从场空间到流网络:粤港澳大湾区城市群空间结构特征及优化路径研究

From Field Space to Flow Network:A Study on the Spatial Structure Characteristics and Optimization Path of the Urban Agglomeration in the Guangdong-Hong Kong-Macao Greater Bay Area

检视粤港澳大湾区城市群空间结构演化趋势,对纵深推动大湾区高质量发展意义重大。本研究因应数字经济对区域要素流动结构的影响,提出粤港澳大湾区“流网络”分析框架,并以首位度和齐普夫法则测度传统空间结构特征,以上市企业的“总部—分支”机构分布测度流网络特征。结果表明:大湾区总体经历了先集聚再分散的发展过程;各城市人口分布梯度不合理,核心城市的人口扩张推动了城市群的定型。大湾区经济规模结构呈现帕累托分布模式,各城市经济规模变差较大。从城际联系来看,广州深圳之间具有高联通度,形成了联通走廊,2000年以来深圳的相对联通度高居首位,区域网络日渐完善。未来,应织密高效的综合交通网络,加速市场一体化进程、构建“双核三圈”网络型城市群体系、设立“广深接合片区”并加快打造“广深联动走廊”,开创大湾区高质量协同发展新格局。

Examining the spatial structure evolution trend of urban agglomerations in the Guangdong-Hong Kong-Macao Greater Bay Area is of great significance for promoting high-quality economic development.In response to the impact of the digital economy on the spatial structure of regional economy,a framework for analyzing the spatial structure of the“flow network”in the Guangdong Hong Kong Macao Greater Bay Area was proposed.The traditional spatial structure characteristics were measured using primacy degree and Zipf's rule,and the spatial characteristics of the flow network were measured using the distribution of“headquarters branch”institutions of listed companies.The results indicate that the Greater Bay Area has gone through a development process of first agglomeration and then dispersion;The population distribution gradient of each city is unreasonable,and the population expansion of core cities has driven the formation of urban agglomerations;The economic scale structure of the Greater Bay Area shows a Pareto distribution pattern,with significant differences in economic scale among cities.From the perspective of intercity connections,Guangzhou and Shenzhen have a high degree of connectivity,forming a connecting corridor.Since 2000,Shenzhen has ranked first in terms of relative connectivity,and the regional urban network is gradually improving.In the future,we should weave a dense and efficient comprehensive transportation network,promote market integration in the Greater Bay Area,build a“dual core and three circle”network urban agglomeration system,set up the“Guangzhou-Shenzhen connection area”and accelerate the construction of the“Guangzhou-Shenzhen linkage corridor”,and create a new pattern of high-quality coordinated development in the Greater Bay Area.