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| Titel |
The influence of vegetation, fire spread and fire behaviour on biomass burning and trace gas emissions: results from a process-based model |
| VerfasserIn |
K. Thonicke, A. Spessa, I. C. Prentice, S. P. Harrison, L. Dong, C. Carmona-Moreno |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 7, no. 6 ; Nr. 7, no. 6 (2010-06-23), S.1991-2011 |
| Datensatznummer |
250004851
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| Publikation (Nr.) |
 copernicus.org/bg-7-1991-2010.pdf |
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| Zusammenfassung |
| A process-based fire regime model (SPITFIRE) has been developed, coupled
with ecosystem dynamics in the LPJ Dynamic Global Vegetation Model, and used
to explore fire regimes and the current impact of fire on the terrestrial
carbon cycle and associated emissions of trace atmospheric constituents. The
model estimates an average release of 2.24 Pg C yr−1 as CO2 from
biomass burning during the 1980s and 1990s. Comparison with observed active
fire counts shows that the model reproduces where fire occurs and can mimic
broad geographic patterns in the peak fire season, although the predicted
peak is 1–2 months late in some regions. Modelled fire season length is
generally overestimated by about one month, but shows a realistic pattern of
differences among biomes. Comparisons with remotely sensed burnt-area
products indicate that the model reproduces broad geographic patterns of
annual fractional burnt area over most regions, including the boreal forest,
although interannual variability in the boreal zone is underestimated. |
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