Research on the Comprehensive Regionalization of Land Use at County-Scale——A Case of Yunyang County,Chongqing City

Learning from the previous studies of comprehensive land use regionalization,the direction of land use was made by the means of two-level classification-regional division and functional division to promote the regional harmonious development.Yunyang County can be classified into 4first-level regional zones including hillock zone of western Yunyang,middle and low mountains zone of north Yangtze River,middle and low mountains zone of south Yangtze River,middle-hills zone of northeastern Yunyang.By the means of factor analysis and cluster analysis,sub-divisions in every regional zone were made according to relative indexes of regional social economy,land resource and ecological environment.And then based on the existing land-use problems in each divisional zone,land-use control rules of different zones are put forward.Therefore,the result can provide the scientific basis for optional allocation of land resource and social economic sustainable development of Yunyang County.