四川洪雅县森林破碎化分析及生态空间格局优化--基于MSPA与MCR模型分析  

Forest Fragmentation and Ecological Spatial Pattern Optimization in Hongya County,Sichuan Province:Based on MSPA and MCR Modelling

作　　者：雷雪 沈一[1] 王倩娜 邓靖琳 高黄根 Lei Xue;Shen Yi;Wang Qianna;Deng Jinglin;Gao Huanggen(College of Architecture and Environment,Sichuan University,Chengdu 610065,China;Sichuan Territorial&Spatial Planning Institute,Chengdu 610081,China)

机构地区：[1]四川大学建筑与环境学院,成都610065 [2]四川省国土空间规划研究院,成都610081

出　　处：《中国城市林业》2023年第3期36-42,共7页Journal of Chinese Urban Forestry

基　　金：国家自然科学基金青年基金(31500581);四川大学横向科技项目(19H0949)。

摘　　要：文章运用MSPA与MCR模型,对2005—2018年洪雅县森林破碎化情况进行量化分析,构建森林生态空间格局并提出优化策略。结果表明:2005—2018年洪雅县森林破碎化程度增强,且中北部地区森林破碎化情况最为显著,森林完整性指标总体下降465%,破碎度和连通性指标总体上升分别为264%和303%,基于MSPA模型提取出2个森林孤岛修复区、10个森林核心修复区,通过MCR模型生成33条森林潜在廊道,并划定森林核心区、森林管控区、森林过渡区以及可建设区4个森林用地管控区域。最后提出“整体修复-组团管控-优化布局-限制扩张”4类森林生态空间格局优化策略,为洪雅县森林保护与可持续规划提供思路。The paper uses MSPA and MCR models to quantitatively analyze the forest fragmentation in Hongya County from 2005 to 2018,and constructs the forest ecological spatial pattern,for which the optimization strategies are proposed.The results show that the forest fragmentation increased in Hongya County from 2005 to 2018,especially in the central and northern regions.The forest integrity index decreased by 4.65%,and the indexes of fragmentation and connectivity increase by 2.64%and 3.03%,respectively.Based on the MSPA model,2 isolated forest restoration areas and 10 core forest restoration areas are extracted,and through the MCR model,33 potential forest corridors are created,and four forest land management areas are defined,including core forest area,forest management area,forest transition area and construction area.At the end,a strategy of“holistic restoration-grouped management-optimal layout-limited expansion”is proposed to optimize the forest ecological spatial pattern in order to provide ideas for the conservation and sustainable planning of forests in Hongya County.

关 键 词：形态学空间分析法 最小累积阻力模型 森林破碎化 生态空间格局优化 四川洪雅县 

分 类 号：S718.5[农业科学—林学]