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当前位置: 首页 > 文章 > 基于MSPA与最小路径方法的袁州区生态网络构建与优化 农业现代化研究 2020,41 (2) 351-360
Position: Home > Articles > Construction and optimization of Ecological Network in Yuanzhou District Based on MSPA and the Least-Cost Path Method Research of Agricultural Modernization 2020,41 (2) 351-360

基于MSPA与最小路径方法的袁州区生态网络构建与优化

作  者：
齐松;罗志军;陈瑶瑶;赵杰;林晓霞
单  位：
江西农业大学国土资源与环境学院
关键词：
生态网络;MSPA;最小路径;景观连通性;生态廊道
摘  要：
快速城市化使生态斑块破碎化加剧,生态网络的构建能改善生态斑块间景观连通性,对保护生物多样性和维持生态服务功能具有重要意义。以江西省宜春市袁州区为例,运用形态学空间格局(MSPA)方法和景观连通性评价识别生态源地,并利用最小路径方法和GIS,考虑地形、景观类型和人类活动干扰的影响模拟生态廊道,然后利用重力模型判断生态廊道的重要性,最后运用水文分析,结合生态廊道交汇点确定生态节点,从而构建研究区生态网络,并有针对性地提出生态网络优化建议。结果表明:袁州区生态源地集中分布在南北区域,中部地区综合阻力高、景观连通性低;研究区生态廊道45条,其中重要廊道15条,主要分布在研究区北部,重要廊道1-2与4-5应优先进行保护;林地与耕地是生态廊道的主要组成部分。研究结果能为袁州区在未来用地空间上协调生态保护与城市发展提供科学合理的参考,对其他快速城市化地区生态网络构建也有一定的指导意义。
译  名：
Construction and optimization of Ecological Network in Yuanzhou District Based on MSPA and the Least-Cost Path Method
作  者：
QI Song;LUO Zhi-jun;CHEN Yao-yao;ZHAO Jie;LIN Xiao-xia;College of Land Resources and Environment, Jiangxi Agricultural University;Jiangxi Provincial Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology;Agricultural and country Bureau of Yuanzhou District;
关键词：
ecological network;;MSPA;;least-cost path method;;landscape connectivity;;ecological corridor
摘  要：
Rapid urbanization has exacerbated the fragmentation of ecological patches.The construction of ecological networks can improve the landscape connectivity between ecological patches,which is of great significance for protecting biodiversity and maintaining ecological service functions.Taking Yuanzhou District,Yichun City,Jiangxi Province as an example,the Morphological Spatial Pattern Analysis (MSPA) method and landscape connectivity assessment were used to identify ecological sources.Considering the impacts of terrain,landscape types and human disturbance,the ecological corridors was simulated by using Least-Cost Path Method and GIS.And then the importance of the ecological corridor was judged by the Gravity Model.Finally,combined with the intersection of the ecological corridor,the hydrological analysis was used to determine the ecological nodes,and ecological network was constructed in order to put forward targeted ecological network optimization suggestions.The results shows that:1) The ecological source areas are concentrated in the north and south regions of Yuanzhou District,while high comprehensive resistance and low landscape connectivity appeared in the central region.2) There are 45 ecological corridors in this area,of which 15 are important corridors.These important corridors are mainly distributed in the north regions,particularly No.1-2 and No.4-5 important corridors should be protected in priority.3) Forest and cultivated land are the main components of the ecological corridor.The research results can provide scientific and reasonable reference for Yuanzhou District to coordinate ecological protection and urban development on land use space in the future,and also have certain guiding significance for the construction of ecological networks in other rapidly urbanizing areas.

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