气候变化领域集成服务门户(CCPortal): The global distribution of seagrass meadows

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DOI	10.1088/1748-9326/ab7d06
	The global distribution of seagrass meadows
	McKenzie L.J.; Nordlund L.M.; Jones B.L.; Cullen-Unsworth L.C.; Roelfsema C.; Unsworth R.K.F.
发表日期	2020
ISSN	17489318
卷号	15 期号:7
英文摘要	Seagrass meadows globally are under pressure with worldwide loss and degradation, but there is a growing recognition of the global importance of seagrass ecosystem services, particularly as a major carbon sink and as fisheries habitat. Estimates of global seagrass spatial distribution differ greatly throughout the published literature, ranging from 177 000 to 600 000 km2 with models suggesting potential distribution an order of magnitude higher. The requirements of the Paris Climate Agreement by outlining National Determined Contributions (NDC's) to reduce emissions is placing an increased global focus on the spatial extent, loss and restoration of seagrass meadows. Now more than ever there is a need to provide a more accurate and consistent measure of the global spatial distribution of seagrass. There is also a need to be able to assess the global spread of other seagrass ecosystem services and in their extension, the values of these services. In this study, by rationalising and updating a range of existing datasets of seagrass distribution around the globe, we have estimated with Moderate to High confidence the global seagrass area to date as 160 387 km2, but possibly 266 562 km2 with lower confidence. We break this global estimate down to a national level with a detailed analysis of the current state of mapped distribution and estimates of seagrass area per country. Accurate estimates, however, are challenged by large areas remaining unmapped and inconsistent measures being used. Through the examination of current global maps, we are able to propose a pathway forward for improving mapping of this important resource. More accurate measure of global #seagrass distribution, critical for assessing current state and trends © 2020 The Author(s). Published by IOP Publishing Ltd.
语种	英语
scopus关键词	Ecosystems; Spatial distribution; Climate agreement; Consistent measures; Ecosystem services; Global distribution; Global estimate; High confidence; Potential distributions; Seagrass meadows; Plants (botany); carbon sink; ecosystem service; emission control; habitat fragmentation; habitat loss; international agreement; meadow; seagrass; spatial distribution
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153965
作者单位	Centre for Tropical Water and Aquatic Ecosystem Research, James Cook University, Cairns, Australia; Seagrass-Watch, Cairns, QLD, Australia; Natural Resources and Sustainable Development, Department of Earth Sciences, Uppsala University, Visby, SE 621 57, Sweden; Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, SE 106 91, Sweden; Project Seagrass, 33 Park Place, Cardiff, CF10 3BA, United Kingdom; Sustainable Places Research Institute, Cardiff University, 33 Park Place, Cardiff, CF10 3BA, United Kingdom; Remote Sensing Research Centre, School of Earth and Environmental Sciences, University of Queensland, Brisbane, Australia; Seagrass Ecosystem Research Group, College of Science, Swansea University, Wallace BuildingSA2 8PP, United Kingdom
推荐引用方式 GB/T 7714	McKenzie L.J.,Nordlund L.M.,Jones B.L.,et al. The global distribution of seagrass meadows[J],2020,15(7).
APA	McKenzie L.J.,Nordlund L.M.,Jones B.L.,Cullen-Unsworth L.C.,Roelfsema C.,&Unsworth R.K.F..(2020).The global distribution of seagrass meadows.Environmental Research Letters,15(7).
MLA	McKenzie L.J.,et al."The global distribution of seagrass meadows".Environmental Research Letters 15.7(2020).