This PhD in urban geography focuses on the evolution of the urban framework since the early 1980 : in the province of Zhejiang in China. The unprecedented size and rapidity of Chinese urbanization have transformed both their structure and territorial distribution. Zhejiang province, whose urbanization rate increased from 13.7 to 61.6% between 1980 and 2010, is located south of Shanghai. It covers a part of the Yangtzi Delta region, one of the biggest metropolitan areas in China, and highlights the urban transformations both within such thriving territories and in peripheral areas. The development of small cities, with a population between 100,000 and 500,000 inhabitants is proving to be the most common feature of the evolution of its urban ...