基于MSPA与MCR模型的国土空间生态修复关键区域识别——以祁阳市为例  

Identification of Key Regions for National Spatial Ecological Restoration Based on MSPA and MCR Models:A Study Case of Qiyang City

作　　者：李镇南 熊苗 郭舒婷 曹晖 周亚龙 陈勋 Li Zhennan;Xiong Miao;Guo Shuting;Cao Hui;Zhou Yalong;Chen Xun(Geological Survey Institute of Hunan Province,Changsha Hunan 410004;Engineering and Mine Geological Survey and Monitor Institute of Hunan Province,Changsha Hunan 410007)

机构地区：[1]湖南省地质调查所,湖南长沙410004 [2]湖南省工程地质矿山地质调查监测所,湖南长沙410007

出　　处：《国土资源导刊》2025年第1期46-54,共9页Land & Resources Herald

基　　金：湖南省地质院科技计划项目(编号:HNGSTP202438)。

摘　　要：为识别祁阳市国土空间生态修复关键区域,运用MSPA模型和景观连通性评价识别生态源地,采用MCR模型、电路理论提取生态廊道,识别生态夹点、生态障碍点,从而确定国土空间生态修复关键区域。结果表明:(1)识别祁阳市生态源地11处,面积86378.93 hm^(2),生态廊道9条,总长度212.12 km,市域西北部的生态源地与周边源地连接通道可行路径较多,其他源地之间的联系通道则较为脆弱。(2)运用Linkage Mapper分析,识别出生态夹点9处,面积517.59 hm^(2);生态障碍点16处,总面积453.29 hm^(2)。(3)针对祁阳市不同类型的生态修复关键区域,提出不同类型的生态保护与修复策略。研究可为国土空间生态修复的规划编制与实施修复工程提供空间指引。To identify key areas for territorial spatial ecological restoration in Qiyang city,the MSPA model and landscape connectivity evaluation were utilized to identify ecological source areas.The MCR model and circuit theory were employed to extract ecological corridors,identify ecological pinch points,and ecological barrier points,thereby determining key areas for territorial spatial ecological restoration.The results showed that:1)11 ecological source areas were identified in Qiyang city,covering an area of 86378.93 hm^(2),and 9 ecological corridors with a total length of 212.12 km were identified.There are multiple feasible pathways for connecting the ecological source areas in the northwest of the city with surrounding source areas,while the connection pathways between other source areas are relatively fragile.2)Using Linkage Mapper analysis,9 ecological pinch points were identified,covering an area of 517.59 hm^(2),and 16 ecological barrier points were identified,covering a total area of 453.29 hm^(2).3)Different types of ecological protection and restoration strategies were proposed for different types of key areas for ecological restoration in Qiyang City.This study can provide spatial guidance for the planning and implementation of territorial spatial ecological restoration projects.

关 键 词：生态修复 生态源地 生态廊道 MSPA模型 MCR模型 

分 类 号：X171.4[环境科学与工程—环境科学]