县域尺度的国土主体功能区划研究——以江苏省海安县为例

On the subdivision of main function region of territory in county scale——A case study of Haian County in Jiangsu Province

国土主体功能区划不同于以往各类区划,它所面向的区域是功能属性更为突出的综合性区域,因此,需要区划方法的革新;以江苏海安县为实证区域,构建国土主体功能区划指标体系,均质类因子按乡镇单元赋值,扩散型因子结合服务设施空间扩散特点以50cm×50cm网格单元进行赋值,并加权求和计算出三大指标分值和总分值;综合运用矩阵判别法和叠置分析法将县域国土划分为4类主体功能区。

The subdivision of main function region of territory is different from all traditional regionalizations,and it demands methodology innovation because it faces the comprehensive region that has many functional properties.Taking Haian county in Jiangsu as an example, firstly,the index system of the subdivision of main function region of territory is created.Then,base on the town,the valuations of the even genes are gave,and by combining with the features of the spatial diffusion of service facility,based on the 50m×50m network,the valuations of the diffusion genes are gave,and by the model of weighted summation,the marks of three indexes and total valuation are calculated. Finally,the territory in Haian county was subdivided into four types of main function region by adopting methods of the matrix discriminance and the superposition analysis.