摘要
构建区域生态安全格局,识别生态修复关键区域,是在生态文明建设背景下,实施区域生态修复、维护区域生态安全、提高区域生态环境质量的重要举措。本文以典型的高原城市——昆明市为研究区,利用形态学空间格局分析和景观连通性识别生态源地,通过成本路径工具提取生态廊道,运用电路理论确定生态“夹点”、生态障碍点等生态修复关键区域。研究表明:(1)昆明市生态源地面积总计6721.78 km~2,占全市总面积的31.99%,主要土地利用类型为林地和水域。(2)共提取出91条生态廊道,其中重要廊道19条,重要生态廊道集中分布在昆明市的北部。(3)共识别生态“夹点”75处,面积66.06 km~2;生态障碍点4处,面积49.24 km~2;生态断裂点41处。研究可为昆明市国土空间生态修复关键区域识别和区域生态保护修护工作的开展提供参考。
Constructing a regional ecological security pattern and identifying key areas for ecological restoration were important measures to pursue regional ecological restoration,maintain regional ecological security,and improve the regional ecological environment quality under the context of ecological civilization construction.This paper,taking Kunming,a typical plateau city,as the study area,applied morphological spatial pattern analysis and landscape connectivity to identify ecological source areas,extracted the ecological corridors with the cost path as a tool,and identified the key areas for ecological restoration based on the circuit theory,such as ecological pinch points and ecological barrier points.The results were shown as follows:(1) The total area of ecological source areas in Kunming was 6 721.78 km~2,accounting for 31.99%of the total area of the city,with forest land and water bodies as its main land use types.(2) A total of 91 ecological corridors were extracted,including 19 important corridors,among which important ecological corridors were mainly distributed in the northern area of Kunming.(3) A total of 75 ecological pinch points with an area of 66.06 km~2,4 ecological barrier points covering an area of 49.24 km~2,and 41 ecological breakpoints had been identified.As a result,this study can provide a reference for the identification of key areas for ecological restoration in Kunming’s territorial space and the implementation of regional ecological protection and restoration work.
作者
刘凤莲
刘艳
LIU Feng-lian;LIU Yan(Institute of Land&Resources and Sustainable Development,Yunnan University of Finance and Economics,Kunming 650221,Yunnan,China)
出处
《国土资源科技管理》
2023年第3期17-30,共14页
Scientific and Technological Management of Land and Resources
基金
云南省教育厅科学研究基金项目(2021J0592)
云南财经大学引进人才项目(2022D13)。
关键词
生态安全格局
生态修复分区
形态学空间格局分析
电路理论
昆明市
ecological security pattern
ecological restoration areas
morphological spatial pattern analysis
circuit theory
Kunming
