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<p>Addressing global flood challenges necessitates integrating socio-economic systems (SES) and natural ecosystems (NES). This study uses a grid-scale "resistance-response-recovery" framework to assess flood resilience in China’s coastal areas. Findings reveal spatial divergence: NES resilience is high in northeast/southwest regions and low in plains, while SES resilience concentrates in developed cities, showing a "U-shaped" recovery trend. Applying an enhanced coupling coordination degree (CCD) model, we found a distinct "U-shaped" pattern in system coordination over time. High coordination correlates with advanced urban drainage infrastructure, contrasting with low coordination in agricultural plains. The study classifies the area into four specific management zones: high level coordination area, high natural ecological resilience area, low level incoordination area, and high socio-economic resilience area. This work offers an innovative framework and practical insights for scientific flood resilience assessment.</p>

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Confrontation or symbiosis? coupling coordination analysis and spatiotemporal heterogeneity of flood resilience in China's Coastal Areas: socio-economic and natural-ecological perspective

  • 期刊论文

  • 发表日期：

    2026年4月25日

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  • Xinyuan Li,
  • Bo Li

摘要

Addressing global flood challenges necessitates integrating socio-economic systems (SES) and natural ecosystems (NES). This study uses a grid-scale "resistance-response-recovery" framework to assess flood resilience in China’s coastal areas. Findings reveal spatial divergence: NES resilience is high in northeast/southwest regions and low in plains, while SES resilience concentrates in developed cities, showing a "U-shaped" recovery trend. Applying an enhanced coupling coordination degree (CCD) model, we found a distinct "U-shaped" pattern in system coordination over time. High coordination correlates with advanced urban drainage infrastructure, contrasting with low coordination in agricultural plains. The study classifies the area into four specific management zones: high level coordination area, high natural ecological resilience area, low level incoordination area, and high socio-economic resilience area. This work offers an innovative framework and practical insights for scientific flood resilience assessment.