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首页> 外文期刊>Estuarine Coastal and Shelf Science >Gravel seeding - A suitable technique for restoring the seabed following marine aggregate dredging?
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Gravel seeding - A suitable technique for restoring the seabed following marine aggregate dredging?

机译：砾石播种-在疏aggregate海洋骨料后恢复海床的合适技术吗？

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摘要

Restoration of offshore marine habitats is a relatively new concept, with attempts in the European Union being largely instigated by requirements of various strategic directives. In this experiment, we investigate the practicality and effectiveness of gravel seeding, using a commercial aggregate dredging vessel, in order to recreate a gravel habitat. The experimental design consisted of a Treatment and Control site, both within an area of historic dredging characterised by an overburden of sand, and a gravel dominated Reference site. All sites were surveyed, using a combination of acoustic, camera and grab techniques, 2 months before, and then at 0,12 and 22 months after the deposition of 4444 m~3 of gravel dominated sediments within the Treatment site. Although financial and practical constraints limited replication of the Treatment to one area, and so precluded strong statistical conclusions, our results suggested that the technique was both practically feasible, and successful in terms of returning the physical and biological attributes at the Treatment site to a state more representative of gravelly substrata in the wider, un-impacted environment.
机译：恢复近海海洋生境是一个相对较新的概念，在欧洲联盟的尝试在很大程度上受到各种战略指令要求的鼓动。在此实验中，我们使用商业集料疏vessel船调查砾石播种的实用性和有效性，以重建砾石栖息地。实验设计包括一个处理和控制站点，两个站点都位于以沙子覆盖层为特征的历史性疏ging区域，以及一个以砾石为主的参考站点。在处理场地内沉积了4444 m〜3砾石为主的沉积物之前，两个月之前，然后在0.12和22个月，使用声学，相机和抓斗技术相结合的方法对所有场地进行了调查。尽管财务和实际限制因素限制了该治疗方法在一个地区的重复应用，因此排除了强有力的统计结论，但我们的研究结果表明，该技术既切实可行，又成功地将治疗部位的物理和生物学特性恢复为一个状态。在更广泛，不受影响的环境中更能代表砾石层。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2011年第1期|p.121-132|共12页
  • 作者

    Keith Cooper; Suzanne Ware; Koen Vanstaen; Jon Barry;

  • 作者单位

    The Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory, Pakefleld Road, Lowestoft, Suffolk NR33 OUT, UK;

    The Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory, Pakefleld Road, Lowestoft, Suffolk NR33 OUT, UK;

    The Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory, Pakefleld Road, Lowestoft, Suffolk NR33 OUT, UK;

    The Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory, Pakefleld Road, Lowestoft, Suffolk NR33 OUT, UK;

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  • 正文语种 eng
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  • 关键词

    restoration; seabed; aggregate; dredging; benthos; north sea;

    机译：恢复;海床;骨料;疏d;底栖动物;北海;

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