“快速蔓延”与“局部收缩”:广东省域内城市空间指数的测量分析

Rapid Sprawl and Local Contraction:A Measurement Analysis of Urban Spatial Index in Guangdong Province

作为中国式现代化在区域层面上的体现,区域协调和城市高质量发展不仅是推进中国式现代化的必要支撑,也是推进中国式现代化的关键抓手。如此,探究区域内部城市发展态势的匹配与耦合是促进新型城镇化发展的重要举措。本文对2007—2017年广东省域范围内的21个地级市的蔓延扩张与局部收缩交叉形态进行测量,从整体维度、区域差异、时间序列三个维度进行深入分析。研究发现:广东省整体蔓延程度不高,呈现不规律的波动状态,区域差异明显;整体收缩程度比较低,且波动幅度不大,非珠三角地区城市出现了收缩现象,而珠三角地区城市出现的比较少;从二者的交互分析,广东省城市的发展趋向可以分为:“无蔓延+无收缩”“高度蔓延+低度收缩”“高度蔓延+高度收缩”“低度蔓延+高度收缩”四种类型;最后,本文提出进一步推进区域协调与高质量发展的政策建议。

Regional coordinat ion and high-quality urban development are essential for Chinese modernization.Exploring the matching and coupling of urban development dynamics within a region is crucial for promoting new urbanization.This paper measures the cross patterns of spreading expansion and local contraction of 21 prefecture-level cities in Guangdong Province from 2007 to 2017.We analyze the data from three dimensions:overall,regional differences,and time series.Our findings show that the overall degree of spreading in Guangdong Province is not high and regional differences are obvious.The overall degree of contraction is relatively low,with contraction occurring more in non-Pearl River Delta cities.The development tendency of cities in Guangdong can be divided into four categories:“No sprawl and no contraction,”“high sprawl and low contraction,”“high sprawl and high contraction,”and“low sprawl and high contraction.”We propose policy recommendations to further promote regional coordination and high-quality development.