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首页> 外文期刊>Ocean & coastal management >Restoration versus natural regeneration in a neotropical mangrove: Effects on plant biomass and crab communities
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Restoration versus natural regeneration in a neotropical mangrove: Effects on plant biomass and crab communities

机译：新热带红树林的恢复与自然更新：对植物生物量和螃蟹群落的影响

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Mangrove restoration is a powerful tool for reconstructing degraded tropical estuaries worldwide. The level of intervention necessary for rebuilding a mangrove area is still under study because this system is quite dynamic and some degraded areas are able to recover by themselves. We compared a Restored Area planted with Rhizophora mangle and a Self-recovered Area, to investigate how they would differ in respect to their plant and crab assemblages. In each area, 10 plots were randomly sampled for measuring tree richness, density, diameter at breast height and biomass, as well as crab richness and density after five years from recover. Plant height and biomass, as well as crab density, were significantly higher in the Restored in relation to the Self-recovered Area. However, tree richness was higher in the Self-recovered Area and crab assemblage reached in five years a similar composition in assisted, naturally recovered and natural areas, showing the high resilience of this important functional group. Active planting of R. mangle propagules can significantly improve mangrove recovery in sites with high propagule predation, increasing tree biomass and accelerating the return of animal functional groups such as crabs. However, if resources for active restoration are scarce, passive recovery can be a successful low cost alternative for mangrove restoration that preserves tree diversity and crab assemblages. (C) 2015 Elsevier Ltd. All rights reserved.
机译：红树林恢复是重建全世界退化的热带河口的有力工具。重建红树林地区所需的干预水平仍在研究中，因为该系统非常动态，某些退化地区能够自行恢复。我们比较了种植根瘤菌的恢复区和自我恢复区，以研究它们在植物和螃蟹组合方面的差异。在每个区域中，随机取样10个样地，以测量恢复后五年后树木的丰富度，密度，胸高和生物量的直径，以及螃蟹的丰富度和密度。与自恢复区相比，恢复区的植物高度和生物量以及螃蟹密度显着更高。但是，自我恢复区的树木丰富度更高，并且在五年内螃蟹的组合在辅助区，自然恢复区和自然区达到了相似的组成，显示了这一重要功能组的高复原力。积极种植R. mangle繁殖体可以显着改善繁殖力高的捕食地的红树林恢复，增加树木生物量，并加速诸如蟹等动物功能群的回归。但是，如果缺乏用于主动恢复的资源，那么被动恢复可能是一种成功的低成本红树林恢复替代方案，该方法可以保留树木的多样性和螃蟹的组合。 （C）2015 Elsevier Ltd.保留所有权利。

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