Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices
Climate change is estimated to exacerbate existing challenges faced by smallholder farmers in Sub-Sahara Africa. However, limited studies quantify the extent of variation in climate change impact under these systems at the local scale. The Decision Support System for Agro-technological Transfer (DSS...
| Autores principales: | , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
MDPI
2019
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/107772 |
| _version_ | 1855529429676064768 |
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| author | Freduah, Bright S MacCarthy, Dilys Sefakor Adam, Myriam Ly, Mouhamed Ruane, Alex C. Timpong-Jones, Eric C Sibiry Traoré, Pierre C. Boote, Kenneth J. Porter, Cheryl Adiku, Samuel G.K. |
| author_browse | Adam, Myriam Adiku, Samuel G.K. Boote, Kenneth J. Freduah, Bright S Ly, Mouhamed MacCarthy, Dilys Sefakor Porter, Cheryl Ruane, Alex C. Sibiry Traoré, Pierre C. Timpong-Jones, Eric C |
| author_facet | Freduah, Bright S MacCarthy, Dilys Sefakor Adam, Myriam Ly, Mouhamed Ruane, Alex C. Timpong-Jones, Eric C Sibiry Traoré, Pierre C. Boote, Kenneth J. Porter, Cheryl Adiku, Samuel G.K. |
| author_sort | Freduah, Bright S |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Climate change is estimated to exacerbate existing challenges faced by smallholder farmers in Sub-Sahara Africa. However, limited studies quantify the extent of variation in climate change impact under these systems at the local scale. The Decision Support System for Agro-technological Transfer (DSSAT) was used to quantify variation in climate change impacts on maize yield under current agricultural practices in semi-arid regions of Senegal (Nioro du Rip) and Ghana (Navrongo and Tamale). Multi-benchmark climate models (Mid-Century, 2040–2069 for two Representative Concentration Pathways, RCP4.5 and RCP8.5), and multiple soil and management information from agronomic surveys were used as input for DSSAT. The average impact of climate scenarios on grain yield among farms ranged between −9% and −39% across sites. Substantial variation in climate response exists across farms in the same farming zone with relative standard deviations from 8% to 117% at Nioro du Rip, 13% to 64% in Navrongo and 9% to 37% in Tamale across climate models. Variations in fertilizer application, planting dates and soil types explained the variation in the impact among farms. This study provides insight into the complexities of the impact of climate scenarios on maize yield and the need for better representation of heterogeneous farming systems for optimized outcomes in adaptation and resilience planning in smallholder systems |
| format | Journal Article |
| id | CGSpace107772 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | CGSpace1077722025-02-19T14:32:26Z Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices Freduah, Bright S MacCarthy, Dilys Sefakor Adam, Myriam Ly, Mouhamed Ruane, Alex C. Timpong-Jones, Eric C Sibiry Traoré, Pierre C. Boote, Kenneth J. Porter, Cheryl Adiku, Samuel G.K. climate change agriculture cereals food security Climate change is estimated to exacerbate existing challenges faced by smallholder farmers in Sub-Sahara Africa. However, limited studies quantify the extent of variation in climate change impact under these systems at the local scale. The Decision Support System for Agro-technological Transfer (DSSAT) was used to quantify variation in climate change impacts on maize yield under current agricultural practices in semi-arid regions of Senegal (Nioro du Rip) and Ghana (Navrongo and Tamale). Multi-benchmark climate models (Mid-Century, 2040–2069 for two Representative Concentration Pathways, RCP4.5 and RCP8.5), and multiple soil and management information from agronomic surveys were used as input for DSSAT. The average impact of climate scenarios on grain yield among farms ranged between −9% and −39% across sites. Substantial variation in climate response exists across farms in the same farming zone with relative standard deviations from 8% to 117% at Nioro du Rip, 13% to 64% in Navrongo and 9% to 37% in Tamale across climate models. Variations in fertilizer application, planting dates and soil types explained the variation in the impact among farms. This study provides insight into the complexities of the impact of climate scenarios on maize yield and the need for better representation of heterogeneous farming systems for optimized outcomes in adaptation and resilience planning in smallholder systems 2019-10-15 2020-03-13T20:11:53Z 2020-03-13T20:11:53Z Journal Article https://hdl.handle.net/10568/107772 en Open Access MDPI Freduah BS, MacCarthy DS, Adam M, Ly M, Ruane AC, Timpong-Jones EC, Traore PS, Boote KJ, Porter C, Adiku SGK. 2019. Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices. Agronomy 9(10): 639. |
| spellingShingle | climate change agriculture cereals food security Freduah, Bright S MacCarthy, Dilys Sefakor Adam, Myriam Ly, Mouhamed Ruane, Alex C. Timpong-Jones, Eric C Sibiry Traoré, Pierre C. Boote, Kenneth J. Porter, Cheryl Adiku, Samuel G.K. Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices |
| title | Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices |
| title_full | Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices |
| title_fullStr | Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices |
| title_full_unstemmed | Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices |
| title_short | Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices |
| title_sort | sensitivity of maize yield in smallholder systems to climate scenarios in semi arid regions of west africa accounting for variability in farm management practices |
| topic | climate change agriculture cereals food security |
| url | https://hdl.handle.net/10568/107772 |
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