GIS Based Land Use Decision in Urban Region Case from Hangzhou, China

Construction land location advantages and agricultural land suitability evaluation are the most important basis for land use decision in urban region. This article focuses studying on Hangzhou case, an urban region with very rapid construction expansion. In this study, GIS is using for spatial analysis and mapping, while K-Means Clustering (KMC) and BPNN for attribute data process. Factors including economic agglomeration, prosperous degree, transportation accessibility, and ecological dominance, have been considered for construction land location advantages evaluation with KMC. Factors including topography features, soil quality, agricultural infrastructure, and geological environment, have been evaluated with BPNN. The evaluation result shows that lowest opportunity cost of agricultural and ecological resources is the principal rule for land decision in urban region. The suitable urban expansion space distributes across with high-quality agricultural land, which is beneficial to regional ecological balance. The comparison between construction land location advantages and agricultural land suitability is valuable for land use decision in urban region. Integration of KMC, BPNN, and MapGIS has valuable advantages for land decision system.