Mapping soil erosion hotspots and assessing the potential impacts of land management practices in the highlands of Ethiopia
An enormous effort is underway in Ethiopia to address soil erosion and restore overall land productivity. Modelling and participatory approaches can be used to delineate erosion hotspots, plan site- and context-specific interventions and assess their impacts. In this study, we employed a modelling i...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2017
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/80914 |
| _version_ | 1855541328945872896 |
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| author | Tamene, Lulseged D. Adimassu, Zenebe Ellison, James Yaekob, Tesfaye Woldearegay, Kifle Mekonnen, Kindu Thorne, Peter J. Le, Quang Bao |
| author_browse | Adimassu, Zenebe Ellison, James Le, Quang Bao Mekonnen, Kindu Tamene, Lulseged D. Thorne, Peter J. Woldearegay, Kifle Yaekob, Tesfaye |
| author_facet | Tamene, Lulseged D. Adimassu, Zenebe Ellison, James Yaekob, Tesfaye Woldearegay, Kifle Mekonnen, Kindu Thorne, Peter J. Le, Quang Bao |
| author_sort | Tamene, Lulseged D. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | An enormous effort is underway in Ethiopia to address soil erosion and restore overall land productivity. Modelling and participatory approaches can be used to delineate erosion hotspots, plan site- and context-specific interventions and assess their impacts. In this study, we employed a modelling interface developed based on the Revised Universal Soil Loss Equation adjusted by the sediment delivery ratio to map the spatial distribution of net soil loss and identify priority areas of intervention. Using the modelling interface, we also simulated the potential impacts of different soil and water conservation measures in reducing net soil loss. Model predictions showed that net soil loss in the study area ranges between 0.4 and 88 t ha− 1 yr− 1 with an average of 12 t ha− 1 yr− 1. The dominant soil erosion hotspots were associated with steep slopes, gullies, communal grazing and cultivated areas. The average soil loss observed in this study is higher than the tolerable soil loss rate estimated for the highland of Ethiopia. The scenario analysis results showed that targeting hotspot areas where soil loss exceeds 10 t ha− 1 yr− 1 could reduce net soil loss to the tolerable limit (< 2 t ha− 1 yr− 1). The spatial distribution of soil loss and the sediment yield reduction potential of different options provided essential information to guide prioritization and targeting. In addition, the results can help promoting awareness within the local community of the severity of the soil erosion problem and the potential of management interventions. Future work should include cost-benefit and tradeoff analyses of the various management options for achieving a given level of erosion reduction. |
| format | Journal Article |
| id | CGSpace80914 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace809142025-11-12T06:51:24Z Mapping soil erosion hotspots and assessing the potential impacts of land management practices in the highlands of Ethiopia Tamene, Lulseged D. Adimassu, Zenebe Ellison, James Yaekob, Tesfaye Woldearegay, Kifle Mekonnen, Kindu Thorne, Peter J. Le, Quang Bao land degradation degradación de tierras ordenación de tierras soil land management erosion An enormous effort is underway in Ethiopia to address soil erosion and restore overall land productivity. Modelling and participatory approaches can be used to delineate erosion hotspots, plan site- and context-specific interventions and assess their impacts. In this study, we employed a modelling interface developed based on the Revised Universal Soil Loss Equation adjusted by the sediment delivery ratio to map the spatial distribution of net soil loss and identify priority areas of intervention. Using the modelling interface, we also simulated the potential impacts of different soil and water conservation measures in reducing net soil loss. Model predictions showed that net soil loss in the study area ranges between 0.4 and 88 t ha− 1 yr− 1 with an average of 12 t ha− 1 yr− 1. The dominant soil erosion hotspots were associated with steep slopes, gullies, communal grazing and cultivated areas. The average soil loss observed in this study is higher than the tolerable soil loss rate estimated for the highland of Ethiopia. The scenario analysis results showed that targeting hotspot areas where soil loss exceeds 10 t ha− 1 yr− 1 could reduce net soil loss to the tolerable limit (< 2 t ha− 1 yr− 1). The spatial distribution of soil loss and the sediment yield reduction potential of different options provided essential information to guide prioritization and targeting. In addition, the results can help promoting awareness within the local community of the severity of the soil erosion problem and the potential of management interventions. Future work should include cost-benefit and tradeoff analyses of the various management options for achieving a given level of erosion reduction. 2017-09 2017-05-08T17:47:23Z 2017-05-08T17:47:23Z Journal Article https://hdl.handle.net/10568/80914 en Open Access application/pdf Elsevier Tamene, L., Adimassu, Z., Ellison, J., Yaekob, T., Woldearegay, K., Mekonnen, K., Thorne, P. and Quang Bao Le. 2017. Mapping soil erosion hotspots and assessing the potential impacts of land management practices in the highlands of Ethiopia. Geomorphology 292(1):153–163. |
| spellingShingle | land degradation degradación de tierras ordenación de tierras soil land management erosion Tamene, Lulseged D. Adimassu, Zenebe Ellison, James Yaekob, Tesfaye Woldearegay, Kifle Mekonnen, Kindu Thorne, Peter J. Le, Quang Bao Mapping soil erosion hotspots and assessing the potential impacts of land management practices in the highlands of Ethiopia |
| title | Mapping soil erosion hotspots and assessing the potential impacts of land management practices in the highlands of Ethiopia |
| title_full | Mapping soil erosion hotspots and assessing the potential impacts of land management practices in the highlands of Ethiopia |
| title_fullStr | Mapping soil erosion hotspots and assessing the potential impacts of land management practices in the highlands of Ethiopia |
| title_full_unstemmed | Mapping soil erosion hotspots and assessing the potential impacts of land management practices in the highlands of Ethiopia |
| title_short | Mapping soil erosion hotspots and assessing the potential impacts of land management practices in the highlands of Ethiopia |
| title_sort | mapping soil erosion hotspots and assessing the potential impacts of land management practices in the highlands of ethiopia |
| topic | land degradation degradación de tierras ordenación de tierras soil land management erosion |
| url | https://hdl.handle.net/10568/80914 |
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