The Study of Ecological Sensitivity Analysis of Qingdao City Using GIS and AHP Method

Abstract

This study employs the Geographic Information System (GIS), remote sensing (RS), and the Analytical Hierarchy Process (AHP) to create a complete ecological environment sensitivity evaluation system and perform an ecological sensitivity analysis (ESA) of Qingdao City. First, a single-factor ESA was performed by selecting seven indicators of slope, aspect, Normalized Difference Vegetation Index (NDVI), river buffer zone, Land-Use and Land-Cover Change (LUCC), and soil classification, which were then superimposed in GIS based on the weight of each factor, yielding a quantitative ESA of Qingdao. The results indicate that the general ecological sensitivity of Qingdao is largely light and medium. The area proportions of extremely sensitive regions, highly sensitive areas, medium sensitive areas, low sensitive areas, and insensitive areas are 4.09%, 10.4%, 25.58%, 35.1%, respectively.