Global Journal of Science Frontier Research, H: Environment & Earth Science, Volume 23 Issue 2

and different species to facilitate the analysis of the radial and vertical structure. A cknowledgements The authors are greatly thankful to the SFIL- GDC logging company for their support during the study. Particularly, we would like to thank the owner’s brothers Guy and Freddy Decolvenaere. We also thank the SFIL-GDC staff in Ndeng, especially Jean Claude Bounougou Zibi and Isaac Hayache whose efforts substantially facilitated our fieldwork campaigns. This study was supported by the Royal Museum for Central Africa (RMCA) funded by Belgian Development Cooperation. R eferences R éférences R eferencias 1. Amougou Ndi YA, Mbolo M, Amougou Amougou FB, Ndongo Din (2022) Potentiel d’analyse des cernes de croissance: cas de 09 essences forestières en Afrique Centrale. Inter. J. of In no. and App. Scie. 37 (1): 49-60. ISSN: 2028-9324. 2. ASTM International (2011) ASTM D2395 - 07ae1 Standard test methods for specific gravity of wood and wood-based materials. 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