Abstract:

On the background of a new round of land use planning in our country,spatial regionalization and land arrangement have become the focuses of current research issues.With the support of GIS database and spatial analysis tools,comprehensive quantitative evaluation methods for constructive land suitability and ecological restriction were established for county scale research,〖JP2〗and a regionalization scheme of constructive〖JP〗 land suitability was formed by the judgment matrix of constructive land suitability evaluation degree and ecological restriction evaluation degree.The research approach was utilized in Kunshan which has typical county economic development since reform and opening up,and has obvious contradiction between land supply and demand at present.According to regionalization results,the region in Kunshan could be divided into four types of constructive function area:the feasible construction area,the control construction area,the limitary construction area,and the prohibited construction area.Furthermore,countermeasures and strategies to land management of different types of regionalization areas were put forward to improve land use management and optimize the spatial layout of constructive land in Kunshan.The feasible construction area should encourage industries and towns agglomeration,and propose highdensity and highstrength development;the control construction area should control the type of development and construction activities to lessen the impact on the ecological environment;the restricted construction area not only should control the type of development and construction activities,but also should limit the scale of the activities;the prohibited construction area should prohibit the construction activities except the necessary infrastructure facilities for ecological and environment protection.