说明4834/I/1, 3a, 9a, 12a, 15a, 23a. UNSF/FAO SAN FRANCINSCO RIVER VALLEY IRRIGATION PROJECT. North-East Brazil, 1963. The Food and Agriculture Organization of the United Nations (FAO) as executing agency for the U.S. Special Fund is assisting Brazilian Government and Government Agency SUDENE devise a project for the irrigation of this river valley, where periodic droughts kill cattle, destroy crops to force men. to flee. North East Brazil covers over-1-1/2 million square kilometres and is inhabited by 25 million people. Tropical crops and fodder for livestock industry could be grown under irrigation. Refugees in Joaceiro waiting for a relief distribution of food. FAO photo by R. Coral