基于最小阻力模型的西双版纳州生态安全格局构建与优化  

Construction and Optimization of the Ecological Security of Xishuangbanna Prefecture Based on the Minimum Resistance Model

作　　者：张家礼 王晨阳 刘嘉纬[2,3] ZHANG Jia-li;WANG Chen-yang;LIU Jia-wei(Dongguan City University,Dongguan Guangdong 523419,China;不详)

机构地区：[1]东莞城市学院,广东东莞523419 [2]西南林业大学,云南昆明650224 [3]云南师范大学,云南昆明650500

出　　处：《环境科学导刊》2024年第4期11-18,26,共9页Environmental Science Survey

基　　金：云南省教育厅科学研究基金项目(2021Y263)。

摘　　要：以西双版纳州为研究区,基于生态敏感性和热点来分析识别生态源地,通过MCR最小累积阻力模型提取生态廊道,在此基础上识别生态节点,构建起西双版纳州生态安全网络格局。研究结果表明:①西双版纳州重要生态源地共21个。②生态廊道有59条,生态廊道格局呈现西南密、东北疏的分布特征,构成了“四纵四横”的西双版纳生态廊道网络。③在生态廊道的基础上生成11个生态节点,生态源地、生态缓冲区及生态廊道共同构成了西双版纳州区域景观生态安全格局。④在当前构建的生态网络的基础上,进一步优化生态空间结构,提出“一环廊带四组团,五纵四横多节点”空间布局,提高网络的连接度。The ecological source was identified based on ecological sensitivity and hotpot in Xishuangbanna prefecture.The ecological corridors were extracted by minimum resistance model(MCR)to identify ecological node and to construct the ecological secure network of the prefecture.The results indicated that there were 21 ecological sources and 59 ecological corridors,which has frame a“four vertical and four horizontal”ecological network with a dense distribution in the southwest and a sparse distribution in the northeast.The ecological node and ecological sources and ecological buffer zones and ecological corridors altogether formed the zonal ecological secure frame.It was suggested to optimize the spatial structure.The spatial distribution of“One ring with four clusters,five vertical and five horizontal with multiple nodes”were proposed to improve the connectivity of the ecological network.

关 键 词：生态敏感性 MCR最小累积阻力模型 生态网络构建 西双版纳州 

分 类 号：X826[环境科学与工程—环境工程]