David Njeru Kibuthi shows how to construct a stone line on moderate slopes with many stones and describes the many benefits he gets since he has realized this technology on his farm.
Infilling of gullies with vegetative structures reduces erosion, slows down the water runoff and collects the sediments. Willow cuttings are planted in the gullies and branches are woven into them. These barriers, built every few meters, help to stabilize the soil and to fill up the gully.