摘要
以昆明市为例,综合运用InVEST模型、景观连通性评价和电路理论构建生态安全格局,识别国土空间生态修复关键区域.研究表明,昆明市生态源地共34个,面积6421.95km2,呈西多东少、北聚南散的空间分布状态;提取生态廊道67条,全长859.72km,廊道分布空间差异性明显,构建了“一环、三区、三屏、六轴、多点”的生态安全格局;识别27处生态夹点和33处生态障碍点,为需进行生态修复的关键区域,面积分别为197.68,155.84km2,主要分布在南部地区;综合关键区域的不同地理特征和地类现状,提出自然保护为主、人为修复为辅和人为修复与自然保护并重的两类修复策略.研究可为市域国土空间生态修复提供参考.
Taking Kunming as a case study area,an ecological security pattern was built based on the InVEST model,landscape connectivity evaluation and circuit theory to identify the key areas for the ecological restoration of territorial space.According to the research,there were 34 ecological source areas in Kunming with an area of 6421.95km2,exhibiting a distribution pattern of being“denser in the west and sparser in the east”and“concentrated in the north and scattered in the south”.67 ecological corridors were extracted with a total length of 859.72km;the corridors show a spatially variable distribution,forming the ecological security pattern of“one ring,three districts,three screens,six axes and multiple points”;27 ecological pinches and 33 ecological barriers were identified,forming the key areas for ecological restoration,respectively covering 197.68 and 155.84km2,mostly in southern Kunming.Considering the geographical features and current land types of the key areas,two restoration strategies were proposed,namely,the strategy with natural conservation as the main body and human restoration as the supplement and exerting equal stress on human restoration and natural conservation.The research provided a reference for the ecological restoration of municipal territorial space.
作者
覃彬桂
林伊琳
赵俊三
陈国平
何万才
吕青宙
QIN Bin-gui;LIN Yi-lin;ZHAO Jun-san;CHEN Guo-ping;HE Wan-cai;LÜQing-zhou(Faculty of Land Resources Engineering,Kunming University of Science and Technology,Kunming 650093,China;Key Laboratory of Geospatial Information Integration Innovation for Smart Mines,Kunming 650093,China;Science and Technology Innovation Team of Natural Resources Spatial Information Integration and Application in Yunnan Universities,Kunming,650211,China)
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2023年第2期809-820,共12页
China Environmental Science
基金
国家自然科学基金资资助项目(41761081)
云南省基础研究计划项目(202201AU070112)
昆明理工大学引进人才科研启动基金资助项目(KKZ3202021055)
云南省哲学社会科学规划项目(PY202129)。
关键词
InVEST模型
电路理论
生态安全格局
国土空间生态修复
关键区域识别
InVEST model
circuit theory
ecological security pattern
ecological restoration of territorial space
identification of key area
