学术
不同树龄马占相思的木材密度与干燥性能
梁宏温[1] 徐峰[1] 戴军[2] 邓福春[2]
[1]广西大学林学院,南宁530005 [2]广西国有高峰林场,南宁530001
摘 要:
对广西产7、10和20年生马占相思的木材密度和干燥性能进行测定和比较。结果表明：马占相思木材气干密度属于国产木材的中等水平；木材密度随着树龄增加呈逐渐增大的趋势，并随着树干高度上升而呈现先增后减的现象。马占相思木材百度试验的干燥特性（前期开裂、内裂、截面变形、扭曲值和干燥速度）等级高达3级～4级，但随着树龄的增加，干燥特性有好转趋势，其等级可降低1级或2级。[著者文摘]
文章出处:
《木材工业》-2006年20卷4期 -16-18页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1001-8654（2006）04-0016-03
Density and Drying Characteristics for Various Ages of Acacia mangium
LIANG Hong-wen, XU Feng , DAI Jun, DENG Fu-chun （1. College of Forestry, Guangxi University, Nanning 530005, Guangxi, China; 2. Gaofeng Forest Farm, Nanning 530001, Guangxi, China）
Abstract:
An experiment was conducted to study the density and drying characteristics of 7,10 and 20 year-old Acacia rnangiurn samples that were collected from the Gaofeng forest farm in Guangxi Province. Results found that the average air-dried density,basic density （based on moisture content at 12%） and oven-dried density were 0. 534-0. 588 g/cm^3, 0. 452-0. 513 g/cm^3, 0. 498-0. 545 g/cm^3 respectively. The density for air-dried samples was at the medium level compared with most domestic wood. The grade of drying characteristics with respect to initial check, inner check crosssection deformation, twisting deformation as well as drying speed for Acacia mangium is level 3-4. The results show that the density of Acacia rnangium tends to increase as it ages and that the older it is, the better are the drying characteristics with a grade decrease of only 1 or 2 levels.[著者文摘]
Key words:
Acacia mangium ; wood density; drying characteristics
基金资助:
广西大学谭锦球青年科学基金资助（X022045）.
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