1. Department of Geographic Information Science, Hawassa University Wondo Genet College of Forestry and Natural Resources, Shashemene, Ethiopia
2. Department of Environmental Science, Hawassa University Wondo Genet College of Forestry and Natural Resources, Shashemene, Ethiopia
3. College of Soil and Water Conservation Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China
4. Department of Natural Resource Management, Wachemo University, Hossana, Ethiopia