南京都市圈交通与经济发展耦合协调关系研究

Study on the coupling coordination relationship between traffic and economic development of Nanjing metropolitan circle

南京都市圈是我国重要的跨省协作都市圈,研究其区县交通与经济发展的空间非均衡性可为区域交通和经济发展的良性互动提供理论支撑。文章基于交通优势度与经济发展水平的耦合协调关系,建构了评价指标体系,系统分析了南京都市圈交通优势度和经济发展水平的空间格局,阐明了不同区县单元的特征类型及发展差异。结果表明:南京都市圈交通优势度差异较大,存在明显的极化效应,其极差为0.94,形成了由高至低扩散的沿江交通优势带;经济发展水平呈金字塔形结构,其中约60%的区县低于区域均值,呈“多核”圈层结构;其交通优势度与经济发展耦合关系整体良好,但协调度偏低,88.3%的评价单元耦合度>0.90,相互作用较为明显。

Nanjing metropolitan circle is an important inter-provincial cooperative metropolitan area in China.The study of the spatial disequilibrium can provide theoretical support for the positive interaction between regional traffic and economic development.Based on the coupling coordination relationship between traffic dominance and economic development,this paper constructs an evaluation index system and systematically analyzes the spatial pattern of traffic dominance and economic development in Nanjing metropolitan circle.The characteristic types and development differences of different district and county unit are expounded.The results show that there is a significant polarization effect in Nanjing metropolitan circle,with a range of 0.94,forming a traffic advantage zone along the Yangtze River from high to low.The level of economic development shows a pyramid-shaped structure,nearly 60%of the districts and counties below the average,presenting a“multi-core”circle structure.The coupling coordination relationship between the two is generally good,but the coordination degree is low.The coupling degree of 88.3%evaluation units is more than 0.90,and the interaction is obvious.