Diongue D. M. L. auteur aut IRD Roupsard O. auteur aut IRD Do Frédéric auteur aut IRD Stumpp C. auteur aut IRD Orange Didier auteur aut IRD Sow S. auteur aut IRD Jourdan C. auteur aut IRD Faye S. auteur aut IRD text journalArticle eng text/pdf born digital access Soil hydraulic parameters (SHPs) required as inputs for numerical models are scarce in Sahelian regions. Instead, they are estimated using pedotransfer functions (PTFs), but their ability to simulate soil water dynamics has not been evaluated. This study aims to parameterize SHPs with seven different PTFs and inverse modelling to examine their ability to simulate water fluxes in Senegal's Groundnut basin. We used four years of field measurements of soil water content (SWC) and actual evapotranspiration (ETa) under pearl millet and groundnut crop rotation for model evaluation. Inverse modelling for SWC (root mean square error [RMSE] <= 0.015 cm(3) cm(-3)) and ETa (RMSE <= 0.62 mm d(-1)) yielded the best model performance compared to PTFs (0.024-0.175 cm(3) cm(-3) and 0.68-0.96 mm d(-1), respectively). Where field measurements are lacking for inverse estimation, three of the seven tested PTFs yielded good modelling results and could be used as a parsimonious approach for cultivated Sahelian soils. specialized soil hydraulic parameters soil moisture evapotranspiration HYDRUS-1D loamy sand soil Sahelian cropping system SENEGAL 072 67 15 2327-2343 2022 0262-6667 https://www.documentation.ird.fr/hor/fdi:010086674 10.1080/02626667.2022.2142474 0262-6667 [F B010086674] https://www.documentation.ird.fr/hor/fdi:010086674 https://www.documentation.ird.fr/intranet/publi/2023-01/010086674.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2023-01-11 2025-02-24 fdi:010086674 fre