基于生态安全格局的云南省福贡县城空间扩张研究  

Spatial Extension of Fugong City Based on Ecological Safety Pattern

作　　者：赵凯[1] 李晖[1] 朱雪[1] 

机构地区：[1]云南大学城市建设与管理学院,昆明650091

出　　处：《热带地理》2008年第6期529-533,共5页Tropical Geography

基　　金：国家自然科学基金项目"怒江流域中段景观生态规划模式的研究"(50468004)

摘　　要：以云南省福贡县为例,利用2004年TM影像图和基础地形图,在GIS技术支持下,选择地势地貌(坡度)、地质灾害、河流、林地和耕地5个生态因子,将城市拓展区分为优先发展、适合发展、限制发展和禁止发展4个等级,对福贡县城扩张的生态安全格局进行分析研究。结果表明:禁止发展区的面积最大,是研究区的主导等级类型;优先发展区位于建成区东部,但由于其紧邻地质灾害潜伏区,不宜作为城市建设用地;县城南部是城市发展的理想空间,以怒江左岸为城市扩张的主要方向,这种空间格局将最大程度地保证福贡县城的生态安全。By using TM images and basic landform map in 2004, The ecological security pattern in the process of spatial extension of Fugong is studied with the support of GIS. Five factors, including topography （gradient）, geological disasters, river, farmland and forestland, are chosen to evaluate its ecological security pattern. The urban extension areas are divided into development priority area, fit development area, development limit area and development prohibition area. The results show that： development prohibition areas have the largest space, and it is a dominant type of grade; development priority area is in the eastern built-up area, but it is unsuitable for urban construction land as a result of close to the potential geological disaster area. The south of the city is an ideal develop area and the left bank of the Nujiang River should be as a main direction of urban expansion; the spatial pattern will ensure the ecological security of Fugong County at highest level.

关 键 词：县城扩张 生态因子 安全格局 

分 类 号：X171.1[环境科学与工程—环境科学]