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Relations between the ecological conditions and the properties of Pterocarpus erinaceus Poir. wood from the Guinean-Sudanian and Sahelian zones of West Africa

Segla Kossi Novinyo, Adjonou Kossi, Rabiou Habou, Bationo Babou André, Mahamane Ali, Guibal Daniel, Kobou Kouami, Chaix Gilles, Kokutse Adzo Dzifa, Langbour Patrick. 2020. Relations between the ecological conditions and the properties of Pterocarpus erinaceus Poir. wood from the Guinean-Sudanian and Sahelian zones of West Africa. Holzforschung, 74 (11) : pp. 999-1009.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Abstract : Pterocarpus erinaceus (Poir) is currently the most exploited and threatened spontaneous tree species in the Guinean-Sudanian and Sudano-Sahelian zones in West Africa. This work analyzed the density and color parameters of P. erinaceus wood in the phytogeographic zones (Sudanian, Guinean and Sahelian) in three countries in West Africa (Togo, Burkina Faso and Niger). The results obtained by studying 451 specimens taken from 95 trees showed significant differences in basic density and color parameter values (P < 0.001) based on phytogeographic zones. Individual tree samples from the Sahelian zone were denser (780 ± 63 kg · m − 3), darker (L* = 48.3 ± 0.6) and redder (a* = 8.2 ± 2) than those in the Guinean zone (basic density = 684 ± 53 kg · m−3; L* = 59.7 ± 0.5; a* = 6 ± 0.2) and the Sudanian zone (basic density = 725 ± 70 kg · m−3; L* = 53.7 ± 0.40; a* = 7.30 ± 0.2). At intra-tree scale, the results did not show a significant variation of basic density according to the number of rings counted from the pith (P > 0.05). This indicated that the age of the trees has little influence on the basic density of P. erinaceus wood.

Mots-clés Agrovoc : Pterocarpus erinaceus, Biogéographie, Couleur, Facteur du milieu

Mots-clés géographiques Agrovoc : Afrique occidentale

Mots-clés complémentaires : Densité du bois

Mots-clés libres : Basic density, Color parameters, Phytogeographic zones, Pterocarpus erinaceus, West Africa

Classification Agris : K01 - Forestry - General aspects
F50 - Plant structure
F40 - Plant ecology

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

Auteurs et affiliations

  • Segla Kossi Novinyo, Université de Lomé (TGO) - auteur correspondant
  • Adjonou Kossi, Université de Lomé (TGO)
  • Rabiou Habou, Université de Diffa (NER)
  • Bationo Babou André, INERA (BFA)
  • Mahamane Ali, Université de Djiffa (NER)
  • Guibal Daniel, CIRAD-PERSYST-UPR BioWooEB (FRA)
  • Kobou Kouami, Université de Lomé (TGO)
  • Chaix Gilles, CIRAD-BIOS-UMR AGAP (FRA)
  • Kokutse Adzo Dzifa, Université de Lomé (TGO)
  • Langbour Patrick, CIRAD-PERSYST-UPR BioWooEB (FRA) ORCID: 0000-0001-6037-255X

Source : Cirad-Agritrop (https://agritrop.cirad.fr/595594/)

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