Runoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopia
Daily 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 p...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
2008
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/40704 |
| _version_ | 1855540132642291712 |
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| author | Descheemaeker, Katrien K. Poesen, J. Borselli, L. Nyssen, Jan Raes, Dirk Haile, M. Muys, B. Deckers, J. |
| author_browse | Borselli, L. Deckers, J. Descheemaeker, Katrien K. Haile, M. Muys, B. Nyssen, Jan Poesen, J. Raes, Dirk |
| author_facet | Descheemaeker, Katrien K. Poesen, J. Borselli, L. Nyssen, Jan Raes, Dirk Haile, M. Muys, B. Deckers, J. |
| author_sort | Descheemaeker, Katrien K. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Daily 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. |
| format | Journal Article |
| id | CGSpace40704 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| record_format | dspace |
| spelling | CGSpace407042024-03-06T10:16:43Z Runoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopia Descheemaeker, Katrien K. Poesen, J. Borselli, L. Nyssen, Jan Raes, Dirk Haile, M. Muys, B. Deckers, J. hydrology soil conservation water conservation rangelands highlands vegetation eucalyptus rainfall-runoff relationships Daily 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. 2008 2014-06-13T14:48:14Z 2014-06-13T14:48:14Z Journal Article https://hdl.handle.net/10568/40704 en Limited Access Descheemaeker, 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. |
| spellingShingle | hydrology soil conservation water conservation rangelands highlands vegetation eucalyptus rainfall-runoff relationships Descheemaeker, Katrien K. Poesen, J. Borselli, L. Nyssen, Jan Raes, Dirk Haile, M. Muys, B. Deckers, J. Runoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopia |
| title | Runoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopia |
| title_full | Runoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopia |
| title_fullStr | Runoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopia |
| title_full_unstemmed | Runoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopia |
| title_short | Runoff curve numbers for steep hillslopes with natural vegetation in semi-arid tropical highlands, northern Ethiopia |
| title_sort | runoff curve numbers for steep hillslopes with natural vegetation in semi arid tropical highlands northern ethiopia |
| topic | hydrology soil conservation water conservation rangelands highlands vegetation eucalyptus rainfall-runoff relationships |
| url | https://hdl.handle.net/10568/40704 |
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