Rainfall erosivity and erodibility of inceptisols in the Southwest Colombian Andes
The rainfall erosivity (R) and soil erodibility (K) factors of the Universal Soil Loss Equation (USLE) were determined on two sites in the Colombian Cauca Department over a five year period when rainfall was mostly lower than average. The results showed that the high erosion potential of the soils c...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Cambridge University Press
1996
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/44001 |
| _version_ | 1855535468688441344 |
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| author | Ruppenthal, M Leihner, D.E. Hilger, TH Castillo Franco, J.A. |
| author_browse | Castillo Franco, J.A. Hilger, TH Leihner, D.E. Ruppenthal, M |
| author_facet | Ruppenthal, M Leihner, D.E. Hilger, TH Castillo Franco, J.A. |
| author_sort | Ruppenthal, M |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The rainfall erosivity (R) and soil erodibility (K) factors of the Universal Soil Loss Equation (USLE) were determined on two sites in the Colombian Cauca Department over a five year period when rainfall was mostly lower than average. The results showed that the high erosion potential of the soils can be attributed more to high rain erosivity than soil erodibility. The R factor explained between 59 and 81% of the variation in soil loss recorded on continuously clean-tilled fallow plots. The erodibility of Inceptisols in the study region is classified as low. Values for soil erodibility (K) ranged from 0.012 to 0.015 (measured in SI units) in the fifth year of permanent bare fallowing. K factors were higher in the rainy than in the dry season. Soils, previously under grass vegetation, were very resistant to erosion in the first two years of bare fallowing. In the third year erodibility increased sharply and continued to increase steadily until the sixth year. K factors predicted by the USLE nomograph underestimated the empirically-determined erodibility of these highly aggregated clay soils. |
| format | Journal Article |
| id | CGSpace44001 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1996 |
| publishDateRange | 1996 |
| publishDateSort | 1996 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace440012024-11-15T08:52:55Z Rainfall erosivity and erodibility of inceptisols in the Southwest Colombian Andes Ruppenthal, M Leihner, D.E. Hilger, TH Castillo Franco, J.A. eroded soil erosion rain soil testing dry season wet season suelo erosionado erosión lluvia análisis del suelo estación seca estación húmeda The rainfall erosivity (R) and soil erodibility (K) factors of the Universal Soil Loss Equation (USLE) were determined on two sites in the Colombian Cauca Department over a five year period when rainfall was mostly lower than average. The results showed that the high erosion potential of the soils can be attributed more to high rain erosivity than soil erodibility. The R factor explained between 59 and 81% of the variation in soil loss recorded on continuously clean-tilled fallow plots. The erodibility of Inceptisols in the study region is classified as low. Values for soil erodibility (K) ranged from 0.012 to 0.015 (measured in SI units) in the fifth year of permanent bare fallowing. K factors were higher in the rainy than in the dry season. Soils, previously under grass vegetation, were very resistant to erosion in the first two years of bare fallowing. In the third year erodibility increased sharply and continued to increase steadily until the sixth year. K factors predicted by the USLE nomograph underestimated the empirically-determined erodibility of these highly aggregated clay soils. 1996-01 2014-10-02T08:33:05Z 2014-10-02T08:33:05Z Journal Article https://hdl.handle.net/10568/44001 en Limited Access Cambridge University Press |
| spellingShingle | eroded soil erosion rain soil testing dry season wet season suelo erosionado erosión lluvia análisis del suelo estación seca estación húmeda Ruppenthal, M Leihner, D.E. Hilger, TH Castillo Franco, J.A. Rainfall erosivity and erodibility of inceptisols in the Southwest Colombian Andes |
| title | Rainfall erosivity and erodibility of inceptisols in the Southwest Colombian Andes |
| title_full | Rainfall erosivity and erodibility of inceptisols in the Southwest Colombian Andes |
| title_fullStr | Rainfall erosivity and erodibility of inceptisols in the Southwest Colombian Andes |
| title_full_unstemmed | Rainfall erosivity and erodibility of inceptisols in the Southwest Colombian Andes |
| title_short | Rainfall erosivity and erodibility of inceptisols in the Southwest Colombian Andes |
| title_sort | rainfall erosivity and erodibility of inceptisols in the southwest colombian andes |
| topic | eroded soil erosion rain soil testing dry season wet season suelo erosionado erosión lluvia análisis del suelo estación seca estación húmeda |
| url | https://hdl.handle.net/10568/44001 |
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