1. Natural Resources Management Department, Dilla University, Dilla, Ethiopia
2. Department of Soil Science and Resource Conservation, National University of Lesotho, Roma, Lesotho
3. Forestry and Natural Resources Department, Wendo Genent College of Forestry and Natural Resources, Hawass University, Hawassa, Ethiopia
4. International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Addis Ababa, Ethiopia