Caractéristique structurale des zones marécageuses de la forêt de la Tanoé-Ehy (Sud-Est de la Côte d’Ivoire)

Cette etude vise a degager les differents etats de degradation de la vegetation au sein de la foret marecageuse de la Tanoe-Ehy, a travers 4 releves lineaires de 100 metres de long. L’analyse de ces releves a montre qu’au niveau des types biologiques, l’espece Combretum racemosum P. Beauv. (Combretaceae) represente l’essentielle des especes lianescentes. Dans cette foret, parmi les especes qui contribuent fortement a la formation de la vegetation, il y a la presence des especes vulnerables de l’UICN. Concernant les recouvrements, les strates basses sont faiblement occupees. Cependant, la vegetation est dense dans les strates moyennes. Ces recouvrements ont montre que la degradation de la structure des milieux est une consequence de l’exploitation villageoise. Par ailleurs, cette foret marecageuse presente des recouvrements particuliers qui n’ont jamais ete observes en foret dense humide de Cote d’Ivoire.Mots cles : Structure, vegetation, foret, marecageuse, types biologiques, recouvrements. Englsih Title: Structural Characteristic of the marshy areas of the Tanoe-Ehy forest (Southeastern Cote d'Ivoire) This study aims to identify the different state of vegetation degradation within the Tanoe-Ehy swamp forest, through 4 linear surveys 100 meters long. Analysis of these surveys showed that at the level of biological types, the species Combretum racemosum P. Beauv. (Combretaceae) is the essential of lianescent species. In this forest, among the species that contribute heavily to vegetation formation, there is the presence of vulnerable IUCN species. For overlays, the lower strata are poorly occupied. However, vegetation is dense in the middle strata. These recoveries have shown that the degradation of the structure of the environments is a consequence of village exploitation. In addition, this swamp forest has special overlays that have never been seen in the dense rainforest of Cote d'Ivoire. Keywords: Structure, vegetation, forest, swampy, biological types, recoveries.