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.

中文翻译：

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生态条件与Pterocarpus erinaceus Poir 特性的关系。来自西非几内亚-苏丹和萨赫勒地区的木材

摘要 Pterocarpus erinaceus (Poir) 是目前西非几内亚-苏丹和苏丹-萨赫勒地区开发和受威胁最严重的自发树种。这项工作分析了西非三个国家（多哥、布基纳法索和尼日尔）的植物地理区（苏丹、几内亚和萨赫勒）中 P. erinaceus 木材的密度和颜色参数。通过研究取自 95 棵树的 451 个标本获得的结果显示，基于植物地理区域的基本密度和颜色参数值（P < 0.001）存在显着差异。来自萨赫勒地区的单个树木样本比几内亚地区的树木更密集 (780 ± 63 kg · m − 3)、更暗 (L* = 48.3 ± 0.6) 和更红 (a* = 8.2 ± 2)（基本密度 = 684 ± 53 kg · m-3；L* = 59.7 ± 0.5；a* = 6 ± 0.2）和苏丹地区（基本密度 = 725 ± 70 kg · m-3；L* = 53.7±0.40；a* = 7.30 ± 0.2)。在树内尺度上，根据从髓中计数的环数，结果没有显示基本密度的显着变化（P > 0.05）。这说明树龄对P. erinaceus 木材的基本密度影响不大。