Climate suitability predictions for the cultivation of macadamia (Macadamia integrifolia) in Malawi using climate change scenarios
Climate change is altering suitable areas of crop species worldwide, with cascading effects on people reliant upon those crop species as food sources and for income generation. Macadamia is one of Malawi’s most important and profitable crop species; however, climate change threatens its production....
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Public Library of Science
2021
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| Online Access: | https://hdl.handle.net/10568/115351 |
| _version_ | 1855524228999151616 |
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| author | Junior Zuza, Emmanuel Maseyk, Kadmiel Bhagwat, Shonil A. Sousa, Kauê de Emmott, Andrew Rawes, William Negusse Araya, Yoseph |
| author_browse | Bhagwat, Shonil A. Emmott, Andrew Junior Zuza, Emmanuel Maseyk, Kadmiel Negusse Araya, Yoseph Rawes, William Sousa, Kauê de |
| author_facet | Junior Zuza, Emmanuel Maseyk, Kadmiel Bhagwat, Shonil A. Sousa, Kauê de Emmott, Andrew Rawes, William Negusse Araya, Yoseph |
| author_sort | Junior Zuza, Emmanuel |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Climate change is altering suitable areas of crop species worldwide, with cascading effects on people reliant upon those crop species as food sources and for income generation. Macadamia is one of Malawi’s most important and profitable crop species; however, climate change threatens its production. Thus, this study’s objective is to quantitatively examine the potential impacts of climate change on the climate suitability for macadamia in Malawi. We utilized an ensemble model approach to predict the current and future (2050s) suitability of macadamia under two Representative Concentration Pathways (RCPs). We achieved a good model fit in determining suitability classes for macadamia (AUC = 0.9). The climatic variables that strongly influence macadamia’s climatic suitability in Malawi are suggested to be the precipitation of the driest month (29.1%) and isothermality (17.3%). Under current climatic conditions, 57% (53,925 km2) of Malawi is climatically suitable for macadamia. Future projections suggest that climate change will decrease the suitable areas for macadamia by 18% (17,015 km2) and 21.6% (20,414 km2) based on RCP 4.5 and RCP 8.5, respectively, with the distribution of suitability shifting northwards in the 2050s. The southern and central regions of the country will suffer the greatest losses (≥ 8%), while the northern region will be the least impacted (4%). We conclude that our study provides critical evidence that climate change will reduce the suitable areas for macadamia production in Malawi, depending on climate drivers. Therefore area-specific adaptation strategies are required to build resilience among producers. |
| format | Journal Article |
| id | CGSpace115351 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Public Library of Science |
| publisherStr | Public Library of Science |
| record_format | dspace |
| spelling | CGSpace1153512025-12-08T09:54:28Z Climate suitability predictions for the cultivation of macadamia (Macadamia integrifolia) in Malawi using climate change scenarios Junior Zuza, Emmanuel Maseyk, Kadmiel Bhagwat, Shonil A. Sousa, Kauê de Emmott, Andrew Rawes, William Negusse Araya, Yoseph climate change adaptation climatic factors crop production macadamia ternifolia food security environmental modelling adaptación al cambio climático factores climáticos producción vegetal Climate change is altering suitable areas of crop species worldwide, with cascading effects on people reliant upon those crop species as food sources and for income generation. Macadamia is one of Malawi’s most important and profitable crop species; however, climate change threatens its production. Thus, this study’s objective is to quantitatively examine the potential impacts of climate change on the climate suitability for macadamia in Malawi. We utilized an ensemble model approach to predict the current and future (2050s) suitability of macadamia under two Representative Concentration Pathways (RCPs). We achieved a good model fit in determining suitability classes for macadamia (AUC = 0.9). The climatic variables that strongly influence macadamia’s climatic suitability in Malawi are suggested to be the precipitation of the driest month (29.1%) and isothermality (17.3%). Under current climatic conditions, 57% (53,925 km2) of Malawi is climatically suitable for macadamia. Future projections suggest that climate change will decrease the suitable areas for macadamia by 18% (17,015 km2) and 21.6% (20,414 km2) based on RCP 4.5 and RCP 8.5, respectively, with the distribution of suitability shifting northwards in the 2050s. The southern and central regions of the country will suffer the greatest losses (≥ 8%), while the northern region will be the least impacted (4%). We conclude that our study provides critical evidence that climate change will reduce the suitable areas for macadamia production in Malawi, depending on climate drivers. Therefore area-specific adaptation strategies are required to build resilience among producers. 2021-09-09 2021-10-08T12:42:00Z 2021-10-08T12:42:00Z Journal Article https://hdl.handle.net/10568/115351 en Open Access application/pdf Public Library of Science Junior Zuza, E.l; Maseyk, K.; Bhagwat, S.A.; de Sousa, K.; Emmott, A; Rawes, W.; Negusse Araya, Y. (2021) Climate suitability predictions for the cultivation of macadamia (Macadamia integrifolia) in Malawi using climate change scenarios. PLoS ONE 16(9): e0257007. 10 p. ISSN: 1932-6203 |
| spellingShingle | climate change adaptation climatic factors crop production macadamia ternifolia food security environmental modelling adaptación al cambio climático factores climáticos producción vegetal Junior Zuza, Emmanuel Maseyk, Kadmiel Bhagwat, Shonil A. Sousa, Kauê de Emmott, Andrew Rawes, William Negusse Araya, Yoseph Climate suitability predictions for the cultivation of macadamia (Macadamia integrifolia) in Malawi using climate change scenarios |
| title | Climate suitability predictions for the cultivation of macadamia (Macadamia integrifolia) in Malawi using climate change scenarios |
| title_full | Climate suitability predictions for the cultivation of macadamia (Macadamia integrifolia) in Malawi using climate change scenarios |
| title_fullStr | Climate suitability predictions for the cultivation of macadamia (Macadamia integrifolia) in Malawi using climate change scenarios |
| title_full_unstemmed | Climate suitability predictions for the cultivation of macadamia (Macadamia integrifolia) in Malawi using climate change scenarios |
| title_short | Climate suitability predictions for the cultivation of macadamia (Macadamia integrifolia) in Malawi using climate change scenarios |
| title_sort | climate suitability predictions for the cultivation of macadamia macadamia integrifolia in malawi using climate change scenarios |
| topic | climate change adaptation climatic factors crop production macadamia ternifolia food security environmental modelling adaptación al cambio climático factores climáticos producción vegetal |
| url | https://hdl.handle.net/10568/115351 |
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