Economywide impacts of climate change on agriculture in Sub-Saharan Africa
Two possible adaptation scenarios to climate change for Sub-Saharan Africa are analyzed under the SRES B2 scenario. The first scenario doubles the irrigated area in Sub-Saharan Africa by 2050, compared to the baseline, but keeps total crop area constant. The second scenario increases both rainfed an...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2013
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/67281 |
| _version_ | 1855530862276247552 |
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| author | Calzadilla, Alvaro Zhu, Tingju Rehdanz, Katrin Tol, Richard S.J. Ringler, Claudia |
| author_browse | Calzadilla, Alvaro Rehdanz, Katrin Ringler, Claudia Tol, Richard S.J. Zhu, Tingju |
| author_facet | Calzadilla, Alvaro Zhu, Tingju Rehdanz, Katrin Tol, Richard S.J. Ringler, Claudia |
| author_sort | Calzadilla, Alvaro |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Two possible adaptation scenarios to climate change for Sub-Saharan Africa are analyzed under the SRES B2 scenario. The first scenario doubles the irrigated area in Sub-Saharan Africa by 2050, compared to the baseline, but keeps total crop area constant. The second scenario increases both rainfed and irrigated crop yields by 25% for all Sub-Saharan African countries. The two adaptation scenarios are analyzed with IMPACT, a partial equilibrium agricultural sector model combined with a water simulation module, and with GTAP-W, a general equilibrium model including water resources. The methodology combines the advantages of a partial equilibrium approach, which considers detailed water-agriculture linkages, with a general equilibrium approach, which takes into account linkages between agriculture and nonagricultural sectors and includes a full treatment of factor markets. The efficacy of the two scenarios as adaptation measures to cope with climate change is discussed. Due to the limited initial irrigated area in the region, an increase in agricultural productivity achieves better outcomes than an expansion of irrigated area. Even though Sub-Saharan Africa is not a key contributor to global food production (rainfed, irrigated or total), both scenarios help lower world food prices, stimulating national and international food markets. |
| format | Journal Article |
| id | CGSpace67281 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace672812025-12-08T09:54:28Z Economywide impacts of climate change on agriculture in Sub-Saharan Africa Calzadilla, Alvaro Zhu, Tingju Rehdanz, Katrin Tol, Richard S.J. Ringler, Claudia climate change Two possible adaptation scenarios to climate change for Sub-Saharan Africa are analyzed under the SRES B2 scenario. The first scenario doubles the irrigated area in Sub-Saharan Africa by 2050, compared to the baseline, but keeps total crop area constant. The second scenario increases both rainfed and irrigated crop yields by 25% for all Sub-Saharan African countries. The two adaptation scenarios are analyzed with IMPACT, a partial equilibrium agricultural sector model combined with a water simulation module, and with GTAP-W, a general equilibrium model including water resources. The methodology combines the advantages of a partial equilibrium approach, which considers detailed water-agriculture linkages, with a general equilibrium approach, which takes into account linkages between agriculture and nonagricultural sectors and includes a full treatment of factor markets. The efficacy of the two scenarios as adaptation measures to cope with climate change is discussed. Due to the limited initial irrigated area in the region, an increase in agricultural productivity achieves better outcomes than an expansion of irrigated area. Even though Sub-Saharan Africa is not a key contributor to global food production (rainfed, irrigated or total), both scenarios help lower world food prices, stimulating national and international food markets. 2013 2015-07-11T17:55:19Z 2015-07-11T17:55:19Z Journal Article https://hdl.handle.net/10568/67281 en Open Access Elsevier Calzadilla, A., Zhu, T., Rehdanz, K., Tol, R. S. J., & Ringler, C. (2013). Economywide impacts of climate change on agriculture in Sub-Saharan Africa. In Ecological Economics (Vol. 93, pp. 150–165). Elsevier BV. https://doi.org/10.1016/j.ecolecon.2013.05.006 |
| spellingShingle | climate change Calzadilla, Alvaro Zhu, Tingju Rehdanz, Katrin Tol, Richard S.J. Ringler, Claudia Economywide impacts of climate change on agriculture in Sub-Saharan Africa |
| title | Economywide impacts of climate change on agriculture in Sub-Saharan Africa |
| title_full | Economywide impacts of climate change on agriculture in Sub-Saharan Africa |
| title_fullStr | Economywide impacts of climate change on agriculture in Sub-Saharan Africa |
| title_full_unstemmed | Economywide impacts of climate change on agriculture in Sub-Saharan Africa |
| title_short | Economywide impacts of climate change on agriculture in Sub-Saharan Africa |
| title_sort | economywide impacts of climate change on agriculture in sub saharan africa |
| topic | climate change |
| url | https://hdl.handle.net/10568/67281 |
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