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

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cg.coverage.countryEthiopia
cg.coverage.iso3166-alpha2ET
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.creator.identifierKatrien Descheemaeker: 0000-0003-0184-2034
cg.subject.ilriRANGELANDSen
dc.contributor.authorDescheemaeker, Katrien K.en
dc.contributor.authorPoesen, J.en
dc.contributor.authorBorselli, L.en
dc.contributor.authorNyssen, Janen
dc.contributor.authorRaes, Dirken
dc.contributor.authorHaile, M.en
dc.contributor.authorMuys, B.en
dc.contributor.authorDeckers, J.en
dc.date.accessioned2014-06-13T14:48:14Zen
dc.date.available2014-06-13T14:48:14Zen
dc.identifier.urihttps://hdl.handle.net/10568/40704
dc.titleRunoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopiaen
dcterms.abstractDaily 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.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationDescheemaeker, 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.en
dcterms.extentp. 4097-4105en
dcterms.issued2008
dcterms.languageen
dcterms.subjecthydrologyen
dcterms.subjectsoil conservationen
dcterms.subjectwater conservationen
dcterms.subjectrangelandsen
dcterms.subjecthighlandsen
dcterms.subjectvegetationen
dcterms.subjecteucalyptusen
dcterms.subjectrainfall-runoff relationshipsen
dcterms.typeJournal Article

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