This leaflet describes one method of rainwater harvesting – using hoops. This method is particularly suited to pasture production in dry areas.

This paper is an attempt to draw together and synthesise as much of the existing documentation as is possible within a limited time period, analyse it systematically, and draw out the main conclusions, lessons learned, and gaps in knowledge. The report tries to identify which RWM innovations have worked when, where and why; what did not work out very well, and why; and what lessons can be extracted from past experience to guide CPWF research in the Nile over the next 4–5 years.