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首页> 外文期刊>Helgoland marine research >Policy plans and management measures to restore eelgrass (Zostera marina L.)in the Dutch Wadden Sea
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Policy plans and management measures to restore eelgrass (Zostera marina L.)in the Dutch Wadden Sea

机译:在荷兰瓦登海恢复鳗鱼草(Zostera marina L.)的政策计划和管理措施

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摘要

The Dutch Wadden Sea has been changed dra-matically over the last centuries by human activities like land reclamation and different forms of fishery. This has, amongst other things, led to changes in the number of bi-ological communitics. One of the changes was the near extinction of ecigrass (Zastera marina L.) in the Dutch Wadden Sea. The deterioration of the area led to policy plans in the late 1980s that aimed at restoring the origi-nal natural communities of which the eelgrass communi-ty was one. This paper presents a restoration strategy which contains a selection procedure for suitable trans-plantation sites. The selection procedure is based on fac-tors such as sediment composition, exposure time, cur-rent velocity and wave action. These were combined in a GIS-based map integrating these factors. One important action in the restoration process is to increasc the num-ber of freshwater discharge points to meet the require-ments of the brackish water community in general and the growing conditions for eelgrass in particular.
机译:在过去的几个世纪中,荷兰人的瓦登海已因人类活动(例如开垦土地和各种形式的渔业)而发生了戏剧性的变化。除其他外,这导致了生物通信数量的变化。变化之一是荷兰瓦登海的松柏(Zastera marina L.)濒临灭绝。该地区的恶化导致了1980年代后期的政策计划,该计划旨在恢复原始的自然社区,而鳗草社区就是其中之一。本文提出了一种修复策略,其中包括针对合适的移植地点的选择程序。选择程序基于诸如沉积物成分,暴露时间,电流速度和波浪作用等因素。将这些组合在基于GIS的地图中,整合了这些因素。恢复过程中的一项重要行动是增加淡水排放点的数量,以满足一般咸淡水社区的需求,尤其是满足鳗鱼生长条件的需求。

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