Liquid penetration of precompressed wood VI: Anatomical characterization of pit fractures

被引：37

作者：

Watanabe, U ^{[1
]}

Imamura, Y

Iida, I

机构：

[1] Kyoto Univ, Wood Res Inst, Div Wood Biomass Sci, Lab Property Enhancement, Uji 6110011, Japan

[2] Kyoto Univ, Wood Res Inst, Div Wood Mat Sci, Uji 6110011, Japan

[3] Kyoto Prefectural Univ, Fac Agr, Dept Forest Sci, Kyoto 6068522, Japan

来源：

JOURNAL OF WOOD SCIENCE | 1998年 / 44卷 / 02期

关键词：

pit; refractory wood; precompression treatment; liquid penetration;

D O I：

10.1007/BF00526263

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Pit fractures of refractory coniferous heartwoods caused by precompression in the radial direction were investigated and are discussed in terms of improved liquid penetration. Small cracks appeared at the boundary between the torus and margo, along the outer margin of the margo, and on the torus when specimens were compressed and deformation was fixed by drying. The remarkable cracks were generally observed for Cryptomeria japonica D. Don. Pseudotsuga menziesii France showed peculiar detachment of the torus from the pit border, and Larix leptolepis Gordon exhibited only small cracks on the torus. These fractures patterns were clearer when the precompressed specimens were recovered by water impregnation and then redried.

引用

页码：158 / 162

页数：5