[ Variabilité climatique et productions de café et cacao en zone tropicale humide : cas de la région de Daoukro (Centre-est de la Côte d'ivoire) ]
Volume 1, Issue 2, December 2012, Pages 194–215
Kanohin Fulvie epse Otchoumou1, Mahaman Bachir Saley2, Aké Gabriel Etienne3, Savané Issiaka4, and Kouakou Bernard Dje5
1 Laboratoire Géosciences et Environnement, Université Nangui Abrogoua, Abidjan, Côte d'Ivoire
2 Laboratoire des Sciences et Techniques de l'Eau et de l'Environnement, Université Felix Houphouet Boigny, Abidjan, Côte d'Ivoire
3 Laboratoire des Sciences et Techniques de l'Eau et de l'Environnement, Université Felix Houphouet Boigny, Abidjan, Côte d'Ivoire
4 Laboratoire Géosciences et Environnement (LGE), UFR Sciences et Gestion de l'Environnement (SGE), Université Nangui Abrogoua (UNA), Côte d'Ivoire
5 Société d’Exploitation et de Développement Aéroportuaire, Aéronautique et Météorologique, Abidjan, Côte d’Ivoire
Original language: French
Copyright © 2012 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
This study aims to show the effect of the climatic variability on the productions of coffee and cocoa of the area of Daoukro which is the principal producing area in the Ivory Coast. The methodological approach is summarized in two steps: first, the characterization and analysis of the impact of climate variability on water resources second monitoring developments in the production of coffee and cocoa (1964-2005) through statistical analysis. The centered and reduced index shows a great interannual variability of rainfalls which is organized in two climatic periods, a humid period (1956-1970) and a dry period (1971-2009). The rainfall deficit evaluated in the area of Daoukro reaches an average of 11% and fluctuated between 5% and 15%. Analysis of the average rainfalls of the wettest four months (March-June) every 10 years during five decades of Daoukro station shows that the period of the great season of rains fell from 4 months to 3 months. The decrease of the rainfall consecutive with the effects of the dryness involved a decrease of the agricultural production (the production of coffee and cocoa). The climate variability from 1964 to 2005 caused interannual fluctuation of the production of coffee and cocoa. Cocoa production in 2004-2005 is only 36% of that of 1981-1982 and that of coffee 43% of the production of 1981-1982.
Author Keywords: Climate variability, production of coffee and cocoa, tropical zone, C.
Volume 1, Issue 2, December 2012, Pages 194–215
Kanohin Fulvie epse Otchoumou1, Mahaman Bachir Saley2, Aké Gabriel Etienne3, Savané Issiaka4, and Kouakou Bernard Dje5
1 Laboratoire Géosciences et Environnement, Université Nangui Abrogoua, Abidjan, Côte d'Ivoire
2 Laboratoire des Sciences et Techniques de l'Eau et de l'Environnement, Université Felix Houphouet Boigny, Abidjan, Côte d'Ivoire
3 Laboratoire des Sciences et Techniques de l'Eau et de l'Environnement, Université Felix Houphouet Boigny, Abidjan, Côte d'Ivoire
4 Laboratoire Géosciences et Environnement (LGE), UFR Sciences et Gestion de l'Environnement (SGE), Université Nangui Abrogoua (UNA), Côte d'Ivoire
5 Société d’Exploitation et de Développement Aéroportuaire, Aéronautique et Météorologique, Abidjan, Côte d’Ivoire
Original language: French
Copyright © 2012 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
This study aims to show the effect of the climatic variability on the productions of coffee and cocoa of the area of Daoukro which is the principal producing area in the Ivory Coast. The methodological approach is summarized in two steps: first, the characterization and analysis of the impact of climate variability on water resources second monitoring developments in the production of coffee and cocoa (1964-2005) through statistical analysis. The centered and reduced index shows a great interannual variability of rainfalls which is organized in two climatic periods, a humid period (1956-1970) and a dry period (1971-2009). The rainfall deficit evaluated in the area of Daoukro reaches an average of 11% and fluctuated between 5% and 15%. Analysis of the average rainfalls of the wettest four months (March-June) every 10 years during five decades of Daoukro station shows that the period of the great season of rains fell from 4 months to 3 months. The decrease of the rainfall consecutive with the effects of the dryness involved a decrease of the agricultural production (the production of coffee and cocoa). The climate variability from 1964 to 2005 caused interannual fluctuation of the production of coffee and cocoa. Cocoa production in 2004-2005 is only 36% of that of 1981-1982 and that of coffee 43% of the production of 1981-1982.
Author Keywords: Climate variability, production of coffee and cocoa, tropical zone, C.
Abstract: (french)
Cette étude a pour objectif de montrer l'effet de la variabilité climatique sur les productions de café et de cacao de la région de Daoukro, ex-boucle du Cacao de la Côte d'Ivoire. La démarche méthodologique adoptée se résume en deux étapes : d'abord l'analyse des fluctuations pluviométriques suivies de l'évolution de la production de café et de cacao (1964-2005) à travers des analyses statistiques. L'analyse de la pluviométrie moyenne mensuelle par décennie au cours de la période 1956-2009 à la station de Daoukro et des stations environnantes permet de constater que la période de la grande saison des pluies est passée de 4 mois à 3 mois. La baisse de la pluviométrie consécutive aux effets de la sécheresse a entraîné une baisse de la production de café et de cacao. Ainsi, la variabilité climatique de 1964 à 2005 a entraîné une fluctuation interannuelle de la production de café et cacao. La production cacaoyère ne représente en 2004-2005 que 36% de celle de 1981-1982, celle du café 43% de la production de 1981-1982.
Author Keywords: Variabilité climatique, production de café-cacao, zone tropicale, Côte d'Ivoire.
How to Cite this Article
Kanohin Fulvie epse Otchoumou, Mahaman Bachir Saley, Aké Gabriel Etienne, Savané Issiaka, and Kouakou Bernard Dje, “Climate variability and production of coffee and cocoa in wet tropical zone: The case of Daoukro region (east-central Côte d'Ivoire),” International Journal of Innovation and Applied Studies, vol. 1, no. 2, pp. 194–215, December 2012.
