Ecological Sensitivity Evaluation at the County Level Based on AHP-GIS:A Case Study of Jian'ou City
LI Xiafei
XIAO Yao
XU Wanjuan
WU Xiaogang
Abstract：In this study,six ecological sensitivity factors were selected to assess the ecological sensitivity of Jian'ou City,including elevation,slope,aspect,NOVI,water body buffer zones,and land use types.The Analytic Hierarchy Process(AHP)was employed to determine the weights of each factor.Using ArcGIS spatial analysis tools,both single-factor and multi-factor sensitivity analyses were conducted,and the ecological sensitivity zones were classified accordingly.The results indicate that the comprehensive ecological sensitivity of Jian'ou City is predominantly concentrated in moderately and highly sensitive areas,accounting for 29.76％and 27.79％of the total area,respectively.The proportions of low,slightly,and extremely sensitive areas are 8.89％,17.11％,and 16.45％,respectively.Among the influencing factors,land use types and water body buffer zones had relatively high weights,at 0.3727 and 0.1999,respectively.Spatially,the ecological sensitivity of Jian'ou City tends to increase gradually from the southwest to the southeast.This study provides a scientific basis for the construction of ecological security patterns and urban development planning in Jian'ou City.
Keywords：ecological sensitivity assessmentGISJian'ou cityanalytic hierarchy process
Publication Date：2025-10-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 65-71 )