Factors Influencing Carbon Stocks and Accumulation Rates in Eelgrass Meadows Across New England, USA
Novak, Alyssa (Boston University. Earth and Environment)
Pelletier, M. C. (Atlantic Ecology Division)
Colarusso, Phil (Environmental Protection Agency)
Simpson, J. (MIT Sea Grant)
Gutierrez, M. N. (Atlantic Ecology Division)
Arias Ortiz, Ariane (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Charpentier, M. (General Dynamics Corporation)
Masqué Barri, Pere (Universitat Autònoma de Barcelona. Departament de Física)
Vella, P. (Massachusetts Coastal Zone Management)

Data:	2020
Resum:	Increasing the protection of coastal vegetated ecosystems has been suggested as one strategy to compensate for increasing carbon dioxide (CO) in the atmosphere as the capacity of these habitats to sequester and store carbon exceeds that of terrestrial habitats. Seagrasses are a group of foundation species that grow in shallow coastal and estuarine systems and have an exceptional ability to sequester and store large quantities of carbon in biomass and, particularly, in sediments. However, carbon stocks (C stocks) and carbon accumulation rates (C accumulation) in seagrass meadows are highly variable both spatially and temporally, making it difficult to extrapolate this strategy to areas where information is lacking. In this study, C stocks and C accumulation were determined at 11 eelgrass meadows across New England, representing a range of eutrophication and exposure conditions. In addition, the environmental factors and structural characteristics of meadows related to variation in C stocks were identified. The objectives were accomplished by assessing stable isotopes of δ 13 C and δ 15 N as well as %C and %N in plant tissues and sediments, measuring grain size and 210 Pb of sediment cores, and through assessing site exposure. Variability in C stocks in seagrass meadows is well predicted using commonly measured environmental variables such as grain size distribution. This study allows incorporation of data and insights for the northwest Atlantic, where few studies on carbon sequestration by seagrasses have been conducted.
Ajuts:	Ministerio de Economía y Competitividad MDM2015-0552 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1588
Nota:	Correccions a aquest document es poden consultar a https://doi.org/10.1007/s12237-020-00815-z
Nota:	Unidad de excelencia María de Maeztu CEX2019-000940-M
Nota:	Altres ajuts: "Obra Social la Caixa" fellowship (LCF/BQ/ES14/10320004)
Drets:	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, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Seagrass ; Blue carbon ; Carbon sequestration ; New England
Publicat a:	Estuaries and Coasts, Vol. 43, Issue 8 (December 2020) , p. 2076-2091, ISSN 1559-2731

DOI: 10.1007/s12237-020-00754-9
PMID: 33364916

1.4 MB

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