基于ArcView空间分析功能的都市圈空间范围界定研究——以南京都市圈为例

Research on Defining the Scope of the Metropolitan Area Based on the Spatial Analysis Function of ArcView——A Case Study of Nanjing Metropolitan Area

基于ArcView的空间分析功能,探讨了都市圈空间范围的界定方法.根据江苏省各县级行政区的实力指数属性,用邻域分析方法求得省内的若干"经济高地",作为辨识江苏省内都市圈核心城市的标准;以南京都市圈为例,用缓冲区分析方法求得以南京为中心、100 km经济吸引区范围之内的县级行政区,并用Voronoi分析法对其进行修正;根据江苏省内快速交通网的drivetime属性,用网络分析方法求得南京市辖区的2 h车程范围;分析比较了南京市区100 km经济吸引区与2 h车程范围的交集和并集,综合确定南京都市圈的核心影响区和间接影响区,并提出相应的规划建议.

Based on the spatial analysis function of ArcView,the definition method of the scope of metropolitan area is discussed.First of all,several economic highlands in Jiangsu are worked out by neighborhood analysis,in order to recognize the central cities of metropolitan area in Jiangsu;second,taking Nanjing metropolitan area as an example,the 100 km spatial scope of Nanjing metropolitan area is worked out by buffer analysis,and the result is amended by Voronoi analysis;third,the 2 h temporal extent of Nanjing metropolitan area is worked out by network analysis;finally,the intersection and union of the spatial scope and the temporal extent of Nanjing metropolitan area are worked out,then the core scope and the expanded scope of Nanjing metropolitan area can be defined,and some corresponding suggestions for future planning and construction of Nanjing metropolitan area are made.