The agriculture eco-environment of Karst mountain areas in Northwestern Hunan is typically vulnerable. Traditional methods of vulnerability evaluation can not get accurate result because the methods are based on administrative region and statistical data are used. To improve the accuracy the technologies of GIS and RS are used in this study. The expert referring method and Analytic Hierarchy Process method are used to build indexes system,RS technology is mainly used to get regional data of the study area,and GIS technology is used to build eva...
