Fires increase Amazon forest productivity through increases in diffuse radiation

Rap, A; Spracklen, DV; Mercado, L; Reddington, CL; Haywood, JM; Ellis, RJ; Phillips, OL; Artaxo, P; Bonal, D; Restrepo Coupe, N; Butt, N

Fires increase Amazon forest productivity through increases in diffuse radiation

Rap, A Spracklen, DV Mercado, L Reddington, CL Haywood, JM Ellis, RJ Phillips, OL Artaxo, P Bonal, D Restrepo Coupe, N

Butt, N

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Publication Type:: Journal Article
Citation:: Geophysical Research Letters, 2015, 42 (11), pp. 4654 - 4662
Issue Date:: 2015-06-16

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Field	Value	Language
dc.contributor.author	Rap, A	en_US
dc.contributor.author	Spracklen, DV	en_US
dc.contributor.author	Mercado, L	en_US
dc.contributor.author	Reddington, CL	en_US
dc.contributor.author	Haywood, JM	en_US
dc.contributor.author	Ellis, RJ	en_US
dc.contributor.author	Phillips, OL	en_US
dc.contributor.author	Artaxo, P	en_US
dc.contributor.author	Bonal, D	en_US
dc.contributor.author	Restrepo Coupe, N https://orcid.org/0000-0003-3921-1772	en_US
dc.contributor.author	Butt, N	en_US
dc.date.issued	2015-06-16	en_US
dc.identifier.citation	Geophysical Research Letters, 2015, 42 (11), pp. 4654 - 4662	en_US
dc.identifier.issn	0094-8276	en_US
dc.identifier.uri	http://hdl.handle.net/10453/118546
dc.description.abstract	©2015. The Authors. Atmospheric aerosol scatters solar radiation increasing the fraction of diffuse radiation and the efficiency of photosynthesis. We quantify the impacts of biomass burning aerosol (BBA) on diffuse radiation and plant photosynthesis across Amazonia during 1998-2007. Evaluation against observed aerosol optical depth allows us to provide lower and upper BBA emissions estimates. BBA increases Amazon basin annual mean diffuse radiation by 3.4-6.8% and net primary production (NPP) by 1.4-2.8%, with quoted ranges driven by uncertainty in BBA emissions. The enhancement of Amazon basin NPP by 78-156 Tg C a-1 is equivalent to 33-65% of the annual regional carbon emissions from biomass burning. This NPP increase occurs during the dry season and acts to counteract some of the observed effect of drought on tropical production. We estimate that 30-60 Tg C a-1 of this NPP enhancement is within woody tissue, accounting for 8-16% of the observed carbon sink across mature Amazonian forests.	en_US
dc.relation.ispartof	Geophysical Research Letters	en_US
dc.relation.isbasedon	10.1002/2015GL063719	en_US
dc.subject.classification	Meteorology & Atmospheric Sciences	en_US
dc.title	Fires increase Amazon forest productivity through increases in diffuse radiation	en_US
dc.type	Journal Article
utslib.citation.volume	11	en_US
utslib.citation.volume	42	en_US
utslib.for	0602 Ecology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	open_access
pubs.issue	11	en_US
pubs.publication-status	Published	en_US
pubs.volume	42	en_US

Abstract:

©2015. The Authors. Atmospheric aerosol scatters solar radiation increasing the fraction of diffuse radiation and the efficiency of photosynthesis. We quantify the impacts of biomass burning aerosol (BBA) on diffuse radiation and plant photosynthesis across Amazonia during 1998-2007. Evaluation against observed aerosol optical depth allows us to provide lower and upper BBA emissions estimates. BBA increases Amazon basin annual mean diffuse radiation by 3.4-6.8% and net primary production (NPP) by 1.4-2.8%, with quoted ranges driven by uncertainty in BBA emissions. The enhancement of Amazon basin NPP by 78-156 Tg C a-1 is equivalent to 33-65% of the annual regional carbon emissions from biomass burning. This NPP increase occurs during the dry season and acts to counteract some of the observed effect of drought on tropical production. We estimate that 30-60 Tg C a-1 of this NPP enhancement is within woody tissue, accounting for 8-16% of the observed carbon sink across mature Amazonian forests.

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http://hdl.handle.net/10453/118546