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<p>World climate change and rapid urbanization aggravate urban flooding. This study investigated the coupling relationship of the urban-water system in a specific industrial park and the optimal configuration of Low Impact Development (LID) facilities for flood mitigation. The MIKE FLOOD model (which couples 1D MIKE URBAN and 2D MIKE 21) is used to assess existing flood hazards in the study area. Results indicate that the existing system is inadequate in coping with precipitation events of specific return periods. Five LID plans (each incorporating different combinations of bioretention systems and permeable pavements) were evaluated. The Entropy Weight-TOPSIS approach was used to select the optimal LID plan. Results show that compared with the current scenario, the implementation of LID significantly improves stormwater management. Among the plans, Plan 2 (featuring extensive bioretention) achieves better regulated runoff performance, higher reasonableness, and greater environmental benefits. Tailored LID plans enhance urban resilience. Future research should be extended to other industrial parks, with dynamic indicators taken into account.</p>

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Spatial Optimization of Low-Impact Development Facilities for Sustainable Flood Management in an Industrial Park

  • 期刊论文

  • 发表日期：

    2025年12月22日

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  • Lina Shen,
  • Meihan Lin,
  • Fangyuan Zhang

摘要

World climate change and rapid urbanization aggravate urban flooding. This study investigated the coupling relationship of the urban-water system in a specific industrial park and the optimal configuration of Low Impact Development (LID) facilities for flood mitigation. The MIKE FLOOD model (which couples 1D MIKE URBAN and 2D MIKE 21) is used to assess existing flood hazards in the study area. Results indicate that the existing system is inadequate in coping with precipitation events of specific return periods. Five LID plans (each incorporating different combinations of bioretention systems and permeable pavements) were evaluated. The Entropy Weight-TOPSIS approach was used to select the optimal LID plan. Results show that compared with the current scenario, the implementation of LID significantly improves stormwater management. Among the plans, Plan 2 (featuring extensive bioretention) achieves better regulated runoff performance, higher reasonableness, and greater environmental benefits. Tailored LID plans enhance urban resilience. Future research should be extended to other industrial parks, with dynamic indicators taken into account.