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Spatiotemporal Variations of Landscape Ecological Risks in a Resource-Based City under Transformation

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  • Dong Wang

    (School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221000, China
    Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology, Jiangsu Vocational Institute of Architectural Technology, Xuzhou 221000, China)

  • Xiang Ji

    (School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221000, China)

  • Cheng Li

    (School of Architecture & Design, China University of Mining and Technology, Xuzhou 221000, China)

  • Yaxi Gong

    (School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221000, China)

Abstract

The development of traditional resource-based cities requires drastic changes owing to the exhaustion of resources. During this transformation, the ecological environment of resource-based cities is threatened because of resource exploitation, in addition to the ecological risks caused by urban expansion. However, there is currently a lack of research on the evolution of ecological dangers in cities during this transformational period. Therefore, conducting relevant studies is essential to establishing a mechanism to mitigate these dangers. The present study analyzed Xuzhou, a typical resource-based city in China, as a case study. The main objective was to consider the dynamic changes in land use and ecological risks during the transformation of this resource-based city. The land-use changes in Xuzhou in 2000, 2010, and 2020 were analyzed, using the Markov model and landscape-pattern indices, allowing an ecological risk-assessment model of land-use changes to be constructed. Additionally, the spatial heterogeneity of ecological risks was evaluated by using spatial autocorrelation. The results showed that urban expansion influenced land use in Xuzhou significantly. Owing to the rapid urban expansion, the area of extremely high-risk regions increased significantly in 2010. Furthermore, the subsidence areas caused by mining had profound impacts on the region’s ecology, and early interventions for ecological restoration are needed to prevent further deterioration. During the transformation, Xuzhou’s overall ecological risks reduced gradually, which was conducive to its transition into an ecological city.

Suggested Citation

  • Dong Wang & Xiang Ji & Cheng Li & Yaxi Gong, 2021. "Spatiotemporal Variations of Landscape Ecological Risks in a Resource-Based City under Transformation," Sustainability, MDPI, vol. 13(9), pages 1-21, May.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:9:p:5297-:d:551196
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    References listed on IDEAS

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