中国城市群蔓延态势及其治理方向——以三大城市群为例

The current status of urban agglomeration sprawl and its governance direction:taking three major urban agglomeration for example

从城市群内涵出发,构建城市群蔓延指数,采用主成分分析及统计分析法,分析了中国三大城市群2000-2014年期间的蔓延动态。结果显示:研究期内城市群建成区与人口变化率均先降后升,蔓延收敛但仍以土地扩张速度高于人口增长速度的蔓延类型为主;蔓延指数方面,长三角和珠三角先升后降,京津冀以0.2的速率下降;研究期内不同时段各城市群扩张模式的演变过程不同,扩张重心和方向与城市群经济发展、规划、政策等因素密切相关;珠三角的蔓延比长三角和京津冀显著;城市蔓延重心由核心城市向新兴中心城市甚至是欠发达城市转移。据此认为,应有针对性地控制城市群蔓延,城市群蔓延治理的重点应偏重于珠三角。

In the sprawl index, the Yangtze River Delta and Pearl River Delta rose firstly and then decreased, and Bei- jing - Tianjin - Hebei Region decreased by the rate of 0.2. ; In different periods, the evolution process of urban agglomerations expansion mode is different, and the gravity and the direction are related to the economic development, planning, policy and other factors. ; The sprawl of the Pearl River Delta was more obvious than the Yangtze River Delta and the Beijing - Tianjin - Hebei Region; The gravity of city sprawl transfers from the core cities to the center of the emerging cities even to less developed cities. Then it proposes that urban governance should pay attention to control spread of city sprawl, and the governance focus should be on the Pearl River Delta Area.