摘要
对小兴安岭天然林中30棵冷杉立木的含水率和应力波传播速度的检测结果表明:常温下,应力波纵向传播速度远大于径向传播速度;光照条件对于纵向传播速度的影响不显著;应力波纵向传播速度与含水率存在不显著的负相关性。
To investigate the propagation of stress wave in standing tree, the moisture content （MC） and stress wave propagation velocity of 30 Abies fabric standing trees were tested in Xiaoxing＇anling nature forest region. The result indicated that the longitudinal propagation velocity were obviously higher than radial propagation velocity in Abies fabric. And the light conditions did not have evident effect on stress wave propagating velocity. Additionally, there was a low negative correlation relationship between the MC and longitudinal propagation velocity in normal temperature state.
出处
《林业科技》
2013年第1期22-24,共3页
Forestry Science & Technology
基金
国家林业行业公益性科研专项重大项目资助(201104007)
关键词
应力波
立木
含水率
传播速度
冷杉
Stress wave
Standing tree
Moisture content
Propagation
Abies fabric
