煤炭资源型城市城乡空间结构演变及影响因素——以安徽省淮北市为例

以淮北市为例,基于城乡建设用地和相关社会经济发展数据,运用扩张指数、相对变化率等方法,研究1985年以来煤炭资源型城市城乡空间结构演变过程及影响因素。结果表明：（1）煤炭资源型城市城乡空间结构演变大致经历了三个阶段：1985—2000年,城市发展主要围绕煤炭产业进行,形成了“城·矿·乡”三元结构;2000—2010年,城市主城区中心性逐渐凸显,城乡空间结构演变为“中心—外围”结构;2010年至今,城市转型发展速度加快,主城区向郊区扩散,城乡空间结构演变为圈层结构。（2）煤炭资源型城市城乡空间结构演变本质是由分散到集聚、由分离到一体的过程。（3）矿城管理体制、城乡产业结构、市域交通网络和政策制度四个影响因素相互作用,共同促进煤炭资源型城市城乡空间结构的发展。

The evolution process and influencing factors of urban-rural spatial structure in coal resource-based city: A case study of Huaibei city in Anhui province

This paper explored the evolution of urban-rural spatial structure in China and its influencing factors since 1985 by using the urban-rural construction land and socio-economic data, and took Huaibei, a typical coal resource-based city, as a study case. The results showed that: (1) Generally, the urban-rural spatial structure in coal resource-based city develops in three stages. Firstly, the city mainly depended on the coal industry, and formed the "urban-mining-rural" ternary structure in 1985-2000. Secondly, the urban-rural spatial structure has evolved into a "center-peripheral" structure. In addition, the centrality of the major urban area is gradually highlighted. Thirdly, the urban-rural spatial structure evolved into a circle structure in 2010-present. Moreover, the speed of city transformation and development has accelerated. And the main urban area spread to the suburbs. (2) In essence, the evolution of urban-rural spatial structure was a process from dispersion to aggregation, and from separation to integration. (3) Management system of mining city, urban-rural industrial structure, municipal transportation network and policy system interacted to promote the evolution of urban-rural spatial structure in coal resource-based cities.