Impact des pressions anthropiques sur la flore de la forêt classée du Haut-Sassandra (Centre-ouest de la Côte d'Ivoire)
2018
Kouakou, ATM. | Assale, AAY. | Barima, YSS.
Impact of Anthropogenic Pressures on the Flora of the Haut-Sassandra Classified Forest (Central-West of Côte d'Ivoire). The classified forest of Haut-Sassandra located in the center-west of Ivory Coast is subjected to a strong anthropization since the politico-military conflicts of the year 2002. This study aims to quantify the degradation in the northern, central and southern zones of this domain. To achieve this, a spatiotemporal analysis of the dynamics of the three zones was made based on five Landsat images from 1990, 1997, 2002, 2006 and 2013. It was supplemented by a floristic inventory of each zone. The results show that forest cover conversions of the three zones occurred during the conflict period with regression rates of more than 50 %. At the floristic level, 622 plant species distributed among 410 genera and 104 families were recorded in all three zones. The North and the Center differ significantly from the South by the average specific richness. The inventoried flora generally differs from one zone to another depending on the degradation factors, with a greater diversity in cocoa plantations. However, this flora, although diversified, does not have any similarity with that of the forest relics still present in the classified forest of Haut-Sassandra.
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