Soil conservation must be based on a soil survey and a map of the watershed. The best way to proceed is to start from the highest area, then to construct terraces with minimum slope to carry runoff to a stream or channel/ a second terrace diversion ditch should be built between 30-50 meters below the first. If possible it should be parallel to the upper terrace if tractors are used. If the area above the upper terrace is not cultivated, the upper terrace must be able to divert flow from the upper area to an existing waterway. Terraces that are too small will overflow and a concentrated flow will cause more erosion.
Published by Abba Niv, Drainage Engieer at Zafrir Weinstein Engineers PM
Soil conservation must be based on a soil survey and a map of the watershed. The best way to proceed is to start from the highest area, then to construct terraces with minimum slope to carry runoff to a stream or channel/ a second terrace diversion ditch should be built between 30-50 meters below the first. If possible it should be parallel to the upper terrace if tractors are used.
If the area above the upper terrace is not cultivated, the upper terrace must be able to divert flow from the upper area to an existing waterway. Terraces that are too small will overflow and a concentrated flow will cause more erosion.