An ecological sensitivity analysis based on GIS in Fuyang District,Hangzhou City, Zhejiang Province, China
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摘要: 态敏感性分析是城市生态建设的重要依据。以浙江省杭州市富阳区建成区为例，选取土地利用类型、坡度、坡向、高程、水域缓冲区和植被覆盖指数等6个因子，将研究区划分为极敏感区、高度敏感区、中度敏感区、低度敏感区和非敏感区等5个等级。利用层次分析法确定评价因子权重，应用地理信息系统（GIS）空间分析技术和因子叠加法完成研究区综合生态敏感性评价，并建立空间分布图。研究表明：富阳区建成区生态敏感性总体较高，极敏感区、高度敏感区、中度敏感区、低度敏感区和非敏感区等5个等级敏感区面积比例分别为7.14%，18.95%，33.98%，20.17%和19.76%。在生态敏感性综合评价基础上，提出了不同类型生态敏感区土地利用策略，为今后城市生态环境规划与建设提供科学依据。图2表2参21Abstract: To provide a scientific basis for urban planning and development, an ecological sensitivity analysis, frequently used in urban ecological development, was conducted in Fuyang District of Hangzhou City, Zhejiang Province. Six factors were selected to evaluate ecological sensitivity namely: land use type, slope, aspect, elevation, buffer zone of rivers, and vegetation cover index （NDVI） with ecological sensitivity being classified into five sensitivity grades: extreme, strong, moderate, slight, and non-sensitive. Factor weights were also calculated using an analytic hierarchy process （AHP）. Based on a spatial principal component analysis from geographical information system （GIS） and a factor superposition analysis were used for evaluation. Results for spatial distribution showed that ecological sensitivity in Fuyang District was very high with the area percentage of the five grades being extreme-7.14%, strong-18.95%, moderate-33.98%, slight-20.17%, and non-sensitive-19.76%. A land-use strategy for the different ecological sensitivity regions was presented. ［Ch, 2 fig. 2 tab. 21 ref.］
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2015.06.003
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