Yélognissè Frédi Agbohessou

rstep is a workflow package that I developed to perform STEP-GENDEC-CN model simulations within the RStudio environment

In addition to traditional academic contributions, I have made all the code used for data visualization and analysis in my previous publications available on my GitHub. You can check it out here

• Wieckowski, A., Vestin, P., Ardö, J., Roupsard, O., Ndiaye, O., Diatta, O., Ba, S., Agbohessou, Y., Fensholt, R., Verbruggen, W., Gebremedhn, H. H., & Tagesson, T. (2024). Eddy covariance measurements reveal a decreased carbon sequestration strength 2010–2022 in an African semiarid savanna. Global Change Biology, 30, e17509. https://doi.org/10.1111/gcb.17509

• Agbohessou, Y., Delon, C., Grippa, M., Mougin, E., Ngom, D., Gaglo, E.K., Ndiaye, O., Salgado, P., Roupsard, O. (2024). Modelling CO2 and N2O emissions from soils in silvopastoral systems of the West African Sahelian band. Biogeosciences, 21, 2811–2837. https://doi.org/10.5194/bg-21-2811-2024

• Sow, S., Senghor, Y., Sadio, K., Vezy, R., Roupsard, O., Affholder, F., N’dienor, M., Clermont-Dauphin, C., Gaglo, E.K., Ba, S., Tounkara, A., Balde, A.B., Agbohessou, Y., Seghieri, J., Sall, S.N., Couedel, A., Leroux, L., Jourdan, C., Diaite, D.S., Falconnier, G.N. (2023). Calibrating the STICS soil-crop model to explore the impact of agroforestry parklands on millet growth. Field Crops Research, 306, 109206. https://doi.org/10.1016/j.fcr.2023.109206

• 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., Roupsard, O. (2023). To what extent are greenhouse-gas emissions offset by trees in a Sahelian silvopastoral system? Agricultural and Forest Meteorology, 343, 109780. https://doi.org/10.1016/j.agrformet.2023.109780

• Delon, C., Galy-Lacaux, C., Barret, B., Ndiaye, O., Serça, D., Guérin, F., Gardrat, E., Mougin, E., Agbohessou, Y.F., Probst, A. (2022). Nitrogen budget and critical load determination at a Sahelian grazed grassland site. Nutrient Cycling in Agroecosystems. https://doi.org/10.1007/s10705-022-10220-6

• Roupsard, O., Audebert, A., Ndour, A.P., Clermont-Dauphin, C., Agbohessou, Y., Sanou, J., Koala, J., Faye, E., Sambakhe, D., Jourdan, C., le Maire, G., Tall, L., Sanogo, D., Seghieri, J., Cournac, L., Leroux, L. (2020). How far does the tree affect the crop in agroforestry? New spatial analysis methods in a Faidherbia parkland. Agriculture, Ecosystems & Environment, 296, 106928. https://doi.org/10.1016/j.agee.2020.106928

• Agbohessou, Y., Audebert, A., Ndour, A., Sokhna Sarr, M., Jourdan, C.,Clermont-Dauphin, C., Diatta, S., Sow, S., Leroux, L., Pierre, C.,Taugourdeau, S., Sanogo, D., Seghieri, J., le Maire, G., Vezy, R.,Fonceka, D., Roupsard, O., (2024) Is the distance of influence of agroforestry trees on crops an indicator of their impact on yield and on Land Equivalent Ratio? Results from an improved multispectral UAV and geostatistics approach. To be submitted to Agriculture, Ecosystems & Environment

• Ba, S., Roupsard, O., Chapuis-Lardy, L., Agbohessou, Y., Bouvery, F., Wieckowski, A., Duthoit, M., Tagesson, T., Taugourdeau, S., Assouma, H., Gaglo, E.K., Irvine, M., Soudani, K., Sambou, B., Serça, D., (2024) Soil CO2 fluxes in a Sahelian agroforestry parkland dominated by Faidherbia albida : seasonal dynamic, trees effect, and annual balance. To be submitted to Agricultural and Forest Meteorology

