assessed habitat quality using the InVEST analysis.We then pinpointed habitat sources,habitat corridors,and habitat nodes based on habitat suitability analysis for focal species and circuit theory,forming a comprehensive habitat network.Lastly,we classified the importance levels of sources and corridors based on current density.[Result](1)The corridor features 23 habitat types;44.31%of the areas are classified as having high habitat quality.(2)The habitat network consists of 82 sources,147 corridors and 57 nodes.(3)Analysis of current density revealed seven primary habitat sources covering 484.82 km2,primarily in large nature reserves,and 14 first-class habitat corridors totaling 7 560 meters,mainly along the main stream of the Songhua River,though the corridors are relatively short.[Conclusion]The habitat conditions in the Songhua River ecological corridor are generally favorable.However,attention must be given to ecological threats posed by rapid urban development.Effective strategies include classifying and expanding habitat sources,managing and enhancing corridor connectivity,and restoring and adding habitat nodes.These measures will optimize the habitat network and facilitate biological migration,providing essential"Stepping stones."关键词
生境网络/生境质量/焦点物种/电路理论/松花江流域Key words
habitat network/habitat quality/focal species/circuit theory/Songhua River basin分类
土木建筑引用本文复制引用
赵志强,方昊,袁青,吴妍..松花江百里生态长廊生境网络构建研究[J].南京林业大学学报（自然科学版）,2024,48(4):261-270,10.基金项目
国家自然科学基金项目(52278056). （52278056）
