Runoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopia

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dc.creatorDescheemaeker, Katrien K.
dc.creatorPoesen, J.
dc.creatorBorselli, L.
dc.creatorNyssen, Jan
dc.creatorRaes, Dirk
dc.creatorHaile, M.
dc.creatorMuys, B.
dc.creatorDeckers, J.
dc.date2008
dc.date2014-06-13T14:48:14Z
dc.date2014-06-13T14:48:14Z
dc.date.accessioned2026-06-27T18:42:15Z
dc.descriptionDaily runoff from 27 plots (5 m ? 2 m) recorded during two rainy seasons in the Tigray highlands (Ethiopia) were analysed together with daily rainfall to calculate runoff curve numbers for hillslopes covered by semi-natural vegetation in varying stages of vegetation restoration. Curve number model parameters were derived using a least squares fitting procedure on the collected rainfall-runoff datasets. Curve numbers varied from 29 to 97. Land use type was an important explanatory factor for the variation in curve numbers, whereas hydrologic soil group was not. Curve numbers were negatively correlated with vegetation cover. Taking into account antecedent soil moisture conditions did not improve runoff prediction using the curve number method. As runoff prediction was less accurate in areas with low curve numbers, two separate regression functions relating curve numbers with vegetation cover were proposed for different land use types.
dc.identifierhttps://hdl.handle.net/10568/40704
dc.identifier.urihttp://hdl.handle.net/123456789/163172
dc.languageen
dc.rightsLimited Access
dc.sourceDescheemaeker, Katrien; Poesen, J.; Borselli, L.; Nyssen, J.; Raes, D.; Haile, M.; Muys, B.; Deckers, J. 2008. Runoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopia. Hydrological Processes, 22:4097-4105.
dc.subjecthydrology
dc.subjectsoil conservation
dc.subjectwater conservation
dc.subjectrangelands
dc.subjecthighlands
dc.subjectvegetation
dc.subjecteucalyptus
dc.subjectrainfall-runoff relationships
dc.titleRunoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopia
dc.typeJournal Article

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Instituto Internacional para el Manejo del Agua (IWMI)