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《Urban Problems》 2017-08
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The current status of urban agglomeration sprawl and its governance direction:taking three major urban agglomeration for example

XU Yun-lu;LEI Guo-ping;  
In the sprawl index,the Yangtze River Delta and Pearl River Delta rose firstly and then decreased,and Beijing-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.
【Key Words】: urban agglomerations sprawl index cluster analysis governance direction
【Fund】: 国家社会科学基金青年项目(15CGL078)——基于成本比较的中国城市蔓延治理研究
【CateGory Index】: F299.2
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