转型期煤炭资源型城市空间重构——以淮南市、淮北市为例

以淮南市、淮北市4次城市规划中土地利用现状图为基础,运用ArcGIS软件对案例城市空间结构演化进程进行可视化表达和计量分析,揭示了煤炭资源型城市空间结构演化的过程、特征。通过对不同时点、不同用地类型的叠置分析,基于城市主要用地类型间的置换规模、频度、广度、强度及空间邻近关系,总结出商—居置换重构、商—工置换重构、居—工置换重构、工—居置换重构4种空间重构模式。当前,煤炭资源型城市以商—居置换重构和居—工置换重构为主,其空间置换面积大、频率高。最后,分析了经济发展、产业演替、体制改革、城市化、环境保护以及城市规划6个因素对煤炭资源型城市空间重构的影响,认为煤炭资源型城市内部空间重构是一种自我修复过程。

Spatial reconstruction of the coal resource-based city during the transition period: A case study of Huainan city and Huaibei city

Based on charts of four present urban planning land uses in Huainan city and Huaibei city, and with the aid of Arcgis software, the process and features of the urban spatial structural evolution in coal source-based cities are disclosed by performing visualization presentation and quantitative analysis on the process of spatial structural evolution in the two cities. By overlaying analysis on different time points and different types of land use, four spatial reconstruction patterns are summarized based on the replacement scales, frequencies, extents, intensities and spatial adjacent relations between the main types of land uses in the cities, i.e., replacement and reconstruction of commercial—residential lands, replacement and reconstruction of commercial—industrial lands, replacement and reconstruction of residential—industrial lands, and replacement and reconstruction of industrial—residential lands. It is indicated that the present coal source-based cities mainly focus on the replacements and reconstructions of commercial—residential lands and those of residential—industrial lands due to their large replacement areas and high frequencies. In conclusion, the influences on the spatial reconstructions in coal source-based cities have been analyzed in six aspects, i.e. economic development, industrial succession, system reformation, urbanization, environmental protection and urban planning. The internal spatial reconstruction is believed to be a self-repairment process for the coal source-based cities.