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Constructing an Ecological Security Pattern Coupled with Climate Change and Ecosystem Service Valuation: A Case Study of Yunnan Province

Author

Listed:
  • Yilin Lin

    (Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
    Natural Resources Intelligent Governance Industry–University–Research Integration Innovation Base, Kunming University of Science and Technology, Kunming 650093, China)

  • Fengru Liu

    (Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
    Natural Resources Intelligent Governance Industry–University–Research Integration Innovation Base, Kunming University of Science and Technology, Kunming 650093, China)

  • Zhiyuan Ma

    (Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
    Natural Resources Intelligent Governance Industry–University–Research Integration Innovation Base, Kunming University of Science and Technology, Kunming 650093, China)

  • Junsan Zhao

    (Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
    Natural Resources Intelligent Governance Industry–University–Research Integration Innovation Base, Kunming University of Science and Technology, Kunming 650093, China)

  • Han Xue

    (Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
    Natural Resources Intelligent Governance Industry–University–Research Integration Innovation Base, Kunming University of Science and Technology, Kunming 650093, China)

Abstract

Ecosystem services provide the scientific foundation and optimization objectives for constructing ecological security patterns, and their spatial characteristics directly affect planning decisions such as ecological source identification and corridor layout. However, current methods for constructing ecological security patterns rely excessively on static spatial optimization of landscape structure and ecological processes, while overlooking the dynamic variations in ecosystem service values under climate change. Taking Yunnan Province as a case study, this paper calculates ecosystem service values, analyzes their spatiotemporal variations, and based on ecosystem service value hotspots, applies the MSPA model and circuit theory to identify ecological sources, corridors, pinch points, barrier areas, and improvement areas. On this basis, we construct and optimize the ecological security pattern of Yunnan Province and propose ecological protection strategies. The results show that: (1) From 2000 to 2030, ecosystem service values in Yunnan exhibit significant spatiotemporal heterogeneity. From 2000 to 2020, they first declined and then increased, with aquatic ecosystems contributing the most. Under future climate scenarios, ecosystem service values continue to increase, with the greatest growth under the SSP2-4.5 scenario. The spatial pattern is characterized by higher values in the central region and lower values in the eastern and western areas. (2) In 2020, 56 ecological sources were identified; under the SSP1-1.9 scenario, 61 were identified, while 57 were identified under both SSP2-4.5 and SSP5-8.5 scenarios. These sources are mainly distributed in northwestern Yunnan and the Nujiang and Lancang River basins, presenting a “more in the west, fewer in the east” pattern. (3) In 2020, 132 ecological corridors and 74 pinch points were identified. By 2030, under SSP1-1.9, there are 149 corridors and 84 pinch points; under SSP2-4.5, 135 corridors and 55 pinch points; and under SSP5-8.5, 134 corridors and 60 pinch points. (4) By integrating results across multiple scenarios, an ecological security pattern characterized as “three screens, two zones, six corridors, and multiple points” is constructed. Based on regional ecological background characteristics, differentiated strategies for ecological security protection of territorial space are proposed. This study provides a scientific reference for the synergistic optimization of ecosystem services and ecological security patterns under climate change.

Suggested Citation

  • Yilin Lin & Fengru Liu & Zhiyuan Ma & Junsan Zhao & Han Xue, 2025. "Constructing an Ecological Security Pattern Coupled with Climate Change and Ecosystem Service Valuation: A Case Study of Yunnan Province," Sustainability, MDPI, vol. 17(20), pages 1-29, October.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:20:p:9193-:d:1773122
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    References listed on IDEAS

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