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Construction of Ecological Corridors in Karst Areas Based on Ecological Sensitivity and Ecological Service Value

Author

Listed:
  • Yi-Xuan Liang

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Da-Fang Wu

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Zhao-Jun Wu

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Yue Xu

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Zi-Wen Zhu

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Yu-Cheng Zhang

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Hong Zhu

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

Abstract

Ecological corridors play a key role in promoting the flow of ecological processes, guaranteeing ecological function services and maintaining biodiversity. Based on ecological sensitivity and ecological service values, ecological corridors in typical karst areas of Ningyuan County were constructed to lay the foundation for ecological environmental protection and land development and utilization in the county. Based on the current land use situation in 2020, the ecological source sites were identified by the combined results of ecological sensitivity evaluation and ecosystem service value analysis, and then potential corridors were generated based on the minimum cumulative resistance model (MCR) and the minimum cost path method, and key corridors were identified by the gravity model. The results show that (1) the areas exhibiting strong sensitivity are concentrated within regions characterized by better ecological environment quality; the ecosystem service value and ecological sensitivity have a similar distribution pattern, and those with high ecological value are mainly distributed in areas with better habitat quality such as woodlands and along water systems. (2) The total area of ecological source land in Ningyuan County is 879.14 km², accounting for 35.15% of the county area, mainly distributed in the south and north of the county. (3) There are nine ecological corridors in Ningyuan County, which are radially distributed in a spider-web manner, five important ecological corridors and four general ecological corridors, with total lengths of 96 km and 120.87 km, respectively.

Suggested Citation

  • Yi-Xuan Liang & Da-Fang Wu & Zhao-Jun Wu & Yue Xu & Zi-Wen Zhu & Yu-Cheng Zhang & Hong Zhu, 2023. "Construction of Ecological Corridors in Karst Areas Based on Ecological Sensitivity and Ecological Service Value," Land, MDPI, vol. 12(6), pages 1-16, June.
    • Handle: RePEc:gam:jlands:v:12:y:2023:i:6:p:1177-:d:1162727
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    References listed on IDEAS

    as
    1. Mudahir Ozgul & Turgay Dindaroglu, 2021. "Multi-criteria analysis for mapping of environmentally sensitive areas in a karst ecosystem," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(11), pages 16529-16559, November.
    2. Yanyan Li & Xinhao Wang & Xiaofeng Dong, 2021. "Delineating an Integrated Ecological and Cultural Corridor Network: A Case Study in Beijing, China," Sustainability, MDPI, vol. 13(1), pages 1-24, January.
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    Cited by:

    1. Fengyu Wang & Shuai Tong & Yun Chu & Tianlong Liu & Xiang Ji, 2023. "Spatio-Temporal Evolution of Key Areas of Territorial Ecological Restoration in Resource-Exhausted Cities: A Case Study of Jiawang District, China," Land, MDPI, vol. 12(9), pages 1-25, September.

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