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Impact du feu sur la structure et la composition floristique d'un peuplement forestier de côte d'lvoire et interaction avec les traitements sylvicoles

par Yedmel, Memel S Ch;Kadio, Adjumané Aimé;Hardy, Olivier J. ;Kouame, N'Guessan François;Barbier, Nicolas Serge
Référence Canadian journal of forest research, 40, 10, page (1904-1913)
Publication Publié, 2010

Article révisé par les pairs

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Résumé :

The floristic and structural dynamics of moist tropical forests following degradation remain largely unknown. Nonetheless, understanding these dynamics is vital in the current context of forest carbon and biodiversity issues. The Téné plot (Côte d'Ivoire) is a forest research device set up in 1978 to study, in the long term, the dynamics of species with a commercial value. In 1983, the plots were accidentally burned, and more than 65% of the total area was affected. The objective of this study is to evaluate the impact of forest silviculture in combination with fire on stand structure and floristic composition. The structural and floristic variations were tested respectively using a simple model of ANCOVA and an ordination. The results obtained show that the impact of fire, in terms of burned surface, structure, and floristic composition, was significantly increased by the disturbance induced by the forestry treatments. These results show that silvicultural treatments presumably favourable to species with a commercialization potential can increase susceptibility to fires and cause long-term effects on forests' structure and floristic composition.