原环型管孔式的发现及其意义

A Find of "Original Ring Type" Pore Pattern and Its Significances

近年来作者在木材构造研究中发现了原环型管孔式。原环型管孔式的基本特征是:在部分散孔材中其横切面的早材开始处或附近有一轮显著环形排列的管孔,我们暂时将其订名为原环型管孔式,根据其差异划分为几个类型。 由于原环型管孔式的出现和应用,中国阔叶材的孔材类型的划分,可能将由五大类型进入六大类型。显而易见,采用原环型管孔式后可能使木材的树种检索更加简便易行、迅速、准确。

A group of new type pore pattern was found out by the authors in some years past.One or few pores in width of ring-form distributed in earlywood of & portion of diffusewood. It is posible to call 'Original Ring Type' pore pattern (abb. QRT) .Owing to the appearance and application of QRT the new identifying system (six main group) is growing more advanced than before [1 ithree main group. (1) diffuse-porous wood, (2) semi-ring porous wood, (3) ring-porous wood, 5 ain groups (1) diffuse porous wood, (2) figured-porous wood, (3) radial-porous wood, (4)semi-ring-porous wood, (5).ring-porous wood, 6 .original ring porous wood XIn evidance,, the new identifying system is more easy to run and produce quick result with high quality.