基于景观安全格局的香格里拉县生态用地规划  

Shangri-La county ecological land use planning based on landscape security pattern

作　　者：李晖[1] 易娜[1] 姚文璟[1] 王思琪[1] 李志英[1] 杨树华[2] 

机构地区：[1]云南大学城市建设与管理学院,云南昆明650091 [2]云南大学生命科学学院,云南昆明650091

出　　处：《生态学报》2011年第20期5928-5936,共9页Acta Ecologica Sinica

基　　金：自然科学基金项目(50968017);云南省基金项目(2008ZC002M)

摘　　要：通过构建不同水平的景观安全格局,可以为区域的生态用地规划提供相应对策。香格里拉县近年来随着经济的发展生态安全问题已经提到日程。选择研究区内的5个自然保护区和风景名胜区为"源",以生物多样性保护为目标,选择地表景观类型、坡度两个因子及相应的阻力因子系数进行分析。采用GIS中的空间分析工具,计算建立了地表景观类型、坡度两个单因子的最小累积阻力面,在此基础上,利用加权叠加方法构建了两个因子的最小累积阻力面。根据最小累积阻力阈值,建立了"源"间生态廊道及"源"与外部联系的辐射道,确定了关键的战略点,最终完成景观安全格局的构建。基于生物多样性目标得到了低、中、高3个不同安全水平的生态用地分别占研究区总面积的12.81%、44.1%和80.3%。为制定研究区生态安全策略提供了重要参考。Landscape security pattern refers to the spatial pattern of potential in landscape,which can play a potential decisive impact and constitute a pattern of controlling the security landscape.Between the different security situations through the establishment of model,you can minimize the cost to achieve win-win results.Ecological land is defined as the ecosystem（land unit） and its spatial position that have important significance in safeguarding critical ecological processes and providing critical ecosystem services.To achieve the biodiversity conservation objectives,we constructed different levels landscape security pattern,and it can provided corresponding countermeasures for ecological land use planning in the research area.The research area of this paper is Shangri-La County that located in the northwest of Yunnan Province,longitude 99 ° 20′—100 ° 19′,latitude 26 ° 52 ′—28 ° 52′,and located in Yunnan,Sichuan and Tibet intersection of the triangular area,total area is 11,613 square kilometers.Due to many natural and historic and other reasons,social and economic development was slow.With the Shangri-La economic development,the emerging eco-tourism area,national park tourism development,and construction of large water conservancy projects,all of this become the driving forces for the change of the spatial pattern of urban landscape,such as a great quantity of the natural habitats disappear,landscape fragmentation increase,landscape accessibility reduce in the region.Obviously,Shangri-La′s ecological security has become the bottleneck of sustainable development of the county already.Select five nature reserves and scenic spots as the ＂source＂ from the research area,at the same time,to achieve the biodiversity conservation objectives,choose and analysis the type of surface landscape,slope and the corresponding coefficient of these two factors.With spatial analysis tools of ArcGIS calculated and established two single-factor cumulative resistance surfaces.On this basis,it was constructed us

关 键 词：景观安全格局 生态用地规划 生态安全 香格里拉县 生物多样性 

分 类 号：F301[经济管理—产业经济] P901[天文地球—自然地理学]