Diversité floristique et caractérisation structurale de la réserve forestière de Ouoghi en zone soudanoguinéenne (Centre-Bénin)

Abstract

Objective: The objective of this study is to identify the plant species and to characterize the vegetation of the Ouoghi forest reserve in the commune of Savè (Center-Benin). Method and results: Floristic and forest inventories were carried out through 144 relevés in according to the Braun-Blanquet method. A total of 246 plant species were identified. They belong to 178 genera and 63 families. Multivariate analyzes with the Community Analysis Package (CAP) software made it possible to individualize 3 vegetation formations comprising 8 plant groups. This is the shrub savannah with Prosopis africana and Pennisetum polystachion, the tree savannah with Hymenocardia acida and Pennisetum polystachion, the tree savannah to Vitellaria paradoxa and Pennisetum polystachion, the tree savannah to Pterocarpus erinaceus and Hyptis suaveolens, the woodland savannah with Daniellia Oliveri and Chromolaena odorata, the woodland savannah at Isoberlinia doka and Pennisetum polystachion, the woodland savannah at Daniellia oliveri and Andropogon tectorum and the tree flood savannah to Daniellia oliveri and Leersia hexandra. The floristic and structural parameters change from one group to another. Thus, the specific richness varies from 49 to 153 species and the diversity of families is between 22 and 49 with a predominance of Leguminosae. The density varies from 95 to 275 stems / ha, basal area from 2.35 to 8.44 m² / ha. European Scientific Journal April 2017 edition Vol.13, No.12 ISSN: 1857 -7881 (Print) e -ISSN 1857 401 Conclusion and application of results: The study evaluated the floristic diversity of the Ouoghi reserve. In addition, it indicated the need for its integral protection for its dynamics towards dry dense forest vegetation. Sustainable management of this site needs implication of local population.

Compositional and Structural Diversity of Woody Stands in the Community Forests of Rogho and Boala in Central-West Burkina Faso

“…Formation G1 with Vitellaria paradoxa and Pteleopsis suberosa, comprising eighteen surveys Both sites exhibit an overall species richness of 80 species, distributed across 32 families and 61 genera (Table 1). It is similar to that observed in the Pama Reserve in Southeast Burkina Faso (Mbayngone et al, 2008) and in Northern Togo (Polo-Akpisso et al, 2015), but significantly lower than that of the classified forests of Besso and Badenou in Côte d'Ivoire (N'Guessan, 2015;N'dja et al, 2017;Gboze et al, 2020) and the Ouoghi Forest Reserve in Central Benin (Ahouandjinou et al, 2017). This difference could be explained by the varying size of these forested areas (Atakpama et al, 2022b;Bawa et al, 2022) and their protected status.…”

Les forêts sacrées de Guinée : entre écologie et conservation

“…L'analyse du spectre biologique des groupements ve ´ge ´taux re ´ve `le, dans l'ensemble, une forte pre ´dominance des Phane ´rophytes au sens large et plus particulie `rement des microphane ´rophytes et me ´sophane ´rophytes. Ces re ´sultats sont semblables a `ceux obtenus par Rakotozafy et al [43] dans une formation forestie `re a `l'ouest de Madagascar, et a `ceux d'Ali et al [42] et d'Ahouandjinou et al [44] en zone soudano-guine ´enne au Be ´nin. Pour les ı ˆlots forestiers e ´tudie ´s dans le Sud du Togo par Kokou et Caballe ´ [10], les microphane ´rophytes, sont suivies des nanophane ´rophytes.…”

State of Knowledge on Beekeeping Practices in Côte d'Ivoire in the Face of Challenges and Opportunities in the Context of Climate Change

“…state that honey is sold on average at 2000 F per kilogram in the central and northern zones. These prices are higher than the price of honey in Benin, which is 1600 CFA francs (Ahouandjinou et al, 2016). Price variations are justified by its scarcity and low production (Khenfer and Zitouni., 2014).…”