Preparation of crescent-shaped basins for planting prosopis seedlings. The system forms a network of small sloping basins catching and holding water for each tree. - - Forestry Development/Reforestation: GCP/CVU.105/BEL. The objectives of this large FAO forestry project financed by Belgium, which started in January 1978, are to combat desertification, restore the ecological enviroment by reconstituting a vegetative cover, provide fuelwood and forage for grazing and create