Stable carbon isotopic composition of biomass burning emissions – implications for estimating the contribution of C<sub>3</sub> and C<sub>4</sub> plants

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Abstract C 3 C 4 C 3 C 4 CO 2 CH 4 CO 2 13 C signature. CO in particular showed a distinct dependence on burning conditions; flaming emissions were enriched in 13 C compared to smouldering combustion emissions. For CH 4 C 3 13 C -enriched) and C 4 13 C -depleted). This indicates that while it is possible to distinguish between fires that were dominated by either C 3 C 4 δ 13 C signature of emissions. Besides laboratory experiments, we sampled gases and carbonaceous aerosols from prescribed fires in the Niassa Special Reserve (NSR) in Mozambique, using an unmanned aerial system (UAS)-mounted sampling set-up. We also provided a range of C 3: C 4 contributions to the fuel and measured the fuel isotopic signatures. While both OC and EC were useful tracers of the C 3 C 4 C 3: C 4 ratio in the field or other processes caused this depletion. Although additional field measurements are needed, our results indicate that C 3 C 4 source ratio estimation is possible with most BB products, albeit with varying uncertainty ranges.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Stable carbon isotopic composition of biomass burning emissions – implications for estimating the contribution of C3 and C4 plants ; volume:22 ; number:4 ; year:2022 ; pages:2871-2890 ; extent:20
Atmospheric chemistry and physics ; 22, Heft 4 (2022), 2871-2890 (gesamt 20)

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

DOI
10.5194/acp-22-2871-2022
URN
urn:nbn:de:101:1-2022031004271606884861
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:26 MESZ

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Beteiligte

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

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