坡垒与水坡垒的木材鉴别

Timber Identification between Hopea hainanensis and Streblus indicus

摘要: 为了更好地识别坡垒与水坡垒的木材结构，采用宏观和微观观察方式对二者的木材特征进行了比较。结果表明：坡垒与水坡垒的木材区别明显，主要表现在前者材色微红；心材所占比例较大；复管孔多数；轴向薄壁组织以傍管型为主；木射线为异形II型，较窄；材质硬，加工难；纵切面具竹丝纹；木材无特殊气味；气干密度为0.97~1.00 g/cm³。后者材色微绿；心材所占比例较小；复管孔少数；离管型为主；木射线为异形III型，较宽，常与薄壁组织交织成“井”字型；材质中等硬，加工容易；纵切面具抛物线纹或鸡翅纹；具椰香味；气干密度为0.82~0.85 g/cm³。

Abstract: In order to better identify the timber structure of Hopea hainanensis and Streblus indicus, macro-scopic and microscopic observation was used to compare the timber structure characters between them. The result indicated that the timber structures of Hopea hainanensis have distinct differences from Streblus indicus. The main differences lie in that the timber color of the former is reddish; heartwood accounts for a large proportion; multiple pore is in the majority; the axial parenchyma is mostly alongside tubular; the type of timber ray is heteromorphic type II and narrow; the timber textures are hard and difficult for processing; the longitudinal section of timber has bamboo silk grain; the timber has no special smell; the air-dried density is 0.97 - 1.00 g/cm³. While, the timber color of the latter is greenish; heartwood accounts for a small proportion; multiple pore is few; the axial parenchyma is mostly outlying tubular; the type of timber ray is heteromorphic type III, wide, and often interwoven with the parenchyma to form a “井” shape; the timber textures are medium hard and easy for processing; the longitudinal section of timber has parabola or chicken wing pattern; the timber has coconut fragrance; the air-dried density is 0.82 - 0.85 g/cm³.