基于GIS的山水型旅游城市生态敏感性分析——以桂林市为例

Ecological Sensitivity Analysis of Landscape Tourism Cities Based on GIS:A Case Study of Guilin

以山水型旅游城市桂林市为研究对象,从地形地貌、自然条件、人文条件三个方面构建评价指标体系,采用GIS技术的空间加权叠加功能和层次分析法,研究桂林市生态敏感性空间分布特征。结果表明:桂林市生态敏感性总体上表现出西北高、中部和东南低的空间分异特点,其综合性生态敏感性等级为中轻度敏感,利于旅游资源开发和旅游活动的开展。

Taking the city of Guilin as an example,the paper,with the comprehensive assessment system based on geomorphology,natural conditions and human environment,is to examine the spatial distribution characteristics of the ecological sensitivity concerning the city of Guilin by taking advantage of the spatial weighted superposition function of GIS technology and AHP.The results reveal that the ecological sensitivity concerning the city is characterized by its high degree in northwest and low degree in middle and southeast.The ecological sensitivity of the study area can be divided into five grades,including insensitivity as well as slight,moderate,strong and extreme sensitivity.The comprehensive ecological sensitivity level of Guilin is moderate-slight,which contributes to the exploitation of the tourism resources and the implementation of the tourism activities.