Seagrass losses since mid-20th century fuelled CO emissions from soil carbon stocks
Salinas, Cristian (Edith Cowan University. School of Science)
Duarte, Carlos M. (Red Sea Research Center)
Lavery, Paul S. (Edith Cowan University. School of Science)
Masqué Barri, Pere (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Arias-Ortiz, Ariane (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Leon, Javier X. (University of the Sunshine Coast. Global Change Ecology Research Group)
Callaghan, David (The University of Queensland. School of Civil Engineering)
Kendrick, G. A. (The UWA Oceans Institute)
Serrano, Oscar (Edith Cowan University. School of Science)

Date:	2020
Abstract:	Seagrass meadows store globally significant organic carbon (Corg) stocks which, if disturbed, can lead to CO2 emissions, contributing to climate change. Eutrophication and thermal stress continue to be a major cause of seagrass decline worldwide, but the associated CO2 emissions remain poorly understood. This study presents comprehensive estimates of seagrass soil Corg erosion following eutrophication-driven seagrass loss in Cockburn Sound (23 km2 between 1960s and 1990s) and identifies the main drivers. We estimate that shallow seagrass meadows (<5 m depth) had significantly higher Corg stocks in 50 cm thick soils (4. 5 ± 0. 7 kg Corg/m2) than previously vegetated counterparts (0. 5 ± 0. 1 kg Corg/m2). In deeper areas (.
Grants:	Ministerio de Economía y Competitividad MDM2015-0552 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1588
Note:	Unidad de excelencia María de Maeztu CEX2019-000940-M
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Blue Carbon ; Carbon sinks ; Climate change ; Conservation ; Erosion ; Eutrophication ; Seagrass meadows
Published in:	Global change biology, Vol. 26, issue 9 (Sep. 2020) , p. 4772-4784, ISSN 1365-2486

DOI: 10.1111/gcb.15204
PMID: 32633058

13 p, 2.1 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Institut de Ciència i Tecnologia Ambientals (ICTA)
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Articles > Published articles