1. Department of Irrigation, Drainage and Water Harvesting, Oromia Agricultural Research Institute, Sinana Agricultural Research Center, Bale-Robe, Ethiopia
2. Department of Agro meteorologist and Natural Risk Management, Oromia Agricultural Research Institute, Sinana Agricultural Research Center, Bale-Robe, Ethiopia
3. Department of Forestry, Faculty of Resource Management and Economics, Wollega University, Shambu, Ethiopia