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A research on urban eco-security evaluation and analysis: complex system's brittle structure model
1School of Economics and Management, South China Normal University, No. 378 Waihuan Road, University Campus, Panyu District, Guangzhou, 510631, China.
Environmental Science and Pollution Research International
|April 28, 2020
Summary
Urban ecological security is vital. This study uses complex system brittleness and set pair theory to analyze urban risks, finding natural subsystems pose the greatest threat, requiring integrated management for ecological security.
Area of Science:
- Ecology
- Environmental Science
- Urban Planning
Background:
- Urban ecosystems are crucial for ecological security and global attention.
- Urban ecological security evaluation requires complex system perspectives.
- Understanding urban ecological security is essential for sustainable development.
Purpose of the Study:
- To identify improvement spaces in urban ecological security evaluation.
- To analyze urban ecological security using complex system brittleness theory.
- To evaluate urban ecological safety through empirical case studies.
Main Methods:
- Brittle structure model and set pair theory.
- Complex system brittleness analysis (brittle factors, primitives, structure).
- Urban ecological system brittleness correlation entropy model and set pair analysis.
Main Results:
- The natural subsystem exhibits the highest brittle correlation entropy in urban ecological security.
- Natural subsystem collapse risks can trigger overall urban system brittleness.
- The economic subsystem shows maximum brittle fluctuation entropy, impacting urban ecosystem entropy the most.
Conclusions:
- Reducing uncertainty in urban ecological risks involves lowering the difference degree coefficient.
- Decision-makers should reduce entropy increase and brittle factor fluctuations.
- Integrated management considering natural, economic, and social subsystems is necessary for ecological security construction.
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