Terrasses en talus (remblais) associées à un fossé, le long des courbes de niveau ou selon une douce pente latérale. Le sol est rejeté sur la partie supérieure du fossé pour former le talus, souvent stabilisé par la plantation d’herbes fourragères.
Grassing recharge zones of agricultural drainage systems significantly improves the quality of drainage water. It can be a useful, effective and relatively cheap measure for improvement of shallow groundwater quality.
Biofilters or “bioreactors” connected to agricultural tile drains are relatively inexpensive and space-saving measures with considerable potential to improve the quality of drainage water.