Role of carbonate burial in Blue Carbon budgets
Saderne, V. (King Abdullah University of Science and Technology. Red Sea and Computational Bioscience Research Centers (Saudi Arabia))
Geraldi, N. R. (King Abdullah University of Science and Technology. Red Sea and Computational Bioscience Research Centers (Saudi Arabia))
Macreadie, Peter I. (Deakin University. Centre for Integrative Ecology (Australia))
Maher, Damien (Southern Cross University. Southern Cross Geoscience (Australia))
Middelburg, J. J. (Utrecht University. Department of Earth Sciences (The Netherlands))
Serrano, Oscar (Edith Cowan University. Centre for Marine Ecosystems Research)
Almahasheer, Hanan (Imam Abdulrahman Bin Faisal University . Department of Biology (Saudi Arabia))
Arias Ortiz, Ariane (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Cusack, M. (King Abdullah University of Science and Technology. Red Sea and Computational Bioscience Research Centers (Saudi Arabia))
Eyre, Bradley D. (Southern Cross University. Centre for Coastal Biogeochemistry (Australia))
Fourqurean, James (Florida International University. Center for Coastal oceans Research. Institute of Water and Environment. Department of Biological Sciences (USA))
Kennedy, Hilary (Bangor University. School of Ocean Sciences (UK))
Krause-Jensen, Dorte (Aarhus University. Arctic Research Centre)
Kuwae, Tomohiro (Port and Airport Research Institute (Japan))
Lavery, Paul S. (Edith Cowan University. Centre for Marine Ecosystems Research)
Lovelock, Catherine E. (The University of Queensland. School of Biological Sciences (Australia))
Marbà, Núria (Institut Mediterrani d'Estudis Avançats)
Masqué Barri, Pere (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Mateo, M. A. (Consejo Superior de Investigaciones Cientificas. Centro de Estudios Avanzados de Blanes)
Mazarrasa, I. (Universidad de Cantabria. Instituto de Hidráulica Ambiental)
McGlathery, Karen J. (University of Virginia. Department of Environmental Sciences (USA))
Oreska, M. P. J. (University of Virginia. Department of Environmental Sciences (USA))
Sanders, C. J. (Southern Cross University. National Marine Science Centre (Australia))
Santos, Isaac. (Southern Cross University. National Marine Science Centre (Australia))
Smoak, J. M. (University of South Florida (USA))
Tanaya, T. (Port and Airport Research Institute (Japan))
Watanabe, Kenta (Port and Airport Research Institute (Japan))
Duarte, Carlos M.. (King Abdullah University of Science and Technology. Red Sea and Computational Bioscience Research Centers (Saudi Arabia))

Data:	2019
Resum:	Calcium carbonates (CaCO3) often accumulate in mangrove and seagrass sediments. As CaCO3 production emits CO2, there is concern that this may partially offset the role of Blue Carbon ecosystems as CO2 sinks through the burial of organic carbon (Corg). A global collection of data on inorganic carbon burial rates (Cinorg, 12% of CaCO3 mass) revealed global rates of 0. 8TgCinorg yr−1 and 15-62TgCinorg yr−1 in mangrove and seagrass ecosystems, respectively. In seagrass, CaCO3 burial may correspond to an offset of 30% of the net CO2 sequestration. However, a mass balance assessment highlights that the Cinorg burial is mainly supported by inputs from adjacent ecosystems rather than by local calcification, and that Blue Carbon ecosystems are sites of net CaCO3 dissolution. Hence, CaCO3 burial in Blue Carbon ecosystems contribute to seabed elevation and therefore buffers sea-level rise, without undermining their role as CO2 sinks.
Ajuts:	Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1588 Ministerio de Economía y Competitividad MDM2015-0552
Nota:	Unidad de excelencia María de Maeztu MdM-2015-0552
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
Publicat a:	Nature communications, Vol. 10 (March 2019) , art. 1106, ISSN 2041-1723

DOI: 10.1038/s41467-019-08842-6
PMID: 30846688

9 p, 1.3 MB

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