Modélisation spatialisée du devenir des pesticides à l'échelle d'un versant. Influence de la position d'un dispositif enherbé sur la partition des transferts entre surface et subsurface

International audience; In France, agriculture uses large quantities of fertilizer and pesticides. Water contamination by pesticides is highlighted by monitoring networks, at local and national levels. Control and reduction of contamination are major issues, for the protection of drinking water resources and aquatic ecosystems. Thus, understanding and quantifying the mechanisms involved in mobilization, transfer and dissipation of these substances can help to perform risk of water contamination diagnosis, and to estimate the effectiveness of corrective solutions.