2.9. Crop species and crop rotations When considering crop species, runoff coefficient was lower under NT compared to CT in cereals ( 43%) followed by legumes ( 17%) ( Fig. 4 A). In contrast, sediment concentration and soil losses under NT were the lowest for legumes ( Fig. 4 B), with for instance sediment concentration being 77% lower for NT than CT under legumes compared to 58% for cereal-legume rotations and 52% for cereal mono-crops