globalchange  > 科学计划与规划
DOI: 10.1002/2015GL063719
论文题名:
Fires increase Amazon forest productivity through increases in diffuse radiation
作者: Rap A.; Spracklen D.V.; Mercado L.; Reddington C.L.; Haywood J.M.; Ellis R.J.; Phillips O.L.; Artaxo P.; Bonal D.; Restrepo Coupe N.; Butt N.
刊名: Geophysical Research Letters
ISSN: 0094-9460
EISSN: 1944-9191
出版年: 2015
卷: 42, 期:11
起始页码: 4654
结束页码: 4662
语种: 英语
英文关键词: aerosol ; biomass burning ; deforestation fires ; diffuse radiation ; plant photosynthesis
Scopus关键词: Aerosols ; Atmospheric aerosols ; Biomass ; Carbon ; Deforestation ; Drought ; Forestry ; Photosynthesis ; Aerosol optical depths ; Amazon basin ; Amazon forests ; Amazonian forests ; Biomass-burning ; Carbon emissions ; Diffuse radiation ; Net primary production ; Radiation
英文摘要: 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. ©2015. The Authors.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84934440859&doi=10.1002%2f2015GL063719&partnerID=40&md5=6786a3ecce46cdec370a6300caac576e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9075
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: School of Earth and Environment, University of Leeds, Leeds, United Kingdom

Recommended Citation:
Rap A.,Spracklen D.V.,Mercado L.,et al. Fires increase Amazon forest productivity through increases in diffuse radiation[J]. Geophysical Research Letters,2015-01-01,42(11).
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