Evaluation of Ecological Sensitivity of Zhangzhou City Based on GIS
With the rapid expansion of urbanization in Zhangzhou city in recent years,human activities have affected its urban ecological space,so Zhangzhou city has actively explored the ecological development mode and put forward the urban ecological development orientation of"idyllic city,ecological city".The study focuses on Zhangzhou city and selects factors such as elevation,slope,slope direction,NDVI,land use type,and water buffer zone as ecological sensitivity evaluation factors.By combining methods such as hierarchical analysis,weighted superposition analysis,spatial statistical analysis,single-factor and multifactor ecological sensitivity analysis was conducted through ArcGIS software,to achieve the spatial distribution of ecological senstivity in Zhangzhou city.The results show that NDVI,land use type and watershed buffer are the main influencing factors of its ecological sensitivity.Extremely high sensitivity areas account for 12.22%,high sensitivity areas for 34.42%,medium sensitivity areas for 28.92%,low sensitivity areas for 16.56%and very low sensitivity areas for 7.88%.Overall,its spatial distribution pattern exhibits a gradual decrease from northwest to southeast.This study provides some scientific basis for the ecological environment construction and planning in Zhangzhou city.
ecological sensitivityanalytic hierarchy processGISZhangzhou city
万方数据
维普
