ruissellement (2) paramètre (2) modèle (2) mesure (méthode analytique) (2) infiltration (2) taux (2) The Valley (2) Treatment (2) Technique (2) Water harvesting (2) Values (2) Tillage (2) Strategy (2) Storage (2) Seepage (2) Runoff (2) Rain and rainfall (2) Measurement (2) Great Rift Valley (2) Example (2) Droughts (2) Crop yields (2) Corn (2) Well-being (2) Stories, plots, etc (2) Stories, plots, etc (2) Technique (2) Yields (2) Influence (2) Areas (2)