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Natural ground catchment and Open water reservoir

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'''Ox-drawn plough for desilting'''

The use of ox-drawn ploughs and scoops for desilting ponds in rangeland areas is both feasible and inexpensive, reports ILCA, in Addis Ababa. The method should prove directly beneficial to and applicable by pastoral groups.

Since 1967, an estimated US$50 million has been spent on pond/dam construction in East Africa and most of them are now abandoned due to heavy siltation. In Ethiopia, the siltation rate in the southern rangelands was estimated at 1,000/2,400 cubic metres per pond, per year. Local pastoral groups were unable to excavate more than 15 to 20 cubic metres by hand per year.

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