淮海经济区城乡空间融合格局及形成机制

城乡融合发展是解决城乡差距过大、城乡不平衡不协调问题的关键举措,也是城乡动态均衡的发展过程。聚落镶嵌、交通可达、发展均衡是城乡融合发展的空间表象。基于空间视角构建城乡融合发展的评价指标体系,综合运用景观分析、可达性分析和耦合协调分析等方法揭示淮海经济区城乡空间融合发展的要素格局特征,并结合回归模型探究其形成机制。结论如下：（1）城乡空间融合是城乡结构优化的进程,可以从城乡聚落连通性、城乡交通便捷性和城乡发展均衡性等方面研判城乡空间融合发展的综合水平。（2）淮海经济区城乡空间融合发展的各要素指标存在较大差异,综合水平指标由中心向外围递减,可划分为协调融合型、协调关联型和欠协调分割型三种地域类型。（3）经济发展水平、城乡规模、产业关联是影响该区域城乡空间融合的关键动力因素,而传统农业和工业的推动作用不显著。镇域和村域尺度城乡融合发展的理论和实证研究是后续工作的重要方向。

Regional differential characteristics of urban-rural space integration development in Huaihai Economic Zone and its formation mechanism

Urban-rural integration development is the key initiative to solve the problems of excessive income gap between urban and rural areas and unbalanced and uncoordinated urban-rural development, and it is also the inevitable requirement of rural revitalization. This paper discusses the connotation of urban-rural integration development, and constructs an evaluation index system of urban-rural integration development by entropy weight method. Based on these, it reveals the characteristics of the factor pattern of urban-rural integration development in Huaihai Economic Zone in combination of the methods of landscape analysis, spatial analysis and coupling coordination analysis, and explores the influence mechanism of urban-rural integration development combined with regression model, in order to provide a theoretical reference for the urban-rural integration development in the border areas of underdeveloped provinces. The results are as follows: (1) Urban-rural integration is the process of rebuilding urban-rural relationship. The comprehensive level of urban-rural integration development can be described from the connectivity of urban-rural space, the convenience of urban-rural transportation, the balance of urban-rural public services and the livability of urban-rural ecological environment. (2) There are great differences in the indicators of urban-rural integration development in Huaihai Economic Zone. The comprehensive level index decreases from the center to the periphery. According to the spatial correlation and index coordination, Huaihai Economic Zone can be divided into three types: coordinated development region, associated development region and divided development region. (3) The level of economic development, the scale of urban-rural areas, and the industrial linkage are the key dynamic factors affecting the urban-rural integration development. However, the development of traditional agriculture and industry, as well as the urban-rural population structure, have no significant effect on regional urban-rural integration development. The theoretical and empirical research on urban-rural integration development at the scales of town and village is an important direction of follow-up work.