dc.contributor.author | Rap, A | |
dc.contributor.author | Spracklen, DV | |
dc.contributor.author | Mercado, L | |
dc.contributor.author | Reddington, CL | |
dc.contributor.author | Haywood, JM | |
dc.contributor.author | Ellis, RJ | |
dc.contributor.author | Phillips, OL | |
dc.contributor.author | Artaxo, P | |
dc.contributor.author | Bonal, D | |
dc.contributor.author | Restrepo Coupe, N | |
dc.contributor.author | Butt, N | |
dc.date.accessioned | 2016-04-11T10:52:02Z | |
dc.date.issued | 2015-06-09 | |
dc.description.abstract | 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 78-156TgCa<sup>-1</sup> 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 30-60TgCa<sup>-1</sup> of this NPP enhancement is within woody tissue, accounting for 8-16% of the observed carbon sink across mature Amazonian forests. | en_GB |
dc.description.sponsorship | This
research was funded by the Natural
Environment Research Council (NE/
J004723/1 and NE/J009822/1). P.A. was
supported by FAPESP grants 2013/
05014-0, 2014/50297-2 and CNPq. Data
recorded in French Guiana benefited
from an “Investissements d’Avenir” grant
managed by Agence Nationale de la
Recherche (CEBA ANR-10-LABX-25-01). We
thank researchers from the TRENDY
multimodel intercomparison project
for access to data, the LBA central office
at INPA for logistical support and the
principal investigators and their staff for
establishing and maintaining the
AERONET sites used in this study | en_GB |
dc.identifier.citation | Geophysical Research Letters, 2015, Volume 42, Issue 11, pp. 4654–4662 | en_GB |
dc.identifier.doi | 10.1002/2015GL063719 | |
dc.identifier.uri | http://hdl.handle.net/10871/21045 | |
dc.language.iso | en | en_GB |
dc.publisher | American Geophysical Union | en_GB |
dc.rights | This is the final version of the article. Available from the American Geophysical Union via the DOI in this record. | en_GB |
dc.subject | Aerosol | en_GB |
dc.subject | Biomass burning | en_GB |
dc.subject | Deforestation fires | en_GB |
dc.subject | Diffuse radiation | en_GB |
dc.subject | Plant photosynthesis | en_GB |
dc.title | Fires increase Amazon forest productivity through increases in diffuse radiation | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2016-04-11T10:52:02Z | |
dc.identifier.issn | 0094-8276 | |
dc.identifier.journal | Geophysical Research Letters | en_GB |