南京都市圈经济发展时空分异与空间结构分析

The Analysis of the Economic Spatial-temporal Variation and Spatial Structure's Development in Nanjing Metropolitan Area

基于南京都市圈2008-2015年的相关经济数据,通过构造经济强度与隶属度模型、计算CV变差系数和经济社会要素流度量指标,分析南京都市圈经济空间结构及其内部社会经济流和外向功能时间变化差异.结果表明:2008-2015年南京都市圈经济发展轨迹呈"倒U型",城市间经济差异缩小.以南京市为中心依次形成4个等级圈,分别是紧密腹地(镇江和滁州)、次紧密腹地(扬州和马鞍山)、竞争腹地(芜湖和淮安)和边缘腹地(宣城).各城市的经济社会要素流强度和外向功能量空间差异明显,形成以南京市为核心的"马鞍式"圈层结构,分别为核心区、中间区和边缘区,经济发展的空间结构具有明显的等级性.

Based on the relevant economic data of Nanjing Metropolitan Area from 2008 to2015,this paper analyzes the economic spatial structure of Nanjing metropolitan area and its internal social economic flow and extroversion in difference of time and space by constructing economic strength and membership model,calculating CV variation coefficient and economic and social factor flow metrics.The results show that the economic development track of Nanjing metropolitan area in2008-2015 is'inverted U-shaped',and the economic gap between cities is narrowed.Four levels of circles are formed in the center of Nanjing,namely the tight hinterland(Zhenjiang and Chuzhou),the second tight hinterland(Yangzhou and Maanshan),the competition hinterland(Wuhu and Huaian)and the marginal hinterland(Xuancheng).The economic and social factor flow intensity and the outward function volume of each city are significantly different,forming a'saddle-style'circle structure with Nanjing as the core,which is the core area,the middle area and the marginal area respectively.The spatial structure of economic development has obvious Hierarchical.