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Title: Long-term decline of the Amazon carbon sink
Authors: Brienen, Roel J.W.
Phillips, Oliver L.
Feldpausch, Ted R.
Gloor, Manuel E.
Baker, Timothy R.
Lloyd, Jon
Lopez-Gonzalez, Gabriela
Monteagudo-Mendoza, Abel
Malhi, Yadvinder Singh
Lewis, Simon L.
Vásquez-Martínez, Rodolfo
Alexiades, Miguel N.
Alvarez, Esteban
Álvarez-Loayza, Patricia
Andrade, Ana C.S.
Aragao, L. E.O.C.
Araujo-Murakami, Alejandro
Arets, Eric J.M.M.
Arroyo, Luzmila P.
Aymard-C, Gerardo A.
Bánki, Olaf S.
Baraloto, Christopher
Barroso, Jorcely
Bonal, Damien
Boot, René G.A.
Camargo, José Luís Campana
Castilho, Carolina Volkmer
Moscoso, Victor Chama
Chao, Kuo Jung
Chave, Jérôme
Comiskey, James A.
Cornejo-Valverde, Fernando
Costa, Lola da
Oliveira, Eddie Lenza de
Di Fiore, Anthony
Erwin, Terry L.
Fauset, Sophie
Forsthofer, Mônica
Galbraith, David R.
Grahame, E. S.
Groot, Nikée E.
Hérault, Bruno
Higuchi, Niro
Honorio Coronado, Euridice N.
Keeling, Helen C.
Killeen, Timothy J.
Laurance, William F.
Laurance, Susan G.W.
Licona, Juan Carlos
Magnussen, W. E.
Marimon, Beatriz Schwantes
Marimon Júnior, Ben Hur
Mendoza, Casimiro
Neill, David A.
Nogueira, Euler Melo
Núñez, Percy V.
Pallqui Camacho, Nadir Carolina
Parada, Alexander G.
Pardo-Molina, Guido
Peacock, Julie
Pena-Claros, Marielos
Pickavance, Georgia C.
Pitman, Nigel C.A.
Poorter, L.
Prieto, Adriana
Quesada, Carlos Alberto
Ramirez Arevalo, Fredy Francisco
Ramírez-Angulo, Hirma
Restrepo, Zorayda
Roopsind, Anand
Rudas, Agustín
Salomão, Rafael Paiva
Schwarz, Michael
Silva, Natalino
Silva-Espejo, Javier Eduardo
Silveira, Marcos
Stropp, Juliana
Talbot, Joey
ter Steege, H.
Teran-Aguilar, J.
Terborgh, John W.
Thomas-Caesar, Raquel
Toledo, Marisol
Torello-Raventos, Mireia
Umetsu, Ricardo Keichi
Van Der Heijden, Geertje M.F.
van der Hout, Peter
Guimarães Vieira, Ima Cèlia
Vieira, Simone Aparecida
Vilanova, Emilio
Vos, Vincent A.
Zagt, Roderick J.
Keywords: Carbon
Carbon Dioxide
Carbon Dioxide
Carbon Flux
Carbon Sink
Climate Change
Forest Ecosystem
Net Ecosystem Exchange
Numerical Model
Carbon Dynamics
Carbon Sink
Climate Change
Environmental Change
Forest Dynamics
Global Climate
Population Productivity
Priority Journal
South America
Tree Growth
Carbon Sequestration
Growth, Development And Aging
Plant Stem
Tropic Climate
Carbon Dioxide
Carbon Sequestration
Plant Stems
Tropical Climate
Issue Date: 2015
metadata.dc.publisher.journal: Nature
metadata.dc.relation.ispartof: Volume 519, Número 7543, Pags. 344-348
Abstract: Atmospheric carbon dioxide records indicate that the land surface has acted as a strong global carbon sink over recent decades, with a substantial fraction of this sink probably located in the tropics, particularly in the Amazon. Nevertheless, it is unclear how the terrestrial carbon sink will evolve as climate and atmospheric composition continue to change. Here we analyse the historical evolution of the biomass dynamics of the Amazon rainforest over three decades using a distributed network of 321 plots. While this analysis confirms that Amazon forests have acted as a long-term net biomass sink, we find a long-term decreasing trend of carbon accumulation. Rates of net increase in above-ground biomass declined by one-third during the past decade compared to the 1990s. This is a consequence of growth rate increases levelling off recently, while biomass mortality persistently increased throughout, leading to a shortening of carbon residence times. Potential drivers for the mortality increase include greater climate variability, and feedbacks of faster growth on mortality, resulting in shortened tree longevity. The observed decline of the Amazon sink diverges markedly from the recent increase in terrestrial carbon uptake at the global scale, and is contrary to expectations based on models. © 2015 2015 Macmillan Publishers Limited.
metadata.dc.identifier.doi: 10.1038/nature14283
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