摘要
为了研究细柄阿丁枫人工林木材的生材性质,了解其生长规律,运用排水法、质量法和数值法对细柄阿丁枫的生材密度、基本密度、生材含水率和树皮率进行了测定。结果表明:细柄阿丁枫的树皮质量百分率为14.28%,树皮体积百分率为7.5%,树皮的质量百分率和体积百分率均随着树高的增加而逐渐增大;基本密度平均为0.62 g·cm^(-3),从边材到心材呈逐渐减小的变化趋势,在纵向上呈现先减小后增大再减小的波动变化;生材密度平均为1.06 g·cm^(-3),径向上生材密度从边材到心材先增大后减小,纵向上生材密度随着树高的增加而逐渐增大;生材含水率平均为70.29%,从边材到髓心呈逐渐增大的趋势。
In order to study the properties of Altingia gralilipes and understand its growth law,drainage method,mass method and determination method were applied to determine its density,basic density,moisture content and bark rate.The results showed that the bark mass percentage and volume percentage were 14.28%and 7.5%respectively.The basic density was 0.62 g·cm^(-3),and the radial change of the basic density gradually decreased from sapwood to heartwood,and the longitudinal change first decreased and then increased and then decreased.The radial change of raw material density from sapwood to heartwood was about the same,first rising and then falling,and the longitudinal change was generally rising gradually,and the average raw material density was 1.06 g·cm^(-3).The average water content was 70.29%,which was gradually increased from sapwood to pith.
作者
李俊贞
卢庸
孙灿岳
罗青竹
符韵林
LI Jun-zhen;LU Yong;SUN Can-yue;LUO Qin-zhu;FU Xun-lin(Liangfengjiang National Forest Park, Nanning, Guangxi 530031;Forestry College, Guangxi University, Nanning, Guangxi 530004)
出处
《陕西林业科技》
2021年第5期75-79,共5页
Shaanxi Forest Science and Technology
基金
广西大学科研项目(BB33600114)。
关键词
细柄阿丁枫
生材密度
基本密度
树皮率
生材含水率
Altingia gracilipes
green density
Basic density
bark rate
raw material moisture content
