The present study was initiated to contribute to the sustainable management of the Niégré classified forest. It analyzed the floristic diversity, vegetation structure and conservation value of this forest. The methodology used consisted in randomly installing 100 m x 20 m (2,000 m2) plots in each biotope (old-growth forest, 1-10 year-old fallow, 11-19 year-old fallow, 20-30 year-old fallow and 30+ year-old fallow). In each plot, chest height diameter (CHD) and height measurements were taken for all woody species 2.5 cm and over. A total of 419 species in 286 genera and 92 families were recorded. The most important families are Fabaceae, Rubiaceae and Euphorbiaceae. The flora of this forest is also characterized by the presence of special-status species (55), two of which are endemic to Côte d’Ivoire. This work also shows that stand composition and structure parameters increase with the age of the fallow. Efforts to conserve the endemic, rare and endangered species of the Niégré classified forest must be a top priority.
The purpose of this study was to improve knowledge on the evaluation of the ecological value of a plant formation. This process includes several stages including the definition of the evaluation objective, the inventory of the environment or data collection, the choice of criteria, the rating of the criteria, the calculation of the weighting by criterion and the total weighting and finally, the evaluation of the ecological value of the site. he practical case of the Mamadou Sangaré estate shows that denser and richer forest formations record a higher ecological value compared to savannah formations.
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