摘要
利用CT技术检测0～4年生毛竹(Phyllostachys pubescens)轴向和径向密度特征。研究结果表明:竹材CT值与其密度存在显著的线性关系,其数学模型为D=0.0011×CT值+1.1186(R2=0.99);在毛竹基部,密度从竹青到竹黄呈现快速下降到逐渐趋于平缓,而稍部则呈现均匀下降趋势。
The density characteristics of Phyllostachys pubescens was non-destructively detected with computed tomography（CT）. The density variations of different ages （current year or 3 months, 1 year, 2 years, 3 years, 4 years old） bamboo at axial direction and radial direction were studied. The results indicated there was the linear relationship between bamboo density and its CT density. D=0.0011 ~ CT value＋l.1186（R2=0.99）; it showed the phenomenon that the density was from rapid to slow decrease trend fron bamboo green to bamboo yellow of the culm base,while was slightly homogeneously decrease in the culm top.
出处
《木材加工机械》
2009年第6期16-19,共4页
Wood Processing Machinery
基金
"十一五"国家科技支撑项目(2008BADA9B03
2006BAD19B01)
国家林业局国际竹藤网络中心科研基金项目618-25
关键词
计算机断层扫描
毛竹
密度
computed tomography（CT）
pbyllostachys pubescens
density
