基于MSPA和电路理论的松嫩平原生态空间结构构建与优化

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关键词形态学空间格局分析法（MSPA）；InVEST模型；电路理论；生态空间结构中图分类号 X321 文献标志码A 文章编号 1007-7731（2026）07-0075-05DOI号 10.16377/j.cnki.issn1007-7731.2026.07.019

Construction and optimization of ecological spatial structure based on MSPA and circuit theoryinthe SongnenPlain

Li Xiang

（Harbin Normal University，Harbin150025，China）

AbstractThe Songnen Plain was selectedas the study area.Ecological sources were extracted using morphological spatial pattrn analysis （MSPA）. Habitat quality was assessed using the Habitat Quality module in InVEST 3.14.0. A comprehensive resistancesurface wasconstructed based on habitatquality and other factors in the Songnen Plain. Ecologicalcorridors，ecological pinch points，barrier points，andbreaking points were systematically identifiedusing circuit theory，andanoptimizedecological security patern was establishedby integrating multiple elements.Theresults showed that a total of 65 ecological sources with a total area of 2 1 369.43km2 and 133 ecological corridors with a total lengthof6788.23km were identified inthestudyarea.Inadition，28ecologicalpinch points，31ecologicalbarier points，and9O breaking points were identified.Based onthe identification results，anoptimized ecological spatial structure of “three zones，four corridors，multiple nodes”was constructed. The study provides a reference for the construction and optimization of regional ecological spatial structure.

Keywordsmorphological spatial patern analysis （MSPA）; InVEST model; circuit theory;ecological' spatial structure

生态空间结构是指由关键源、源间廊道等景观要素所组成的对维护生态系统健康、促进生态环境稳定起着重要作用的空间格局。（剩余6673字）