[ Impact de la culture cacaoyère sur le paysage en zones rurale et domaniale de l’Ouest de la Côte d’Ivoire ]
Volume 50, Issue 2, September 2020, Pages 128–137
Kadio Attey Noël Koua1, Yao Sadaiou Sabas Barima2, KPANGUI Kouassi Bruno3, and BAMBA Issouf4
1 Laboratoire de Biodiversité et Gestion Durable des Ecosystèmes Tropicaux, Université Jean Lorougnon Guédé, BP 150 Daloa, Côte d’Ivoire
2 Unité de Formation et de Recherche en Environnement, Université Jean Lorougnon Guédé, BP 150 Daloa, Côte d'Ivoire
3 UFR Environnement, Université Jean Lorougnon Guédé, BP 150 Daloa, Côte d'Ivoire
4 Université JEAN LOROUGNON GUEDE, UFR Environnement, Groupe de Recherche interdisciplinaire en Ecologie du Paysage et en Environnement (GRIEPE), BP 150 Daloa, Côte d'Ivoire
Original language: French
Copyright © 2020 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.
The ageing of cocoa orchards in south-western Côte d'Ivoire in the early 2000s resulted in the relocation of the pioneer front to the forested west. This influx of population would have modified the landscape structure or the composition of land use classes in the areas where the people settled. The purpose of this study is to assess the impact of cocoa production on the dynamics of rural and protected areas in the Biankouma department in western Côte d'Ivoire. To achieve this, four satellite images dating from 2002, 2006, 2013, and 2018 from Landsat sensors were processed. The results showed that over the period 2002 to 2018, the number of cocoa farms installed in the protected area was twice as high as in the rural area. In fact, during this period, the surface of cocoa farms increased by 1232.5% in the protected area compared to 567.9% in the rural area. The increase in cocoa cultivation was entirely to the detriment of natural vegetation (-34.7%) in the rural area, whereas it was detrimental to all the classes (-56.8%) in the protected area. The land-use change map indicates that the conversion of natural vegetation to cocoa is mostly concentrated in the protected areas. Thus, cocoa cultivation has had a greater negative effect on the landscape in the protected area compared to the rural area in the west of Côte d'Ivoire.
Author Keywords: Cocoa Crops, Côte d'Ivoire, Time-space dynamics, State-owned areas, Mountainous West.
Volume 50, Issue 2, September 2020, Pages 128–137
Kadio Attey Noël Koua1, Yao Sadaiou Sabas Barima2, KPANGUI Kouassi Bruno3, and BAMBA Issouf4
1 Laboratoire de Biodiversité et Gestion Durable des Ecosystèmes Tropicaux, Université Jean Lorougnon Guédé, BP 150 Daloa, Côte d’Ivoire
2 Unité de Formation et de Recherche en Environnement, Université Jean Lorougnon Guédé, BP 150 Daloa, Côte d'Ivoire
3 UFR Environnement, Université Jean Lorougnon Guédé, BP 150 Daloa, Côte d'Ivoire
4 Université JEAN LOROUGNON GUEDE, UFR Environnement, Groupe de Recherche interdisciplinaire en Ecologie du Paysage et en Environnement (GRIEPE), BP 150 Daloa, Côte d'Ivoire
Original language: French
Copyright © 2020 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
The ageing of cocoa orchards in south-western Côte d'Ivoire in the early 2000s resulted in the relocation of the pioneer front to the forested west. This influx of population would have modified the landscape structure or the composition of land use classes in the areas where the people settled. The purpose of this study is to assess the impact of cocoa production on the dynamics of rural and protected areas in the Biankouma department in western Côte d'Ivoire. To achieve this, four satellite images dating from 2002, 2006, 2013, and 2018 from Landsat sensors were processed. The results showed that over the period 2002 to 2018, the number of cocoa farms installed in the protected area was twice as high as in the rural area. In fact, during this period, the surface of cocoa farms increased by 1232.5% in the protected area compared to 567.9% in the rural area. The increase in cocoa cultivation was entirely to the detriment of natural vegetation (-34.7%) in the rural area, whereas it was detrimental to all the classes (-56.8%) in the protected area. The land-use change map indicates that the conversion of natural vegetation to cocoa is mostly concentrated in the protected areas. Thus, cocoa cultivation has had a greater negative effect on the landscape in the protected area compared to the rural area in the west of Côte d'Ivoire.
Author Keywords: Cocoa Crops, Côte d'Ivoire, Time-space dynamics, State-owned areas, Mountainous West.
Abstract: (french)
Le vieillissement des vergers de cacao dans le Sud-Ouest de la Côte d’Ivoire au début des années 2000 a occasionné le déplacement du front pionnier vers l’Ouest forestier. Cet afflux de population aurait modifié la structure paysagère ou la composition des classes d’occupation du sol des zones d’arrivée des populations. La présente étude a pour objectif d’évaluer l’impact de la culture cacaoyère sur les dynamiques des domaines rural et protégé du département de Biankouma dans l’Ouest de la Côte d’Ivoire. Pour y arriver, la méthodologie a nécessité les traitements de quatre images satellitaires datant de 2002, 2006, 2013 et 2018 issues du capteur Landsat. Les résultats ont montré sur la période de 2002 à 2018, une installation des cacaoyères dans le domaine protégé deux plus important que dans le milieu rural est enregistrée. En effet, durant cette période, les surfaces cacaoyères connaissent une progression de 1232,5 % dans le domaine protégé contre 567,9 % dans le domaine rural. Cette progression de la culture cacaoyère s’est faite uniquement au détriment de la végétation naturelle (-34,7 %) dans le domaine rural tandis qu’elle s’est faite au détriment de toutes les classes (-56,8 %) dans le domaine protégé. La carte de changement de l’occupation du sol indique que la conversion de la végétation naturelle en cacaoyère est localisée majoritairement dans les domaines protégés. Ainsi, la culture cacaoyère a eu un effet négatif plus considérable sur le paysage dans le domaine protégé que dans le domaine rural de l’Ouest de la Côte d’Ivoire.
Author Keywords: Cultures cacaoyères, Côte d’Ivoire, Dynamique spatio-temporelle, Espaces domaniaux, Ouest montagneux.
How to Cite this Article
Kadio Attey Noël Koua, Yao Sadaiou Sabas Barima, KPANGUI Kouassi Bruno, and BAMBA Issouf, “Impact of cocoa farming on the landscape in rural and state-owned areas of West Côte d'Ivoire,” International Journal of Innovation and Scientific Research, vol. 50, no. 2, pp. 128–137, September 2020.
