面向新时代的城市体系发展研究及其规划启示——基于“网络关联”与“地域邻近”的视角

RESEARCH FINDINGS AND PLANNING ENLIGHTENMENTS OF CHINA’S URBAN SYSTEM IN NEW ERA:FROM THE PERSPECTIVE OF NETWORK CONNECTIVITY AND TERRITORIAL CONTIGUITY

对我国城市体系的正确认识是新时代科学编制全国国土空间规划的前提之一。在对城市体系相关研究概述的基础上,阐释"网络关联"与"地域邻近"在城市体系发育过程中的双重机理和依存关系;进而运用社会网络关联、结构洞、邻近加权网络关联等指标算法,构建起"网络关联"与"地域邻近"两种视角下的城市网络模型。然后以新的网络模型对我国城市体系演进趋势及发育特征做分析研究;发现我国城市体系的多等级、多层级以及网络化共存的城市空间发展格局日趋成熟,大中小城市协调发展的格局不断强化;同时,城市—区域的地域差异化特征也已较为凸显。最后探讨本研究发现对新时代规划工作的启示。

A correct understanding on China’s urban system is a prerequisite for the scientific formulation of China’s territorial planning.Based on the overview of relevant research on China’s urban system,this paper explains the dual mechanism and interdependence of"network connectivity"and"territorial contiguity"in the urban system.Then some indexes and algorithms,such as social network connectivity,structural hole and contiguity weighted network connectivity are used to build a city network model from the perspective of"network connectivity"and"territorial contiguity",which are used to analyze the evolution trend and development characteristics of China’s urban system.Research shows that:China’s urban spatial development pattern featured by multi-hierarchical,multi-level and networked is becoming increasingly mature,and the coordinated development pattern of large,medium-sized and small cities has been continuously strengthened;and the regional differentiation characteristics of cities and regions have also been highlighted.This research aims to provide a reference for the planning work and related academic research in the new era.