Synthesis of the land carbon fluxes of the Amazon region between 2010 and 2020

Rosan, TM; Sitch, S; O’Sullivan, M; Basso, LS; Wilson, C; Silva, C; Gloor, E; Fawcett, D; Heinrich, V; Souza, JG; Bezerra, FGS; von Randow, C; Mercado, LM; Gatti, L; Wiltshire, A; Friedlingstein, P; Pongratz, J; Schwingshackl, C; Williams, M; Smallman, L; Knauer, J; Arora, V; Kennedy, D; Tian, H; Yuan, W; Jain, AK; Falk, S; Poulter, B; Arneth, A; Sun, Q; Zaehle, S; Walker, AP; Kato, E; Yue, X; Bastos, A; Ciais, P; Wigneron, JP; Albergel, C; Aragão, LEOC

Synthesis of the land carbon fluxes of the Amazon region between 2010 and 2020

Rosan, TM Sitch, S O’Sullivan, M Basso, LS Wilson, C Silva, C Gloor, E Fawcett, D Heinrich, V Souza, JG Bezerra, FGS von Randow, C Mercado, LM Gatti, L Wiltshire, A Friedlingstein, P Pongratz, J Schwingshackl, C Williams, M Smallman, L Knauer, J

Arora, V Kennedy, D Tian, H Yuan, W Jain, AK Falk, S Poulter, B Arneth, A Sun, Q Zaehle, S Walker, AP Kato, E Yue, X Bastos, A Ciais, P Wigneron, JP Albergel, C Aragão, LEOC

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Publisher:: Springer Nature
Publication Type:: Journal Article
Citation:: Communications Earth and Environment, 2024, 5, (1), pp. 46
Issue Date:: 2024-12-01

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Field	Value	Language
dc.contributor.author	Rosan, TM
dc.contributor.author	Sitch, S
dc.contributor.author	O’Sullivan, M
dc.contributor.author	Basso, LS
dc.contributor.author	Wilson, C
dc.contributor.author	Silva, C
dc.contributor.author	Gloor, E
dc.contributor.author	Fawcett, D
dc.contributor.author	Heinrich, V
dc.contributor.author	Souza, JG
dc.contributor.author	Bezerra, FGS
dc.contributor.author	von Randow, C
dc.contributor.author	Mercado, LM
dc.contributor.author	Gatti, L
dc.contributor.author	Wiltshire, A
dc.contributor.author	Friedlingstein, P
dc.contributor.author	Pongratz, J
dc.contributor.author	Schwingshackl, C
dc.contributor.author	Williams, M
dc.contributor.author	Smallman, L
dc.contributor.author	Knauer, J https://orcid.org/0000-0002-4947-7067
dc.contributor.author	Arora, V
dc.contributor.author	Kennedy, D
dc.contributor.author	Tian, H
dc.contributor.author	Yuan, W
dc.contributor.author	Jain, AK
dc.contributor.author	Falk, S
dc.contributor.author	Poulter, B
dc.contributor.author	Arneth, A
dc.contributor.author	Sun, Q
dc.contributor.author	Zaehle, S
dc.contributor.author	Walker, AP
dc.contributor.author	Kato, E
dc.contributor.author	Yue, X
dc.contributor.author	Bastos, A
dc.contributor.author	Ciais, P
dc.contributor.author	Wigneron, JP
dc.contributor.author	Albergel, C
dc.contributor.author	Aragão, LEOC
dc.date.accessioned	2025-05-20T03:44:32Z
dc.date.available	2025-05-20T03:44:32Z
dc.date.issued	2024-12-01
dc.identifier.citation	Communications Earth and Environment, 2024, 5, (1), pp. 46
dc.identifier.issn	2662-4435
dc.identifier.issn	2662-4435
dc.identifier.uri	http://hdl.handle.net/10453/187427
dc.description.abstract	The Amazon is the largest continuous tropical forest in the world and plays a key role in the global carbon cycle. Human-induced disturbances and climate change have impacted the Amazon carbon balance. Here we conduct a comprehensive synthesis of existing state-of-the-art estimates of the contemporary land carbon fluxes in the Amazon using a set of bottom-up methods (i.e., dynamic vegetation models and bookkeeping models) and a top-down inversion (atmospheric inversion model) over the Brazilian Amazon and the whole Biogeographical Amazon domain. Over the whole biogeographical Amazon region bottom-up methodologies suggest a small average carbon sink over 2010-2020, in contrast to a small carbon source simulated by top-down inversion (2010-2018). However, these estimates are not significantly different from one another when accounting for their large individual uncertainties, highlighting remaining knowledge gaps, and the urgent need to reduce such uncertainties. Nevertheless, both methodologies agreed that the Brazilian Amazon has been a net carbon source during recent climate extremes and that the south-eastern Amazon was a net land carbon source over the whole study period (2010-2020). Overall, our results point to increasing human-induced disturbances (deforestation and forest degradation by wildfires) and reduction in the old-growth forest sink during drought.
dc.language	en
dc.publisher	Springer Nature
dc.relation.ispartof	Communications Earth and Environment
dc.relation.isbasedon	10.1038/s43247-024-01205-0
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	37 Earth sciences
dc.subject.classification	41 Environmental sciences
dc.title	Synthesis of the land carbon fluxes of the Amazon region between 2010 and 2020
dc.type	Journal Article
utslib.citation.volume	5
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Science
pubs.organisational-group	University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-05-20T03:44:30Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	5
utslib.citation.issue	1

Abstract:

The Amazon is the largest continuous tropical forest in the world and plays a key role in the global carbon cycle. Human-induced disturbances and climate change have impacted the Amazon carbon balance. Here we conduct a comprehensive synthesis of existing state-of-the-art estimates of the contemporary land carbon fluxes in the Amazon using a set of bottom-up methods (i.e., dynamic vegetation models and bookkeeping models) and a top-down inversion (atmospheric inversion model) over the Brazilian Amazon and the whole Biogeographical Amazon domain. Over the whole biogeographical Amazon region bottom-up methodologies suggest a small average carbon sink over 2010-2020, in contrast to a small carbon source simulated by top-down inversion (2010-2018). However, these estimates are not significantly different from one another when accounting for their large individual uncertainties, highlighting remaining knowledge gaps, and the urgent need to reduce such uncertainties. Nevertheless, both methodologies agreed that the Brazilian Amazon has been a net carbon source during recent climate extremes and that the south-eastern Amazon was a net land carbon source over the whole study period (2010-2020). Overall, our results point to increasing human-induced disturbances (deforestation and forest degradation by wildfires) and reduction in the old-growth forest sink during drought.

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http://hdl.handle.net/10453/187427