globalchange  > 气候变化事实与影响
DOI: 10.1002/2014GB005008
Scopus记录号: 2-s2.0-84946565941
论文题名:
Disentangling the contribution of multiple land covers to fire-mediated carbon emissions in Amazonia during the 2010 drought
作者: Anderson L; O; , Aragão L; E; O; C; , Gloor M; , Arai E; , Adami M; , Saatchi S; S; , Malhi Y; , Shimabukuro Y; E; , Barlow J; , Berenguer E; , Duarte V
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2015
卷: 29, 期:10
起始页码: 1739
结束页码: 1753
语种: 英语
英文关键词: Amazonia ; biomass ; carbon emission ; drought ; fire
Scopus关键词: biomass ; biomass burning ; carbon emission ; drought ; forest fire ; land cover ; old-growth forest ; satellite data ; sensor ; spatiotemporal analysis ; Brazil ; Mato Grosso
英文摘要: In less than 15 years, the Amazon region experienced three major droughts. Links between droughts and fires have been demonstrated for the 1997/1998, 2005, and 2010 droughts. In 2010, emissions of 510 ± 120 Tg C were associated to fire alone in Amazonia. Existing approaches have, however, not yet disentangled the proportional contribution of multiple land cover sources to this total. We develop a novel integration of multisensor and multitemporal satellite-derived data on land cover, active fires, and burned area and an empirical model of fire-induced biomass loss to quantify the extent of burned areas and resulting biomass loss for multiple land covers in Mato Grosso (MT) state, southern Amazonia - the 2010 drought most impacted region. We show that 10.77% (96,855 km2) of MT burned. We estimated a gross carbon emission of 56.21 ± 22.5 Tg C from direct combustion of biomass, with an additional 29.4 ± 10 Tg C committed to be emitted in the following years due to dead wood decay. It is estimated that old-growth forest fires in the whole Brazilian Legal Amazon (BLA) have contributed to 14.81 Tg of C (11.75 Tg C to 17.87 Tg C) emissions to the atmosphere during the 2010 fire season, with an affected area of 27,555 km2. Total C loss from the 2010 fires in MT state and old-growth forest fires in the BLA represent, respectively, 77% (47% to 107%) and 86% (68.2% to 103%) of Brazil's National Plan on Climate Change annual target for Amazonia C emission reductions from deforestation. ©2015. The Authors.
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被引频次[WOS]:53   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77923
Appears in Collections:气候变化事实与影响

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作者单位: National Center for Monitoring and Early Warning of Natural Disasters, São José dos Campos, Brazil; Environmental Change Institute, University of Oxford, Oxford, United Kingdom; Remote Sensing Division, National Institute for Space Research, São José dos Campos, Brazil; College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom; School of Geography, University of Leeds, Leeds, United Kingdom; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Institute of Environment, University of California, Los Angeles, CA, United States; Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom

Recommended Citation:
Anderson L,O,, Aragão L,et al. Disentangling the contribution of multiple land covers to fire-mediated carbon emissions in Amazonia during the 2010 drought[J]. Global Biogeochemical Cycles,2015-01-01,29(10)
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