1. Geology Department, University Cheikh Anta Diop, Dakar, Senegal
2. LMI IESOL, IRD, ISRA, Bel Air, Dakar, Sénégal
3. CIRAD, UMR Eco&Sols, Dakar, Senegal
4. Eco&Sols, University Montpellier, CIRAD, INRAE, IRD, Institut Agro, Montpellier, France
5. IRD, UMR Eco&Sols, U. Montpellier, IRD, CIRAD, INRAE, Institut Agro, Montpellier, France
6. Department of Water, Atmosphere and Environment, Institute of Soil Physics and Rural Water Management, University of Natural Resources and Life Sciences, Muthgasse, Vienna, Austria
7. UFR des Sciences Agronomiques de l'aquaculture et des Technologies Alimentaires (S2ATA), Université Gaston Berger, Saint Louis, Sénégal
8. CIRAD, UMR Eco&Sols, Montpellier, France