Institution: | aDepartment of Land Resources Management and Environmental Protection, Mekelle University, P.O. Box 231, Mekelle, Ethiopia;bPhysical and Regional Geography Research Group, K.U. Leuven, Redingenstraat 16, B-3000 Leuven, Belgium;cInstitute of Land and Water Management, K.U. Leuven, Vital Decosterstraat 102, B-3000 Leuven, Belgium;dAgriculture and Forestry Economics, Royal Museum for Central Africa, B-3080 Tervuren, Belgium |