Affiliation: | Department of Land Resources Management and Environmental Protection, Mekelle University,P.O.Box 231, Mekelle, Ethiopia;Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences,P.O.Box 5003, 1432(A)s, Norway;Department of Dryland Crop and Horticultural Sciences,Mekelle University, P.O.Box 231, Mekelle, Ethiopia;Department of Agronomy, University of Fort Hare,PBX1314, Alice 5700, South Africa;World Agroforestry Center, ILRI Campus,P.O.Box 5689, Addis Ababa, Ethiopia;School of Agricultural, Forest and Food Sciences, Bern University of Applied Sciences, L(a)nggasse 85,3052 Zollikofen, Switzerland |