Integrating GIS and remote sensing for land use/land cover mapping and groundwater potential assessment for climate-smart cocoa irrigation in Ghana
Although Ghana is a leading global cocoa producer, its production and yield have experienced declines in recent years due to various factors, including long-term climate change such as increasing temperatures and changing rainfall patterns, as well as drought events. With the increasing exposure of...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2023
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/132074 |
| _version_ | 1855534583767891968 |
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| author | Akpoti, Komlavi Dembélé, Moctar Forkuor, G. Obuobie, E. Mabhaudhi, Tafadzwanashe Cofie, Olufunke O. |
| author_browse | Akpoti, Komlavi Cofie, Olufunke O. Dembélé, Moctar Forkuor, G. Mabhaudhi, Tafadzwanashe Obuobie, E. |
| author_facet | Akpoti, Komlavi Dembélé, Moctar Forkuor, G. Obuobie, E. Mabhaudhi, Tafadzwanashe Cofie, Olufunke O. |
| author_sort | Akpoti, Komlavi |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Although Ghana is a leading global cocoa producer, its production and yield have experienced declines in recent years due to various factors, including long-term climate change such as increasing temperatures and changing rainfall patterns, as well as drought events. With the increasing exposure of cocoa-producing regions to extreme weather events, the vulnerability of cocoa production is also expected to rise. Supplemental irrigation for cocoa farmers has emerged as a viable adaptation strategy to ensure a consistent water supply and enhance yield. However, understanding the potential for surface and groundwater irrigation in the cocoa-growing belt remains limited. Consequently, this study aims to provide decision-support maps for surface and groundwater irrigation potential to aid planning and investment in climate-smart cocoa irrigation. Utilizing state-of-the-art geospatial and remote sensing tools, data, and methods, alongside in-situ groundwater data, we assess the irrigation potential within Ghana's cocoa-growing areas. Our analysis identified a total area of 22,126 km2 for cocoa plantations and 125.2 km2 for surface water bodies within the cocoa-growing regions. The multi-criteria analysis (MCA) revealed that approximately 80% of the study area exhibits moderate to very high groundwater availability potential. Comparing the MCA output with existing borehole locations demonstrated a reasonable correlation, with about 80% of existing boreholes located in areas with moderate to very high potential. Boreholes in very high potential areas had the highest mean yield of 90.7 l/min, while those in low groundwater availability potential areas registered the lowest mean yield of 58.2 l/min. Our study offers a comprehensive evaluation of water storage components and their implications for cocoa irrigation in Ghana. While groundwater availability shows a generally positive trend, soil moisture and surface water have been declining, particularly in the last decade. These findings underline the need for climate-smart cocoa irrigation strategies that make use of abundant groundwater resources during deficit periods. A balanced conjunctive use of surface and groundwater resources could thus serve as a sustainable solution for maintaining cocoa production in the face of climate change. |
| format | Journal Article |
| id | CGSpace132074 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1320742025-10-26T13:00:35Z Integrating GIS and remote sensing for land use/land cover mapping and groundwater potential assessment for climate-smart cocoa irrigation in Ghana Akpoti, Komlavi Dembélé, Moctar Forkuor, G. Obuobie, E. Mabhaudhi, Tafadzwanashe Cofie, Olufunke O. climate-smart agriculture cocoa groundwater irrigation land-use mapping land cover mapping groundwater potential groundwater assessment geographical information systems remote sensing surface water water availability climate change Although Ghana is a leading global cocoa producer, its production and yield have experienced declines in recent years due to various factors, including long-term climate change such as increasing temperatures and changing rainfall patterns, as well as drought events. With the increasing exposure of cocoa-producing regions to extreme weather events, the vulnerability of cocoa production is also expected to rise. Supplemental irrigation for cocoa farmers has emerged as a viable adaptation strategy to ensure a consistent water supply and enhance yield. However, understanding the potential for surface and groundwater irrigation in the cocoa-growing belt remains limited. Consequently, this study aims to provide decision-support maps for surface and groundwater irrigation potential to aid planning and investment in climate-smart cocoa irrigation. Utilizing state-of-the-art geospatial and remote sensing tools, data, and methods, alongside in-situ groundwater data, we assess the irrigation potential within Ghana's cocoa-growing areas. Our analysis identified a total area of 22,126 km2 for cocoa plantations and 125.2 km2 for surface water bodies within the cocoa-growing regions. The multi-criteria analysis (MCA) revealed that approximately 80% of the study area exhibits moderate to very high groundwater availability potential. Comparing the MCA output with existing borehole locations demonstrated a reasonable correlation, with about 80% of existing boreholes located in areas with moderate to very high potential. Boreholes in very high potential areas had the highest mean yield of 90.7 l/min, while those in low groundwater availability potential areas registered the lowest mean yield of 58.2 l/min. Our study offers a comprehensive evaluation of water storage components and their implications for cocoa irrigation in Ghana. While groundwater availability shows a generally positive trend, soil moisture and surface water have been declining, particularly in the last decade. These findings underline the need for climate-smart cocoa irrigation strategies that make use of abundant groundwater resources during deficit periods. A balanced conjunctive use of surface and groundwater resources could thus serve as a sustainable solution for maintaining cocoa production in the face of climate change. 2023-09-25 2023-09-30T06:50:03Z 2023-09-30T06:50:03Z Journal Article https://hdl.handle.net/10568/132074 en Open Access Springer Akpoti, Komlavi; Dembele, Moctar; Forkuor, G.; Obuobie, E.; Mabhaudhi, Tafadzwanashe; Cofie, Olufunke. 2023. Integrating GIS and remote sensing for land use/land cover mapping and groundwater potential assessment for climate-smart cocoa irrigation in Ghana. Scientific Reports, 13:16025. [doi: https://doi.org/10.1038/s41598-023-43286-5] |
| spellingShingle | climate-smart agriculture cocoa groundwater irrigation land-use mapping land cover mapping groundwater potential groundwater assessment geographical information systems remote sensing surface water water availability climate change Akpoti, Komlavi Dembélé, Moctar Forkuor, G. Obuobie, E. Mabhaudhi, Tafadzwanashe Cofie, Olufunke O. Integrating GIS and remote sensing for land use/land cover mapping and groundwater potential assessment for climate-smart cocoa irrigation in Ghana |
| title | Integrating GIS and remote sensing for land use/land cover mapping and groundwater potential assessment for climate-smart cocoa irrigation in Ghana |
| title_full | Integrating GIS and remote sensing for land use/land cover mapping and groundwater potential assessment for climate-smart cocoa irrigation in Ghana |
| title_fullStr | Integrating GIS and remote sensing for land use/land cover mapping and groundwater potential assessment for climate-smart cocoa irrigation in Ghana |
| title_full_unstemmed | Integrating GIS and remote sensing for land use/land cover mapping and groundwater potential assessment for climate-smart cocoa irrigation in Ghana |
| title_short | Integrating GIS and remote sensing for land use/land cover mapping and groundwater potential assessment for climate-smart cocoa irrigation in Ghana |
| title_sort | integrating gis and remote sensing for land use land cover mapping and groundwater potential assessment for climate smart cocoa irrigation in ghana |
| topic | climate-smart agriculture cocoa groundwater irrigation land-use mapping land cover mapping groundwater potential groundwater assessment geographical information systems remote sensing surface water water availability climate change |
| url | https://hdl.handle.net/10568/132074 |
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