Global carbon emissions from biomass burning in the 20th century

Details Global carbon emissions from biomass burning in the 20th century Global carbon emissions from biomass burning in the 20th century

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3301801m&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 1, CiteID L01801

Physics

11

Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions (0426, 1610), Biogeosciences: Biogeochemical Cycles, Processes, And Modeling (0412, 0793, 1615, 4805, 4912), Biogeosciences: Carbon Cycling (4806), Biogeosciences: Data Sets, Global Change: Impacts Of Global Change (1225)

Scientific paper

We used a new, 100-year, 1 × 1° global fire map and a carbon cycle model (CASA) to provide a yearly gridded estimate of the temporal trend in carbon emissions due to wildfires through the 20th century. 2700-3325 Tg C y-1 burn at the end of the 20th century, compared to 1500-2700 Tg C y-1 at the beginning, with increasing uncertainty moving backward in time. There have been major changes in the regional distribution of emissions from fires, as a consequence of i) increased burning in tropical savannas and ii) a switch of emissions from temperate and boreal forests towards the tropics. The frequently-used assumption that pre-industrial emissions were 10% of present biomass burning is clearly inadequate, in terms of both the total amount and the spatial distribution of combustion.

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