Show simple item record

dc.contributor.authorPoulter, Benjamin
dc.contributor.authorCadule, Patricia
dc.contributor.authorChelney, Audrey
dc.contributor.authorCiais, Philippe
dc.contributor.authorHodson, Elke L.
dc.contributor.authorPeylin, Phili
dc.contributor.authorPlummer, Stephen
dc.contributor.authorSpessa, Allan
dc.contributor.authorSaatchi, Sassan S.
dc.contributor.authorYue, Chao
dc.contributor.authorZimmermann, Niklaus E.
dc.identifier.citationPoulter, Benjamin, Patricia Cadule, Audrey Cheiney, Philippe Ciais, Elke Hodson, Philippe Peylin, Stephen Plummer, Allan Spessa, Sassan Saatchi, Chao Yue, and Niklaus E. Zimmermann. "Sensitivity of global terrestrial carbon cycle dynamics to variability in satellite-observed burned area." Global Biogeochemical Cycles 29, no. 2 (February 2015): 201-222. DOI:
dc.description.abstractFire plays an important role in terrestrial ecosystems by regulating biogeochemistry, biogeography, and energy budgets, yet despite the importance of fire as an integral ecosystem process, significant advances remain to improve its prognostic representation in carbon cycle models. To recommend and to help prioritize model improvements, this study investigates the sensitivity of a coupled global biogeography and biogeochemistry model, LPJ, to observed burned area measured by three independent satellite-derived products, GFED v3.1, L3JRC, and GlobCarbon. Model variables are compared with benchmarks that include pantropical aboveground biomass, global tree cover, and CO2 and CO trace gas concentrations. Depending on prescribed burned area product, global aboveground carbon stocks varied by 300 Pg C, and woody cover ranged from 50 to 73 Mkm2. Tree cover and biomass were both reduced linearly with increasing burned area, i.e., at regional scales, a 10% reduction in tree cover per 1000 km2, and 0.04-to-0.40 Mg C reduction per 1000 km2. In boreal regions, satellite burned area improved simulated tree cover and biomass distributions, but in savanna regions, model-data correlations decreased. Global net biome production was relatively insensitive to burned area, and the long-term land carbon sink was robust, ~2.5 Pg C yr−1, suggesting that feedbacks from ecosystem respiration compensated for reductions in fuel consumption via fire. CO2 transport provided further evidence that heterotrophic respiration compensated any emission reductions in the absence of fire, with minor differences in modeled CO2 fluxes among burned area products. CO was a more sensitive indicator for evaluating fire emissions, with MODIS-GFED burned area producing CO concentrations largely in agreement with independent observations in high latitudes. This study illustrates how ensembles of burned area data sets can be used to diagnose model structures and parameters for further improvement and also highlights the importance in considering uncertainties and variability in observed burned area data products for model applications.en_US
dc.titleSensitivity of global terrestrial carbon cycle dynamics to variability in satellite-observed burned areaen_US
mus.citation.journaltitleGlobal Biogeochemical Cyclesen_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupMontana Institute on Ecosystems.en_US
mus.contributor.orcidPoulter, Benjamin|0000-0002-9493-8600en_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

MSU uses DSpace software, copyright © 2002-2017  Duraspace. For library collections that are not accessible, we are committed to providing reasonable accommodations and timely access to users with disabilities. For assistance, please submit an accessibility request for library material.