Historical Analysis Exposes Catastrophic Seagrass Loss for the United Kingdom.

Historical Analysis Exposes Catastrophic Seagrass Loss for the United Kingdom.
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DOI:
10.3389/fpls.2021.629962
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发表时间:
2021
影响因子:
5.6
通讯作者:
Jones PJS
Jones PJS
中科院分区:
生物学2区
文献类型:
--
作者:
Green AE;Unsworth RKF;Chadwick MA;Jones PJS

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海草的空间范围没有得到很好的测绘,对历史损失的了解也很有限。在这里,我们整理了经验和定性数据,采用系统的回顾方法,提供独特的分析海草的发生和损失在英国。自1998年以来,我们记录了8,493公顷最近在英国绘制的海草。这相当于约0.9百万吨的碳,在目前的碳市场上约为2200万英镑。使用简单的模型来估计海草下降三角对栖息地适宜性模型,我们提供了灾难性的海草损失的证据,至少有44%的英国的海草已经失去了自1936年以来,39%自20世纪80年代。然而,在较长的时间跨度上的损失可能高达92%。根据这些估计,历史上的海草草甸可以储存11.5吨碳,并支持大约4亿条鱼。我们的研究结果显示了损失的巨大规模,并强调了恢复海草以支持一系列生态系统服务的机会。
The spatial extent of seagrass is poorly mapped, and knowledge of historical loss is limited. Here, we collated empirical and qualitative data using systematic review methods to provide unique analysis on seagrass occurrence and loss in the United Kingdom. We document 8,493 ha of recently mapped seagrass in the United Kingdom since 1998. This equates to an estimated 0.9 Mt of carbon, which, in the current carbon market represents about £22 million. Using simple models to estimate seagrass declines triangulated against habitat suitability models, we provide evidence of catastrophic seagrass loss; at least 44% of United Kingdom’s seagrasses have been lost since 1936, 39% since the 1980’s. However, losses over longer time spans may be as high as 92%. Based on these estimates, historical seagrass meadows could have stored 11.5 Mt of carbon and supported approximately 400 million fish. Our results demonstrate the vast scale of losses and highlight the opportunities to restore seagrass to support a range of ecosystems services.
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