Articles | Volume 21, issue 11
https://doi.org/10.5194/bg-21-2811-2024
https://doi.org/10.5194/bg-21-2811-2024
Research article
 | 
13 Jun 2024
Research article |  | 13 Jun 2024

Modelling CO2 and N2O emissions from soils in silvopastoral systems of the West African Sahelian band

Yélognissè Agbohessou, Claire Delon, Manuela Grippa, Eric Mougin, Daouda Ngom, Espoir Koudjo Gaglo, Ousmane Ndiaye, Paulo Salgado, and Olivier Roupsard

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Cited articles

Agbohessou, Y.: rstep: a workflow for STEP-GENDEC-CN model under R, Zenodo [code], https://doi.org/10.5281/zenodo.7994028, 2022. 
Agbohessou, Y., Delon, C., Mougin, E., Grippa, M., Tagesson, T., Diedhiou, M., Ba, S., Ngom, D., Vezy, R., Ndiaye, O., Assouma, M. H., Diawara, M., and Roupsard, O.: To what extent are greenhouse-gas emissions offset by trees in a Sahelian silvopastoral system?, Agr. Forest Meteorol., 343, 109780, https://doi.org/10.1016/j.agrformet.2023.109780, 2023a. 
Agbohessou, Y., Delon, C., Grippa, M., Mougin, E., and Roupsard, O.: 2D model STEP-GENDEC-CN (V1.0.0), European Geophysical Union General Assembly (EGU), Vienna, Zenodo [code], https://doi.org/10.5281/zenodo.7866671, 2023b. 
Assouma, M. H., Serça, D., Guérin, F., Blanfort, V., Lecomte, P., Touré, I., Ickowicz, A., Manlay, R. J., Bernoux, M., and Vayssières, J.: Livestock induces strong spatial heterogeneity of soil CO2, N2O and CH4 emissions within a semi-arid sylvo-pastoral landscape in West Africa, J. Arid Land, 9, 210–221, https://doi.org/10.1007/s40333-017-0001-y, 2017. 
Aulakh, M. S., Doran, J. W., Walters, D. T., and Power, J. F.: Legume residue and soil water effects on denitrification in soils of different textures, Soil Biol. Biochem., 23, 1161–1167, 1991. 
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Short summary
Emissions of greenhouse gases in the Sahel are not well represented because they are considered weak compared to the rest of the world. However, natural areas in the Sahel emit carbon dioxide and nitrous oxides, which need to be assessed because of extended surfaces. We propose an assessment of such emissions in Sahelian silvopastoral systems and of how they are influenced by environmental characteristics. These results are essential to inform climate change strategies in the region.
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