Variation de la densité et la couleur du bois de Pterocarpus erinaceus (Poir) en fonction des conditions environnementales en Afrique de l’Ouest

  • Segla, K.N.
  • Langbour, Patrick
  • Chaix, Gilles
  • Adjonou, K.
  • Guidal, D.
  • Kokou, K.
  • Kokutse, A.D.
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Publication date
November 2014
Publisher
EDP Sciences

Abstract

National audiencePterocarpus erinaceus (Poir.) is currently spontaneous species of Guinea-Sudanese and Sudano-Sahelian areas overexploited and threatened in West Africa. This paper analyzes the density and color of the wood of the species in the agro-ecological zones of three countries in West Africa (Togo, Burkina Faso and Niger). The results of 452 samples collected from 95 trees from the three countries show significant differences in values of basic density and color parameters (P <0.05) according to agro-ecological zones (Sudan, Guinea and Sahel). At scale intra-tree, even if there is an increase in density with the number of rings counted from the pith, this increase is very small (R²≤ 0.18). This reflects the fact that age has little...

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