African Highlands Initiative2009-04-302009-04-302007http://hdl.handle.net/10625/38131application/pdfenAFRICAN HIGHLANDSHILLSENVIRONMENTAL DEGRADATIONAGRICULTURAL PRODUCTIVITYFARMING SYSTEMSSUSTAINABLE AGRICULTUREAFRICA SOUTH OF SAHARAASARECA [Association for Strengthening Agricultural Research in Eastern and Central Africa] NRM [natural resources management] strategyWorking Paper