Taking 11 cities in the coastal zone of East China Sea as the study area, the dynamic changes and correlations of the coupling and coordination of urbanization systems from 1978 to 2018 were explored based on the coupling coordination measurement model and gray correlation model. The results showed that the coupling and coordination of urbanization system in the study area exhibited a temporal phase and a spatial local high-value agglomeration. The characteristics of temporal phase were mainly manifested in urbanization speed, urbanization focus and urbanization balance. In 1978–2007, the urbanization level of each case city improved rapidly. The focus of urbanization was the optimization of industrial structure and the economic improvement, which were also the first to enter the coordinated development period with the urbanization rate. The coupling and coordination degree of urbanization system was significantly affected by a single key factor. In 2008–2018, the growth rate of urbanization tended to be flat, and the focus of urbanization began to shift to the improvement of the quality of development with “people”. The coupling and coordination between the two attributes of people’s livelihood quality and public service and the urbanization rate have been rapidly improved. Cities such as Shanghai and Xiamen, which have higher levels of urbanization, have entered the period of coordination and advanced coordination. The coupling and coordination of urbanization system was affected by multiple factors. The spatial local high-value agglomeration means that the coupling and coordination of urbanization system presented a development model with Shanghai, Ningbo, Fuzhou and Xiamen as the poles.

以我国东海海岸带11个城市为研究区, 基于耦合协调测度模型和灰色关联模型, 探究1978—2018年间城市化系统耦合协调的动态变化及关联度。结果表明, 研究区城市化系统的耦合协调性表现出时间上的阶段性和空间上的局部高值集聚效应。阶段性主要表现在城市化速度、侧重点及均衡度3个方面。第一阶段(1978—2007年), 城市化水平快速提升, 产业结构优化和经济水平提升是发展的重点, 并率先进入与城市化率的协调发展阶段, 城市化系统耦合协调度受单一关键因子影响的特征显著。第二阶段(2008—2018年), 城市化增速趋于平缓, 发展的重点开始转向以人为主的质量改善, 民生质量和公共服务两个属性特征与城市化率的耦合协调度迅速提升。城市化水平较高的上海和厦门等城市均进入协调和高级协调发展阶段, 城市化系统耦合协调度受多重因素影响的特征凸显。空间局部高值集聚效应表现为, 城市化系统的耦合协调度呈现以上海、宁波、福州和厦门为极点的发展模式。