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Regional Ecological Security Assessment Based on the Pressure–State–Response Framework: The Demonstration Zone of Yangtze River Delta as an Example

Author

Listed:
  • Enhui Ren

    (School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China)

  • Wenpeng Lin

    (School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China
    Yangtze River Delta Urban Wetland Ecosystem National Field Observation and Research Station, Shanghai 200234, China)

  • Bo Li

    (School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China)

  • Yue Jiang

    (School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China)

  • Yuxun Zhang

    (School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China)

  • Yan Yu

    (School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China)

Abstract

Ecological security is related to human well-being, is closely linked to a region’s sustainable development, and is an essential cornerstone of any national security system. The Demonstration Zone of Green and Integrated Ecological Development (DZGIED) of the Yangtze River Delta is a critical point in implementing the integrated development strategy of the Yangtze River Delta. This paper used the Pressure–State–Response (PSR) framework to evaluate the regional ecological security (RES) in the DZGIED based on multi-source remote sensing and GIS data. And the analysis was conducted from the overall and administrative division perspective. The results show that (1) from 2000 to 2020, the ecological security of the DZGIED shows a slight decline overall. The RES decreased from 0.60 to 0.53. The RES level is kept above the critical security level and needs further improvement. (2) Significant differences in the RES across townships, with more pronounced changes in extreme values. The ecological security status of more than 80% of the townships shows solid positive spatial correlations. The ecological security of the DZGIED is more critical to the central area. (3) Human disturbance is the most important factor causing the decline in ecological security and the impact of environmental safety on the central area is more enormous. (4) The ecological security state of the DZGIED shows an improving trend, but it is still necessary to promote the construction of various demonstration projects. This paper aims to ensure the sustainable development of the DZGIED in the future and to provide guidance for policy formulation on ecological safety in the DZGIED from the perspective of administrative divisions. It also provides a reference for small-scale regional ecological safety evaluation studies such as townships.

Suggested Citation

  • Enhui Ren & Wenpeng Lin & Bo Li & Yue Jiang & Yuxun Zhang & Yan Yu, 2024. "Regional Ecological Security Assessment Based on the Pressure–State–Response Framework: The Demonstration Zone of Yangtze River Delta as an Example," Land, MDPI, vol. 13(1), pages 1-21, January.
    • Handle: RePEc:gam:jlands:v:13:y:2024:i:1:p:96-:d:1319320
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    References listed on IDEAS

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