Climate, Land Use and Land Cover Changes in the Bandama Basin (Côte D’Ivoire, West Africa) and Incidences on Hydropower Production of the Kossou Dam

Yao Morton Kouame, Salomon Obahoundje, Arona Diedhiou, Baptiste François, Ernest Amoussou, Sandrine Anquetin, Régis Sacre Didi, Lazare Kouakou Kouassi, Vami Hermann N’guessan Bi, Emile Gneneyougo Soro and Etienne Kouakou Yao
Additional contact information
Yao Morton Kouame: Centre de Recherche en Ecologie, Université Nangui Abrogoua, 02 BP 801 Abidjan 02, Côte d’Ivoire
Salomon Obahoundje: LAPAMF—African Centre of Excellence on Climate Change, Biodiversity and Sustainable Development/Université Félix Houphouët Boigny, 22 B.P. 582 Abidjan 22, Côte d’Ivoire
Arona Diedhiou: LAPAMF—African Centre of Excellence on Climate Change, Biodiversity and Sustainable Development/Université Félix Houphouët Boigny, 22 B.P. 582 Abidjan 22, Côte d’Ivoire
Baptiste François: Department of Civil and Environmental Engineering, University of Massachusetts Amherst, Amherst, MA 01003, USA
Ernest Amoussou: Département de Géographie et Aménagement de Territoire (DGAT/FLASH), Université de Parakou, BP 123 Parakou, Bénin
Sandrine Anquetin: IRD, CNRS, Grenoble INP, IGE, Univ. Grenoble Alpes, F-38000 Grenoble, France
Régis Sacre Didi: LAPAMF—African Centre of Excellence on Climate Change, Biodiversity and Sustainable Development/Université Félix Houphouët Boigny, 22 B.P. 582 Abidjan 22, Côte d’Ivoire
Lazare Kouakou Kouassi: UFR-Environnement, Université Jean Lorougnon GUEDE, 12 BP V 25 Daloa 12, Côte d’Ivoire
Vami Hermann N’guessan Bi: Centre Universitaire de Recherche et d’Application en Télédétection (CURAT), Université Félix Houphouët Boigny, 22 BP 801 Abidjan 22, Côte d’Ivoire
Emile Gneneyougo Soro: Laboratoire Géosciences et Environnement, Université Nangui Abrogoua, 02 BP 801 Abidjan 02, Côte d’Ivoire
Etienne Kouakou Yao: Laboratoire Géosciences et Environnement, Université Nangui Abrogoua, 02 BP 801 Abidjan 02, Côte d’Ivoire

Land, 2019, vol. 8, issue 7, 1-21

Abstract: Climate and land use/cover changes are potential drivers of change in hydrology and water use. Incidences of these factors on Bandama hydrological basin and Kossou hydropower generation (1981–2016) in West Africa are assessed in this present work. Using Landsat products of United Stated Geological Survey, results show that water bodies areas and land use have increased by 1.89%/year and 11.56%/year respectively, whereas herbaceous savanna, savanna, forest and evergreen forest coverage have been reduced by 1.39%/year, 0.02%/year, 2.39%/year and 3.33%/year respectively from 1988 to 2016. Hydroclimatic analysis reveals that streamflow presents greater change in magnitude compared to rainfall though both increasing trends are not statistically significant at annual scale. Streamflow varies at least four (two) times greatly than the rainfall (monthly and seasonally) annually except during driest months probably due to land use/cover change. In contrast, Kossou hydropower generation is significantly decreasing ( p -value 0.007) at both monthly and annual scales possibly due to water abstraction at upstream. Further works are required to elucidate the combined effects of land use/cover and climate changes on hydrological system as well as water abstraction on Kossou generation.

Keywords: Rainfall; streamflow; land use; land cover change; hydropower; hydropower generation (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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