Study on Land Use Regionalization of County in the Hilly and Mountainous Region,Southwestern China——A Case Study of Youyang County in Chongqing

Land-use regionalization is the reflection of the regularity of regional differentiation and plays an important part in spatial zonation,especially in general land use planning.Based on the hilly and mountainous regions in southwestern China,using layer cluster method,choosing the natural-socio-economic leading factors as zoning criterions and integrating the geographic information technology,this paper studies the land-use regionalization issues of Youyang county.Through adjustment and optimization of the divisions,the county is divided into four areas,they are urban and rural development areas with the terrain of high-hills and low-mountains in the central part,comprehensive optimization of agricultural development areas with the terrain of high-hills in the eastern part,eco-tourism development areas with the terrain of low-mountains in the southwestern part and ecological conservation areas with the terrain of mountains in the north.This makes clear the focus of regional land-use and provides a basis for regulating land-use activities.It is suggested that using GIS technology and layer cluster method can make land-use regionalization programs more science-based,pertinent and maneuverable.