Greenhouse gas emission from prescribed fires is influenced by vegetation types 
in West African Savannas

Yaro, Valaire Séraphin Ouehoudja; Bondé, Loyapin; Bougma, Pawend-taoré Christian; Sedgo, Issoufou; Guuroh, Reginald Tang; Gebremichael, Amanuel Woldeselassie; Neya, Tiga; Linstädter, Anja; Ouédraogo, Oumarou

doi:10.1038/s41598-024-73753-6

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Greenhouse gas emission from prescribed fires is influenced by vegetation types in West African Savannas

Authors

Yaro, Valaire Séraphin Ouehoudja
External Organizations;

Bondé, Loyapin
External Organizations;

Bougma, Pawend-taoré Christian
External Organizations;

Sedgo, Issoufou
External Organizations;

Guuroh, Reginald Tang
External Organizations;

/persons/resource/amanuel

Gebremichael, Amanuel Woldeselassie
1.4 Remote Sensing, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Neya, Tiga
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Linstädter, Anja
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Ouédraogo, Oumarou
External Organizations;

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Citation

Yaro, V. S. O., Bondé, L., Bougma, P.-t.-C., Sedgo, I., Guuroh, R. T., Gebremichael, A. W., Neya, T., Linstädter, A., Ouédraogo, O. (2024): Greenhouse gas emission from prescribed fires is influenced by vegetation types in West African Savannas. - Scientific Reports, 14, 23754.
https://doi.org/10.1038/s41598-024-73753-6

Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5028329

Abstract

Greenhouse gas (GHG) emissions from prescribed fires are poorly investigated, resulting in a high uncertainty in GHG budgets. Using, a carbon mass balance approach and experimental prescribed fires in 80 plots, this study assessed carbon emissions and established emission factors (EFs) for carbon dioxides (CO2), carbon monoxide (CO), and methane (CH4) across climate zones and vegetation types. In grass and shrub savannas, fires could burn intensely due to the lower moisture content and continuous spatial distribution of biomass fuel, causing greater carbon emissions with 1.61 ± 0.13 t C ha−1 and 1.01 ± 0.13 t C ha−1, respectively. Despite their low carbon emissions, tree savannas (1658.17 ± 11.13 g kg−1) and woodlands (1629.94 ± 12.23 g kg−1) have the highest EFs, which can be attribute to the high carbon content of biomass fuel in these vegetation types. Vegetation types and their interaction with climate zones have a substantial impact on carbon emissions and carbon species EFs, and should therefore be considered in assessing GHG emissions from fires. The findings from this study provide a useful basis for improving the national measurement, reporting, and verification of GHG emissions and for improving the measurement of the global balance of GHG emissions from fires.