I have participated in oral presentations at 13 conferences (9 international, 4 national). See the full list on my website here

• Agbohessou, Y., Ba, S., Ferchaud, F., Léonard, J., Bouvery, F., Duthoit, M., Sow, S., Delon, C., Vezy, R., Ngom, D., Mougin, E., Falconnier, G., Taugourdeau, S., Roupsard, O. (2024). Modelling CO2 and N2O emissions from a tropical semi-arid parkland cultivated with groundnut and millet. EGU24, 14-19 April 2024, Vienna, Austria. Copernicus Meetings. https://doi.org/10.5194/egusphere-egu24-7588

• Agbohessou, Y., Delon, C., Grippa, M., Mougin, E., Ba, S., Ngom, D., Roupsard, O. (2023). Soil CO2 and N2O emissions in Sahelian Silvopastoral systems: spatial distribution and annual budget estimation (No. EGU23-7304). Oral Presentation at the EGU23, 23-28 April 2023, Vienna, Austria. Copernicus Meetings. https://doi.org/10.5194/egusphere-egu23-7304

• Agbohessou, Y., Audebert, A., Ndour, A., Sarr, M.S., Jourdan, C., Clermont-Dauphin, C., Diatta, S., Leroux, L., Taugourdeau, S., Sanogo, D., Seghieri, J., Delon, C., Roupsard, O., 2022. Using UAV and geostatistics to upscale crop yield in heterogeneous agro-silvo-pastoral system (No. EGU22-11773). Presented at the EGU22, 23-27 May 2022, Vienna, Austria. Copernicus Meetings. https://doi.org/10.5194/egusphere-egu22-11773

• Ba, S.M., Roupsard, O., Chapuis-Lardy, L., Bouvery, F., Diongue, D.M.L., Agbohessou, Y.F., Guérin, F., Tagesson, H.T., Sambou, B., Serça, D., 2022. Monitoring soil greenhouse gas (GHG) emissions in a Sahelian agrosilvo-pastoral parkland (No. EGU22-4337). Presented at the EGU22, Copernicus Meetings. https://doi.org/10.5194/egusphere-egu22-4337

• Roupsard, O., Frederic, D., Alain, R., Christophe, J., Didier, O., Laure, T., Sidy, S., Waly, F., Djimm M.L., D., Khalisse, D., Yélognissé, A., Seydou, D., Serigne, F., Mame Sokhna, S., Diaminatou, S., Guerric, le M., Remi, V., Josiane, S., Laurent, C., 2020. More C uptake during the dry season? The case of a semi-arid agro-silvo-pastoral ecosystem dominated by Faidherbia albida, a tree with reverse phenology (Senegal) (other). display. https://doi.org/10.5194/egusphere-egu2020-11203

• Agbohessou, Y., Delon, C., Grippa, M., Mougin, E., Tagesson, T., Ngom, D., Gaglo, E.K., Ba, S., Ndiaye, O., Roupsard, O., 2024. Modélisation des émissions de CO2 et de N2O des sols dans les systèmes sylvopastoraux sahéliens : de l’échelle locale à l’échelle régionale. JMSC2024, 19-20 Juin 2024, Strasbourg, France.

• Agbohessou, Y., Delon, C., Grippa, M., Mougin, E., Tagesson, T., Ngom, D., Roupsard, O., 2021. Modeling Greenhouse Gas Emissions from Sahelian Sylvo-pastoral Ecosystems. Poster presented at the AGU Fall Meeting 2021, AGU, 13-17 Dec 2021, New Orlean, LA, USA. https://agu.confex.com/agu/fm21/meetingapp.cgi/Paper/809234

Senior research scientist at CIRAD: olivier.roupsard@cirad.fr

Senior research scientist at CNRS: claire.delon@aero.obs-mip.fr

Senior research scientist at CIRAD: guerric.le_maire@cirad.fr

Full Professor at UCAD & Minister of Environment and Sustainable Development of Senegal: daouda11.ngom@ucad.edu.sn & ngom_daouda@yahoo.fr