Affiliation: | 1. Soil Physics and Land Management Group, Wageningen University, Droevendaalsesteeg 4, 6708 PB, Wageningen, The Netherlands 2. School of Biosystems and Environmental Engineering, Hawassa University, P.O. Box 05, Hawassa, Ethiopia 3. International Livestock Research Institute, P.O. Box 5689, Addis Ababa, Ethiopia 4. Department of Geography and Environmental Studies, Addis Ababa University, P.O. Box 150372, Addis Ababa, Ethiopia
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