Ziyuan Kexue (Mar 2024)
Spatiotemporal change and driving factors of land urbanization in coal resource-based counties:A case study of Suixi County, Huaibei City
Abstract
[Objective] Revealing the process and characteristics of land urbanization in coal resource-based counties, in order to provide a scientific basis for their spatial planning and intensive land use. [Methods] Taking Suixi County, a typical coal resource-based county, as a case study area, and based on remote sensing data and socioeconomic development data, landscape pattern index, expansion index, buffer zone analysis, and bivariate analysis, this study examined the spatiotemporal change characteristics of land urbanization in SuiXi County from 1950 to 2020, and then analyzed its driving factors. [Results] (1) Land urbanization in coal resource-based counties can be divided into three stages: town built due to coal resources, co-construction of a mining town, and integration of industry and city development, and the relationship between land urbanization and coal resources is “dependent-restricting-transcending”. (2) The period from 1950 to 1997 was the stage of “town built due to coal resources” and “co-construction of a mining town”, the urban construction land was distributed based on the location of the mines, and later extended on the basis of the original distribution; the growth of urban construction land changed from low-speed unbalanced to medium-speed unbalanced, and the county functional areas were mainly industrial, residential, and commercial. The period from 1998 to 2020 was the stage of “integration of industry and city development”, urban construction land mainly expanded in the periphery where new districts were built, showing a state of high-speed intensive development, and the county functional areas showed diversified development. (3) Land urbanization in coal resource-based counties is formed under the long-term action of many factors, and the dominant factors are different in different development stages. Among them, coal resources and location conditions are the basic driving forces, economic development and population growth are the direct driving forces, and development strategy and the policy system have the characteristics of short-term stability and sudden change. [Conclusion] At the stages of “town built due to coal resources” and “co-construction of mining town”, the development of land urbanization benefited from the development and utilization of coal resources. At the stage of “integration of industry and city development”, the development of land urbanization was significantly constrained by resource depletion and coal mining subsidence areas. Therefore, in order to achieve sustainable development in the urbanization of coal resource-based counties in the future, ecological restoration must be the primary task, and an intensive land use mechanism must be established.
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