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) : 999-1009.

https://doi.org/10.1515/hf-2019-0250

Article de revue ; Article de recherche ; Article de revue à facteur d'impact

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Quartile : Q1, Sujet : MATERIALS SCIENCE, PAPER & WOOD / Quartile : Q2, Sujet : FORESTRY

Résumé : 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 - Foresterie - Considérations générales
F50 - Anatomie et morphologie des plantes
F40 - Écologie végétale

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

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