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A quantitative assessment of ecological impacts during waterway construction is crucial for guiding the formulation of subsequent ecological restoration plans. Based on ecological surveys conducted in 2022 and 2024, we developed ecological dynamics models for the Sulian waterway to analyze aquatic ecosystem structure during pre-construction and under-construction phases. The results revealed that the ecosystem's total throughput during construction decreased to 60.96% of pre-construction levels, while energy transfer efficiency showed a slight increase. However, both ecosystem maturity and stability were significantly reduced, demonstrating substantial construction impacts on the aquatic ecosystem. Key functional groups were identified as culter fish, other benthic organisms, and phytoplankton. To restore ecosystem stability, we recommend implementing measures such as fish and benthic organism stock enhancement programs, along with controlling external nutrient inputs.

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Quantitative Analysis of Coastal Waterway Construction Impact Based on Ecological Dynamics Model

  • 会议论文

  • 发表日期：

    2026年

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  • Xia Shen,
  • Feng Liu,
  • Lingling Bai,
  • Qing Luo,
  • Xiaohua Wu

摘要

A quantitative assessment of ecological impacts during waterway construction is crucial for guiding the formulation of subsequent ecological restoration plans. Based on ecological surveys conducted in 2022 and 2024, we developed ecological dynamics models for the Sulian waterway to analyze aquatic ecosystem structure during pre-construction and under-construction phases. The results revealed that the ecosystem's total throughput during construction decreased to 60.96% of pre-construction levels, while energy transfer efficiency showed a slight increase. However, both ecosystem maturity and stability were significantly reduced, demonstrating substantial construction impacts on the aquatic ecosystem. Key functional groups were identified as culter fish, other benthic organisms, and phytoplankton. To restore ecosystem stability, we recommend implementing measures such as fish and benthic organism stock enhancement programs, along with controlling external nutrient inputs.