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As the critical transitional zone connecting the Xiaoqing River inland waterway with Laizhou Bay, the sediment deposition dynamics in the Xiaoqing River Estuary exert significant impacts on navigability conditions. This study systematically analyzes the sediment and hydrodynamic characteristics of the Xiaoqing River Estuary and its adjacent southwestern waters of Laizhou Bay, synthesizing sediment types, composition, sources, suspended sediment concentrations and multi-decadal geomorphological changes. The research further examines the influence of human activities on shoreline evolution over the past four decades, revealing that intensive anthropogenic interventions have substantially altered sediment transport patterns and hydrodynamic conditions, resulting in shoreline progradation and a reduction in natural shorelines. However, given the complex interplay of dynamic factors and sediment movement mechanisms governing estuarine channel siltation, future investigations should employ numerical simulations and physical model experiments to scientifically inform strategies for estuarine channel management and conservation.

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Human-Dominated Sediment Erosion and Coastal Shoreline Evolution at the Xiaoqing River Estuary

  • 会议论文

  • 发表日期：

    2026年

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  • Zhangwei Liu,
  • Jian Liang,
  • Changhui Gao,
  • Xinghua Zhang,
  • Jia Li

摘要

As the critical transitional zone connecting the Xiaoqing River inland waterway with Laizhou Bay, the sediment deposition dynamics in the Xiaoqing River Estuary exert significant impacts on navigability conditions. This study systematically analyzes the sediment and hydrodynamic characteristics of the Xiaoqing River Estuary and its adjacent southwestern waters of Laizhou Bay, synthesizing sediment types, composition, sources, suspended sediment concentrations and multi-decadal geomorphological changes. The research further examines the influence of human activities on shoreline evolution over the past four decades, revealing that intensive anthropogenic interventions have substantially altered sediment transport patterns and hydrodynamic conditions, resulting in shoreline progradation and a reduction in natural shorelines. However, given the complex interplay of dynamic factors and sediment movement mechanisms governing estuarine channel siltation, future investigations should employ numerical simulations and physical model experiments to scientifically inform strategies for estuarine channel management and conservation.