摘要
测定和比较了长岭岗林场 3 2a生杉木人工林的幼龄材和成熟材的密度 .结果表明 ,该场杉木幼龄材全干密度为 0 .3 84g/cm3、气干密度为 0 .3 82g/cm3、基本密度为 0 .3 2 3g/cm3,成熟材全干密度为 0 .43 5g/cm3、气干密度为 0 .42 8g/cm3、基本密度为 0 .3 92g/cm3;经方差分析对各密度指标的显著性测验 ,幼龄材和成熟材全干密度、气干密度、基本密度都具极显著差异 ;而单株间各密度指标稳定一致 .在此基础上 。
In this paper,the density of the juvenile and mature wood of Chinese fir plantations of 32-year-old was determined in Changlinggang forest farm located in Jianshi county,Hubei Province. The results showed that the complete density,air density,basic density was 0.384 g/cm 3,0.382 g/cm 3,0.323 g/cm 3 respectively in the juvenile wood,but 0.435 g/cm 3,0.428 g/cm 3,0.392 g/cm 3 in the mature wood. F-test values indicated there were significant differences between the juvenile and mature wood in the all density indices, but there was no obvious differences among the individual tree. The effect of density on the wood of properties utilities was analyzed.
出处
《湖北民族学院学报（自然科学版）》
CAS
2003年第1期76-78,共3页
Journal of Hubei Minzu University(Natural Science Edition)
基金
湖北省教育厅重点项目 ( 99A0 2 4)
