The flora and the vegetation of the fallow of the National Centre of Floristic (NCF) were analyzed 14 years after first inventory was carried out in 1995. The objective of this study was to evaluate the evolution of the flora and the vegetation of the fallow of the NCF. Thus, the fallow was divided into 4 layers representing each one with homogeneous plot. The methodology of inventory adopted is the combination of the linear method described by Gautier et al. (1994) and the way-walking inventory. The study of the vegetation was carried out by vertical and horizontal profiles. The results indicated that this fallow is rich of 162 plant species gathered in 138 genera and 60 families. Among these species more than 80% are Phanerophytes. The structure of the vegetation differs according to the localization of the plot. The observations made it possible to affirm that the fallow of the NCF is still young in a state of regeneration with a regular distribution of species and a small proportion of individuals of the layer V. The comparison of these results, to those of Boraud (1995) showed that fallow in its undisturbed parts evolves to a secondary forest and the fallow is enriched with new species.
Key words: Flora, vegetation, fallow, dynamic, National Centre of Floristic, Ivory Coast.
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