县域尺度的空间主体功能区划分初探

在GIS技术支撑下,从自然生态约束和经济开发支撑两方面,选择了山地面积比重、水网密度、湿地面积比重、主要河流长度、主要资源拥有量、交通可达性、人口学历层次、GDP等指标作为县域尺度空间主体功能分区评价因子,并通过象限图法划分县域主体功能区.以安徽省无为县为实例,以该县23个乡镇为基本评价单元,采用经济社会开发支撑和自然生态约束的趋同性动态聚类和互斥性矩阵分类相结合的梯阶推进的分区方法,把无为县初步划分出4类主体功能区:重点开发区、鼓励开发区、限制开发区和禁止开发区.最后针对不同的功能区提出了有关开发的政策建议.

Subdivision of Development Function Regionalization at County Scale

Supported with,it commenced with the two sides of eco-environmental restriction and economy-development support.Indexes such GIS as mountain area proportion,water net density,wetland area proportion,the length of main stream,the quantity of major resources,traffic accessibility,undereducated degree,and GDP were selected as subdivision factors.Four types of development function regionalization were then created using the quadrant method.Furthermore,Wuwei County territory was taken as an example with 23 towns in the territory being regarded as basic evaluation units.By adopting the assimilated clustering and mutex-similar matrix classification with economy-development support and eco-environmental restriction,the territory was subdivided into preferential development area,feasible development area,moderate conservation area,and exploitation prohibited area.Finally,some policies and advices were put forward for development function regionalization.