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首页> 外文期刊>Gulf and Caribbean research >DO SMALL, PATCHY, CONSTRUCTED INTERTIDAL OYSTER REEFS REDUCE SALT MARSH EROSION AS WELL AS NATURAL REEFS?
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DO SMALL, PATCHY, CONSTRUCTED INTERTIDAL OYSTER REEFS REDUCE SALT MARSH EROSION AS WELL AS NATURAL REEFS?

机译：小型，片状，构造的牡蛎牡蛎减少是否减轻盐沼侵蚀以及自然减少？

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One ecological service that oyster reefs provide is stabilization of shorelines through reduced wave energy and erosion from boat traffic, storms, and predominant wind direction. Additionally, increasing sedimentation can enhance the growth of emergent marsh vegetation which further stabilizes unconsolidated sediments. A 21 mo study of constructed (with only 30-35% coverage) and natural oyster reefs in 3 bayous in the Grand Bay National Estuarine Research Reserve (NERR) suggested constructed reefs benefit this retrograding deltaic ecosystem. The marsh edge adjacent to all constructed reefs was less eroded (mean = 0.043 m) than edges adjacent to natural reefs (mean = 0.728 m), although all natural and constructed sites, regardless of bayou, illustrated large variations in marsh edge growth. The marsh edge in constructed sites in one bayou retreated more than in the other bayous, most likely due to its coarser sediments, greater boat traffic, and its apparent higher energy location within the landscape. By the end of this study, the ecological function of constructed oyster reefs in all bayous, as measured by marsh edge erosion reduction, was equivalent or exceeded the function in nearby natural oyster reefs. The physical structure of the reef further served to reduce erosion and marsh loss and this approach may be useful for management of a retrograding deltaic estuarine ecosystem like the Grand Bay NERR.
机译：牡蛎礁提供的一种生态服务是通过减少波浪能和减少船只交通，暴风雨以及主要风向的侵蚀来稳定海岸线。另外，增加的沉积可以促进新兴沼泽植被的生长，从而进一步稳定未固结的沉积物。对大湾国家河口研究保护区（NERR）的3个海湾地区的人工牡蛎礁（仅覆盖30-35％）和天然珊瑚礁进行的21个月研究表明，人工珊瑚礁有利于这种退化的三角洲生态系统。与所有自然礁石相邻的沼泽边缘（均值= 0.043 m）比与自然礁石相邻的沼泽边缘（均值= 0.728 m）受到的侵蚀要小，尽管所有自然和人工构造地点，无论bayou是什么，都说明沼泽边缘的生长变化很大。一个ba尤的人工地的沼泽边缘比另一个海湾生境的沼泽边缘更容易退缩，这很可能是由于其沉积物较粗，船流量较大以及景观中明显的较高能量位置所致。到本研究结束时，通过减少沼泽边缘侵蚀来衡量，所有海湾地区的人工牡蛎礁的生态功能与附近的天然牡蛎礁的功能相同或超过其功能。礁石的物理结构进一步减少了侵蚀和沼泽损失，这种方法对于管理三角洲河口生态系统退化的三角洲河口生态系统可能很有用。

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