The impact of climate change on the productivity of cowpea (<em>Vigna unguiculata</em>) under three different socio-economic pathways
Crop models are useful tools for simulating the impact of climate change on crop growth, development and yield. This study assesses the impact of climate change on cowpea yield in soils with low levels of phosphorous content mainly in the Sudan Savanna and Forest Transition Zone of West Africa. A c...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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PAGEPress Publications
2022-12-01
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| Series: | Italian Journal of Agronomy |
| Subjects: | |
| Online Access: | https://agronomy.it/index.php/agro/article/view/2118 |
| _version_ | 1797943385905954816 |
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| author | Grace Adusei Moses Kwame Aidoo Amit Kumar Srivastava James Yaw Asibuo Thomas Gaiser |
| author_facet | Grace Adusei Moses Kwame Aidoo Amit Kumar Srivastava James Yaw Asibuo Thomas Gaiser |
| author_sort | Grace Adusei |
| collection | DOAJ |
| description |
Crop models are useful tools for simulating the impact of climate change on crop growth, development and yield. This study assesses the impact of climate change on cowpea yield in soils with low levels of phosphorous content mainly in the Sudan Savanna and Forest Transition Zone of West Africa. A crop model solution within the general modelling framework SIMPLACE in combination with the output of four climate models for 3 contrasting shared socio-economic scenarios (SSP126, SSP370, and SSP585) was used to simulate the impact of climatic change on phenology, above ground biomass and yield parameters of cowpea. The simulations were carried out for Ouagadougou and Kumasi, representing the two major savanna biomes in West Africa (Sudan Savanna and Guinea Savanna). Previous field experimental data on the wide-spread cowpea genotype Asontem from a P-deficient soil at Kumasi (Ghana) were used to validate the SIMPLACE crop model solution. The model was able to simulate the impact of irrigation and fertilizer management on cowpea growth and yield assessment with adequate accuracy. Compared to historic simulations of the biomass and yield of cowpea, the model solution projected higher above ground biomass, and yield under the pre-dominant low input cropping systems for all the three SSPs as a result of the rise in CO2 and in spite of slightly shorted growing cycle length in both locations.
Highlights
- SIMPLACE crop model solution can reproduce cowpea yields for contrasting irrigation and fertilizer management.
- Compared to the baseline period, the model projected for the future period (2040 to 2070) slightly higher cowpea yields under three different socio-economic pathways.
- Cowpea biomass and yield remained high in future climate scenarios, despite slightly shorted growing cycle length, because of the rise in CO2.
- The projected trends have been similar in the Sudan and in the Guinea Savanna of West Africa.
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| first_indexed | 2024-04-10T20:22:14Z |
| format | Article |
| id | doaj.art-969a5e63726c4b5aa8e1f89d3aa9a096 |
| institution | Directory Open Access Journal |
| issn | 1125-4718 2039-6805 |
| language | English |
| last_indexed | 2024-04-10T20:22:14Z |
| publishDate | 2022-12-01 |
| publisher | PAGEPress Publications |
| record_format | Article |
| series | Italian Journal of Agronomy |
| spelling | doaj.art-969a5e63726c4b5aa8e1f89d3aa9a0962023-01-25T15:55:18ZengPAGEPress PublicationsItalian Journal of Agronomy1125-47182039-68052022-12-0117410.4081/ija.2022.2118The impact of climate change on the productivity of cowpea (<em>Vigna unguiculata</em>) under three different socio-economic pathwaysGrace Adusei0Moses Kwame Aidoo1Amit Kumar Srivastava2James Yaw Asibuo3Thomas Gaiser4West African Science Service Centre on Climate Change and Adapted Land Use (WASCAL), CSIR Office Complex, Accra, Ghana; Institute of Crop Science and Resource Conservation, University of Bonn, BonnPhysiology and Biochemistry Division, Cocoa Research Institute of Ghana, New Tafo - Akim, Eastern RegionInstitute of Crop Science and Resource Conservation, University of Bonn, BonnCouncil for Scientific and Industrial Research-Crops Research Institute, Kumasi, Ashanti RegionInstitute of Crop Science and Resource Conservation, University of Bonn, Bonn Crop models are useful tools for simulating the impact of climate change on crop growth, development and yield. This study assesses the impact of climate change on cowpea yield in soils with low levels of phosphorous content mainly in the Sudan Savanna and Forest Transition Zone of West Africa. A crop model solution within the general modelling framework SIMPLACE in combination with the output of four climate models for 3 contrasting shared socio-economic scenarios (SSP126, SSP370, and SSP585) was used to simulate the impact of climatic change on phenology, above ground biomass and yield parameters of cowpea. The simulations were carried out for Ouagadougou and Kumasi, representing the two major savanna biomes in West Africa (Sudan Savanna and Guinea Savanna). Previous field experimental data on the wide-spread cowpea genotype Asontem from a P-deficient soil at Kumasi (Ghana) were used to validate the SIMPLACE crop model solution. The model was able to simulate the impact of irrigation and fertilizer management on cowpea growth and yield assessment with adequate accuracy. Compared to historic simulations of the biomass and yield of cowpea, the model solution projected higher above ground biomass, and yield under the pre-dominant low input cropping systems for all the three SSPs as a result of the rise in CO2 and in spite of slightly shorted growing cycle length in both locations. Highlights - SIMPLACE crop model solution can reproduce cowpea yields for contrasting irrigation and fertilizer management. - Compared to the baseline period, the model projected for the future period (2040 to 2070) slightly higher cowpea yields under three different socio-economic pathways. - Cowpea biomass and yield remained high in future climate scenarios, despite slightly shorted growing cycle length, because of the rise in CO2. - The projected trends have been similar in the Sudan and in the Guinea Savanna of West Africa. https://agronomy.it/index.php/agro/article/view/2118Biomass and yieldclimate changemodelsphosphorous and water stress. |
| spellingShingle | Grace Adusei Moses Kwame Aidoo Amit Kumar Srivastava James Yaw Asibuo Thomas Gaiser The impact of climate change on the productivity of cowpea (<em>Vigna unguiculata</em>) under three different socio-economic pathways Italian Journal of Agronomy Biomass and yield climate change models phosphorous and water stress. |
| title | The impact of climate change on the productivity of cowpea (<em>Vigna unguiculata</em>) under three different socio-economic pathways |
| title_full | The impact of climate change on the productivity of cowpea (<em>Vigna unguiculata</em>) under three different socio-economic pathways |
| title_fullStr | The impact of climate change on the productivity of cowpea (<em>Vigna unguiculata</em>) under three different socio-economic pathways |
| title_full_unstemmed | The impact of climate change on the productivity of cowpea (<em>Vigna unguiculata</em>) under three different socio-economic pathways |
| title_short | The impact of climate change on the productivity of cowpea (<em>Vigna unguiculata</em>) under three different socio-economic pathways |
| title_sort | impact of climate change on the productivity of cowpea em vigna unguiculata em under three different socio economic pathways |
| topic | Biomass and yield climate change models phosphorous and water stress. |
| url | https://agronomy.it/index.php/agro/article/view/2118 |
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