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Ecological Security Pattern Construction in Hilly Areas Based on SPCA and MCR: A Case Study of Nanchong City, China

Author

Listed:
  • Chunxiao Zhang

    (Sichuan Institute of Land and Spatial Planning, #11 MaanRoad, Jinniu District, Chengdu 610084, China)

  • Chun Jia

    (Sichuan Institute of Land and Spatial Planning, #11 MaanRoad, Jinniu District, Chengdu 610084, China)

  • Huanggen Gao

    (Sichuan Institute of Land and Spatial Planning, #11 MaanRoad, Jinniu District, Chengdu 610084, China)

  • Shiguang Shen

    (College of Landscape Architecture, Nanjing Forestry University, #159 Longpan Road, Xuanwu District, Nanjing 210037, China)

Abstract

Urban expansion is constantly encroaching upon and destroying ecological spaces, and the construction of an ecological security pattern with the goal of ensuring ecological security has become a problem that must be considered during urban development. At present, little attention is paid to hilly cities. In this paper, Nanchong City, a typical hilly city, is selected as the research object, and the classic “source–corridor–node” paradigm is adopted to construct the ecological security pattern of Nanchong City. First, the core ecological protection area is taken as the ecological source. Secondly, the index of the ecological resistance surface is selected, and the weight of the index is determined by using the spatial principal component analysis (SPCA) method to construct the ecological resistance surface. The results show that the area of low-resistance biological migration in Nanchong City equals 854 km 2 , which accounts for 6.86% of the total area. Secondly, based on the minimum cumulative resistance (MCR) model, 34 potential ecological corridors and 41 ecological strategic nodes are identified. Finally, ideas for how to the prioritize ecological security pattern construction in Nanchong City are put forward to provide a reference for the construction of ecological security patterns in hilly cities.

Suggested Citation

  • Chunxiao Zhang & Chun Jia & Huanggen Gao & Shiguang Shen, 2022. "Ecological Security Pattern Construction in Hilly Areas Based on SPCA and MCR: A Case Study of Nanchong City, China," Sustainability, MDPI, vol. 14(18), pages 1-21, September.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:18:p:11368-:d:911686
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    Citations

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    Cited by:

    1. Liang Lv & Shihao Zhang & Jie Zhu & Ziming Wang & Zhe Wang & Guoqing Li & Chen Yang, 2022. "Ecological Restoration Strategies for Mountainous Cities Based on Ecological Security Patterns and Circuit Theory: A Case of Central Urban Areas in Chongqing, China," IJERPH, MDPI, vol. 19(24), pages 1-21, December.
    2. Jia Xu & Dawei Xu & Chen Qu, 2022. "Construction of Ecological Security Pattern and Identification of Ecological Restoration Zones in the City of Changchun, China," IJERPH, MDPI, vol. 20(1), pages 1-20, December.
    3. Shaobo Liu & Yiting Xia & Yifeng Ji & Wenbo Lai & Jiang Li & Yicheng Yin & Jialing Qi & Yating Chang & Hao Sun, 2023. "Balancing Urban Expansion and Ecological Connectivity through Ecological Network Optimization—A Case Study of ChangSha County," Land, MDPI, vol. 12(7), pages 1-21, July.
    4. Shan Ke & Hui Pan & Bowen Jin, 2023. "Identification of Priority Areas for Ecological Restoration Based on Human Disturbance and Ecological Security Patterns: A Case Study of Fuzhou City, China," Sustainability, MDPI, vol. 15(3), pages 1-26, February.
    5. Xinlei Xu & Siyuan Wang & Gege Yan & Xinyi He, 2023. "Ecological Security Assessment Based on the “Importance–Sensitivity–Connectivity” Index and Pattern Construction: A Case Study of Xiliu Ditch in the Yellow River Basin, China," Land, MDPI, vol. 12(7), pages 1-23, June.

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