Articles | Volume 22, issue 4
https://doi.org/10.5194/acp-22-2871-2022
https://doi.org/10.5194/acp-22-2871-2022
Research article
 | 
03 Mar 2022
Research article |  | 03 Mar 2022

Stable carbon isotopic composition of biomass burning emissions – implications for estimating the contribution of C3 and C4 plants

Roland Vernooij, Ulrike Dusek, Maria Elena Popa, Peng Yao, Anupam Shaikat, Chenxi Qiu, Patrik Winiger, Carina van der Veen, Thomas Callum Eames, Natasha Ribeiro, and Guido R. van der Werf

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Subject: Gases | Research Activity: Laboratory Studies | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Cited articles

Aguilera, J. and Whigham, L. D.: Using the 13C/12C carbon isotope ratio to characterise the emission sources of airborne particulate matter: a review of literature, Isot. Environ. Health S., 54, 573–587, https://doi.org/10.1080/10256016.2018.1531854, 2018. 
Andersson, A., Kirillova, E. N., Decesari, S., DeWitt, L., Gasore, J., Potter, K. E., Prinn, R. G., Rupakheti, M., de Dieu Ndikubwimana, J., Nkusi, J., and Safari, B.: Seasonal source variability of carbonaceous aerosols at the Rwanda Climate Observatory, Atmos. Chem. Phys., 20, 4561–4573, https://doi.org/10.5194/acp-20-4561-2020, 2020. 
Andreae, M. O.: Emission of trace gases and aerosols from biomass burning – an updated assessment, Atmos. Chem. Phys., 19, 8523–8546, https://doi.org/10.5194/acp-19-8523-2019, 2019. 
Ascough, P. L., Bird, M. I., Wormald, P., Snape, C. E., and Apperley, D.: Influence of production variables and starting material on charcoal stable isotopic and molecular characteristics, Geochim. Cosmochim. Ac., 72, 6090–6102, https://doi.org/10.1016/j.gca.2008.10.009, 2008. 
Assonov, S., Groening, M., Fajgelj, A., Hélie, J. F., and Hillaire-Marcel, C.: Preparation and characterisation of IAEA-603, a new primary reference material aimed at the VPDB scale realisation for δ13C and δ18O determination, Rapid Commun. Mass Sp., 34, e8867, https://doi.org/10.1002/rcm.8867, 2020. 
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Short summary
Landscape fires are a major source of greenhouse gases and aerosols, particularly in sub-tropical savannas. Stable carbon isotopes in emissions can be used to trace the contribution of C3 plants (e.g. trees or shrubs) and C4 plants (e.g. savanna grasses) to greenhouse gases and aerosols if the process is well understood. This helps us to link individual vegetation types to emissions, identify biomass burning emissions in the atmosphere, and improve the reconstruction of historic fire regimes.
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