西南林业大学学报2025，Vol.45Issue(5)：110-120,11.DOI:10.11929/j.swfu.202401057
基于生态风险评价的昆明市多层次生态安全格局构建
Construction of Multi-level Ecological Security Pattern in Kunming Based on Ecological Risk Assessment
摘要
Abstract
The study utilized data on land use and coverage changes in the years 2000,2010,and 2020 to per-form an ecological risk assessment.The analysis involved the application of the MSPA model and the significant connectivity index(dPC)to pinpoint ecological origins.Seven resistance factors were selected,and through the MCR model,both overall ecological corridors and those specifically within natural reserves were delineated.The results show that during 2000 to 2020,there was a notable shift in the spatial distribution of ecological risks.The middle-low risk regions expanded by 3329.44 km2 during this period,leading to their proportion rising from 32.89％to 56.30％.In contrast,the low-risk areas saw a consistent decrease,while the medium,medium-high and high-risk zones displayed a trend of decreasing at first and then increasing.The dPC selected 23 general ecologic-al sources and 18 nature reserves,while the MCR model constructed 52 general ecological corridors and 33 ecolo-gical corridors within nature reserves.The landscape ecological corridor is predominantly situated in the southw-est,central,and northern regions of the study area,with the southeast corridor being absent due to unique geo-graphical factors and urban development.This configuration results in an ecological pattern characterized by"one belt,two corridors,and four areas."These findings illustrate the ecological risk evolution in Kunming over the past 2 decades.The establishment of nature reserves and an urban ecological network can serve as a foundation for delineating,adjusting,and enhancing the ecological control area in Kunming.关键词
土地利用/生态安全/风险评估/自然保护区/景观格局Key words
land use/ecological security/risk assessment/nature reserve/landscape pattern分类
环境科学引用本文复制引用
可凯勒,彭建松,苗雪,杨嘉绮,符盟..基于生态风险评价的昆明市多层次生态安全格局构建[J].西南林业大学学报,2025,45(5):110-120,11.基金项目
云南省森林城市发展规划(2022-2035)项目(1863112)资助 （2022-2035）
云南省高校质量工程项目(515006056)资助. （515006056）
