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Ship-wake induced sediment remobilization: Effects and proposed management strategies for the Venice Lagoon

机译:船舶唤醒引起的沉积物迁移:威尼斯泻湖的影响和拟议的管理策略

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摘要

More than 3000 commercial vessels navigate through the Malamocco-Marghera Industrial Canal in Venice Lagoon, Italy in a given year, leading to an estimated annual resuspension of 1.2 x 10(6) metric tons of sediment. Hence, ship wakes contribute to the significant erosion of shoals in the central lagoon which has occurred over the last 30 years. Drawdown associated with the surface depression wave from successive ships induces sediment transport towards the shipping canal, where the cost of dredging amounts to tens of millions of Euro per year. Most ship traffic occurs near an industrial zone, resulting in substantial potential for resuspension of contaminated sediment. Thus, sediment resuspension by ship traffic in the Venice Lagoon has the potential for detrimental economic and environmental impacts.
机译:在给定的一年中,超过3000艘商用船在意大利威尼斯泻湖的马拉莫科-马尔盖拉工业运河中航行,导致每年重悬1.2 x 10(6)公吨的沉积物。因此,在过去的30年中,船尾造成了中央泻湖浅滩的严重侵蚀。与来自连续船只的表面凹陷波相关的水位下降导致沉积物向航运运河的运输,每年的疏ging成本达数千万欧元。大多数船舶运输发生在工业区附近,因此有很大的潜力重新悬浮受污染的沉积物。因此,威尼斯泻湖中船舶运输造成的泥沙重新悬浮有可能对经济和环境造成不利影响。

著录项

  • 来源
    《Ocean & coastal management》 |2015年第6期|1-11|共11页
  • 作者单位

    Univ Kiel, Cluster Excellence Future Ocean, Inst Geog, D-24118 Kiel, Germany|Sacred Heart Univ, Dept Biol, Fairfield, CT 06825 USA;

    Natl Res Council Italy Inst Marine Sci CNR ISMAR, I-30122 Venice, Italy;

    James Cook Univ, Coll Marine & Environm Sci, Townsville, Qld 4811, Australia|James Cook Univ, Ctr Trop Environm & Sustainabil Sci, Townsville, Qld 4811, Australia;

    Natl Res Council Italy Inst Marine Sci CNR ISMAR, I-30122 Venice, Italy;

    Univ Kiel, Cluster Excellence Future Ocean, Inst Geog, D-24118 Kiel, Germany;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Shipping; Sediment resuspension; Dredging; Ports; Depression waves;

    机译:航运;泥沙重悬;疏red;港口;低压波;

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