Measuring the role of seagrasses in regulating sediment surface elevation.
Measuring the role of seagrasses in regulating sediment surface elevation.
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DOI：
10.1038/s41598-017-12354-y
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发表时间：
2017-09-20
影响因子：
4.6
通讯作者：
Huxham M
中科院分区：
文献类型：
--
作者：
Potouroglou M;Bull JC;Krauss KW;Kennedy HA;Fusi M;Daffonchio D;Mangora MM;Githaiga MN;Diele K;Huxham M
海草草甸提供了众多的生态系统服务，它们在全球范围内的迅速丧失可能会降低人类福祉和生态完整性。与其他“蓝碳”栖息地（红树林和潮汐沼泽）一样，海草被认为提供海岸防御，并促进沉积物稳定和表面升高。通过长期监测位于不同水文地貌条件下的各种不同地点，对红树林和潮汐沼泽的沉积物上升动态有了深入的了解。相比之下，类似的证据海草是稀疏的，本研究是对填补这一空白的贡献。在苏格兰、肯尼亚、坦桑尼亚和沙特阿拉伯这四个地点，在低潮带和浅潮下带的海草和无植被对照地块中，部署了表面高程变化针。海草的存在有一个非常显着的，积极的影响，在所有网站的表面海拔。目前的工作和文献的综合数据显示，植被和无植被地区之间的海拔率每年平均相差31毫米，这强调了海草在促进沉积物表面升高和减少侵蚀方面的重要贡献。本文介绍了第一个多站点的研究沉积物表面海拔在不同的设置和物种的海草。
Seagrass meadows provide numerous ecosystem services and their rapid global loss may reduce human welfare as well as ecological integrity. In common with the other ‘blue carbon’ habitats (mangroves and tidal marshes) seagrasses are thought to provide coastal defence and encourage sediment stabilisation and surface elevation. A sophisticated understanding of sediment elevation dynamics in mangroves and tidal marshes has been gained by monitoring a wide range of different sites, located in varying hydrogeomorphological conditions over long periods. In contrast, similar evidence for seagrasses is sparse; the present study is a contribution towards filling this gap. Surface elevation change pins were deployed in four locations, Scotland, Kenya, Tanzania and Saudi Arabia, in both seagrass and unvegetated control plots in the low intertidal and shallow subtidal zone. The presence of seagrass had a highly significant, positive impact on surface elevation at all sites. Combined data from the current work and the literature show an average difference of 31 mm per year in elevation rates between vegetated and unvegetated areas, which emphasizes the important contribution of seagrass in facilitating sediment surface elevation and reducing erosion. This paper presents the first multi-site study for sediment surface elevation in seagrasses in different settings and species.
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影响因子：
1.1
作者：
Cann, JH;Belperio, AP;Murray-Wallace, CV
通讯作者：
Murray-Wallace, CV
影响因子：
2.2
作者：
DOTY, MS
通讯作者：
DOTY, MS
影响因子：
2.8
作者：
Gacia, E;Duarte, CM;Tri, NH
通讯作者：
Tri, NH
影响因子：
2.8
作者：
Ganthy, F.;Sottolichio, A.;Verney, R.
通讯作者：
Verney, R.
影响因子：
2
作者：
Cahoon, DR;Lynch, JC;Hensel, P
通讯作者：
Hensel, P