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Hydrological responses to climate and land use changes: the paradox of regional and local climate effect in the Pra River Basin of Ghana
Study Region: Pra River Basin, Ghana. Study Focus: The study modelled the changes in water yield using regional, sub-regional and local climate conditions from modelling outputs at spatial resolutions of 44 km, 12 km and 0.002 km respectively to drive the Integrated Valuation of Ecosystem Services a...
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2020
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| LEADER | 00000njm a2000000a 4500 | ||
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| 001 | oai:repository.ui.edu.ng:123456789/8533 | ||
| 042 | |a dc | ||
| 720 | |a Bessah, E. |e author | ||
| 720 | |a Raji, A. O. |e author | ||
| 720 | |a Taiwo, O. J. |e author | ||
| 720 | |a Agodzo, S. K. |e author | ||
| 720 | |a Ololade, O. O. |e author | ||
| 720 | |a Strapasson, A. |e author | ||
| 260 | |c 2020 | ||
| 520 | |a Study Region: Pra River Basin, Ghana. Study Focus: The study modelled the changes in water yield using regional, sub-regional and local climate conditions from modelling outputs at spatial resolutions of 44 km, 12 km and 0.002 km respectively to drive the Integrated Valuation of Ecosystem Services and Trade-offs model at three time periods of land use land cover (LULC). Changes in historical water yield (simulated for 1986, 2002 & 2018 LULC using the mean climatic parameters from 1981-2010) and future scenario (simulated for 2018 LULC using the mean climatic parameters from 2020-2049) for annual, seasonal and monthly periods were assessed. New Hydrological Insights for the Region: The results show that future annual water yield could change by -46%, -48%, +44% and -35% under the regional, sub-regional, local and ensemble mean of the climate scenarios respectively. Seasonal water yield from the ensemble mean of the future climate scenario was projected to decrease between 2-16 mm, with a mean decrease of 33.39% during the December–February season. There was no directional effect of spatial resolution on water yield. The future period could be impacted by both drought and flood. We recommend that re/afforestation should be encouraged to improve infiltration and reduce deforestation which was 2.27% per annum in the assessed period to prevent flood causing runoffs, while irrigation technology will help to improve resilience to drought. | ||
| 024 | 8 | |a 2214-5818 | |
| 024 | 8 | |a ui_art_bessah_hydrological_2020 | |
| 024 | 8 | |a Journal of Hydrology: Regional Studies 27, pp. 1-12 | |
| 024 | 8 | |a http://ir.library.ui.edu.ng/handle/123456789/8533 | |
| 653 | |a Climate change | ||
| 653 | |a InVEST model | ||
| 653 | |a Land use land cover change | ||
| 653 | |a Regional climate models | ||
| 653 | |a Pra River Basin | ||
| 653 | |a SDSM-DC | ||
| 653 | |a Water yield | ||
| 245 | 0 | 0 | |a Hydrological responses to climate and land use changes: the paradox of regional and local climate effect in the Pra River Basin of Ghana |