基于MSPA-MCR模型的河源市生态网络构建与优化  

Construction and Optimization of Ecological Network of Heyuan City Based on MSPA and MCR Model

作　　者：雷沙 李忠宝 肖琳 吴龙峰 陈思宇 魏龙[3] 殷祚云 LEI Sha;LI Zhongbao;XIAO Lin;WU Longfeng;CHEN Siyu;WEI Long;YIN Zuoyun(Zhongkai University of Agriculture and Engineering,Guangzhou,Guangdong 510225,China;Nonferrous Mine Geological Disaster Prevention Center of Guangdong Province,Guangzhou,Guangdong,510062,China;Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization/Guangdong Academy of Forestry,Guangzhou,Guangdong 510520,China)

机构地区：[1]仲恺农业工程学院,广东广州510225 [2]广东省有色矿山地质灾害防治中心,广东广州510062 [3]广东省森林培育与保护利用重点实验室/广东省林业科学研究院,广东广州510520

出　　处：《林业与环境科学》2023年第1期1-11,共11页Forestry and Environmental Science

基　　金：广东省林业科技创新平台项目(2021-KJXM-09)。

摘　　要：以河源市为研究范围,采用形态学空间分析(MSPA)和最小累积阻力模型(MCR)构建河源市生态网络并提出优化策略。结果表明:河源市现状17个生态源地较集中分布,主要分布在河源市西部、西北部和南部,东北部和东部出现生态源地盲区;整体的生态阻力呈现西北和东南部高于西南和东北部的一种趋势,生成136条潜在生态廊道以网状分布,且南北部生态廊道的分布明显比东西部和中部的生态廊道密集;识别出重要生态廊道78条、一般生态廊道58条与17个生态源地共同组成河源市生态网络,针对目前的东北部和东部生态源地和生态廊道空缺提出保护重要生态源地、保护和建设生态廊道和“踏脚石”建设三位一体的优化策略。Using Heyuan city as the research example,the ecological network of Heyuan city was constructed through methods of morphological spatial analysis(MSPA)and the minimum cumulative resistance model(MCR),as well as proposed optimization strategies.The results show that the current 17 ecological source areas in Heyuan city are relatively concentrated,mainly in the west,northwest,and south of Heyuan city,and there are blank areas of ecological source areas in the northeast and east;the overall ecological resistance is in the northwest and there is a trend that the southeast is higher than the southwest and northeast,and 136 potential ecological corridors are distributed in a network,and the distribution of the ecological corridors in the north and south is denser than that in the east and the middle;the 78 important ecological corridors,58 general ecological corridors,and 17 ecological source areas together build the current ecological network of Heyuan city.The optimization strategy of protecting important ecological sources,protecting and building ecological corridors and"stepping stones"is put forward.

关 键 词：MSPA MCR 生态廊道 生态网络 河源市 

分 类 号：S719[农业科学—林学]