基于“乡村绿化”数据的怒江州生态安全格局研究  

Ecological Security Pattern of Nujiang Prefecture Based on “Rural Greening” Data

作　　者：蒋琳 马宝才 JIANG Lin;MA Baocai(Ecology Branch,Yunnan Institute of Forest Inventory and Planning,Kunming 650031,China)

机构地区：[1]云南省林业调查规划院生态分院,云南昆明650031

出　　处：《林业调查规划》2023年第1期104-109,共6页Forest Inventory and Planning

摘　　要：基于Landsat遥感影像对怒江州进行土地利用类型解译,通过3S技术手段,叠加其他相关数据,对怒江州生态系统脆弱性进行评价,并进行生态系统适宜性分区。结果表明,怒江州林地与草地两项占比达86.46%,建设用地占比仅0.27%,怒江州自然环境受制于特殊地形,并未遭到大程度的破坏;怒江州生态系统总体表现为:轻微脆弱与轻度脆弱土地占比达52.34%,重度、中度脆弱土地主要集中在西北部较高海拔地区,生态系统总体保持在较好水平。基于MCR模型,以乡村绿化数据为生态源地,对怒江州绿地适宜性进行评价。结果表明,适宜生态用地拓展的土地面积总占比达90.83%,表明总体生态格局较为安全,在未来城镇化、生态格局建设中具有较大回旋余地。Based on Landsat remote sensing image, the land use type was interpreted, the ecosystem fragility of Nujiang Prefecture was evaluated and the ecosystem suitability zoning was carried out by means of 3S technology and other relevant data.The research results showed that the proportion of woodland and grassland in Nujiang Prefecture had reached 86.46%, while the proportion of construction land was only 0.27%, and the natural environment was restricted by the special topography and had not been damaged to a large extent;the overall performance of the ecosystem in Nujiang was as follows: slightly fragile and lightly fragile land accounted for 52.34%, and the heavily and moderately fragile land was mainly concentrated in the northwest high altitude areas, and the ecosystem was generally maintained at a good level. Based on the MCR model, the suitability of green space in Nujiang Prefecture was evaluated with the rural greening data as the ecological source. The total land area suitable for ecological land expansion in Nujiang accounted for 90.83%, indicating that the overall ecological pattern was relatively safe and had a large room for manoeuvre in the future urbanization and ecological pattern construction.

关 键 词：生态安全格局 生态系统脆弱性 MCR模型 生态系统适宜性 “乡村绿化”数据 怒江州 

分 类 号：S731.7[农业科学—林学] S718.54[环境科学与工程—安全科学] X913