中国城市群发育与规划适配性的时空演变研究

以中国19个城市群及全国296个地级以上城市为研究对象,通过收集2010—2019年中3个年份的相关数据,基于辐射场强模型,在识别城市群发育格局的基础上,将城市群发育情况与政府部门出台的城市群规划进行比较,归纳城市群发育与规划之间适配性的现状及时空演变规律。结果表明：2010—2019年,城市结节性指数具有与行政级别关系密切的梯度特征,少数国家级、区域级城市群在规划期内辐射扩散效果一般;总体来看,城市群发育与规划的适配性呈“东—中—西”依次减弱的空间格局,城市群发育范围虽呈扩张态势,但规划的城市群中仅有9个城市群被识别出来,其余规划的城市群仍不足以成为城市群;具体来看,区域差异明显的问题仍旧突出,识别出的城市群适配性虽逐年增强,但城市群核心城市发展、城市群发育等级、范围内城市数量等方面与城市群规划的适配性较差,具有参差不齐的特征。

SPATIAL AND TEMPORAL EVOLUTION OF URBAN AGGLOMERATION DEVELOPMENT AND PLANNING ADAPTABILITY IN CHINA

Taking 19 urban agglomerations in China and 296 cities above prefecture level as the research object, by collecting relevant data in three years from 2010 to 2019, based on the radiation field strength model, and on the basis of identifying the development pattern of urban agglomerations, this paper compares and analyzes the development of urban agglomerations with the urban agglomeration planning issued by government departments at all levels, this paper summarizes the current situation, temporal and spatial evolution law and current situation of the adaptability between the development and planning of urban agglomeration in China. The results show that from 2010 to 2019, the urban nodularity index has the gradient characteristics closely related to the administrative level, and the overall radiation diffusion effect of a few national and regional urban agglomerations is general in the planning period; Generally speaking, the adaptability of urban agglomeration development and planning shows a spatial pattern of "East Middle West" weakening in turn.