摘要
以超短轮伐栽培的3年生三倍体毛白杨无性系为试验材料,在分析超短轮伐纸浆材基本密度以及化学组分的基础上探讨超短轮伐期栽培的可行性。结果表明:三倍体毛白杨无性系对超短轮伐纸浆材基本密度影响极显著,造林密度对超短轮伐纸浆材基本密度影响显著,3年生超短轮伐纸浆材基本密度在0.247～0.282g·cm-3之间变化。无性系对超短轮伐纸浆材聚戊糖含量、木素含量、综纤维素含量以及α-纤维素含量影响显著,而造林密度以及无性系与造林密度间相互作用对超短轮伐纸浆材化学组分的影响均不显著。超短轮伐纸浆材的苯醇抽出物含量介于3.68%～4.39%之间,戊聚糖含量介于12.86%～13.47%之间,木素含量介于18.16%～19.77%之间,综纤维素含量介于74.91%～77.61%之间,α-纤维素含量介于40.28%～43.49%之间。
To determine feasibility of intensive short-rotation management of triploid hybrids of Populus tomentosa, wood basic density and chemical components were in detail investigated in 3-year-old short-rotation pulpwood plantations. The results indicated that there were extremely significant differences in wood basic densities within clones. There were also significant differences in wood basic densities within spacing. Wood basic density of 3-year-old pulpwood plantation ranged from 0.247 to 0.282 g·cm-3. Significant differences were found in contents of pentosam, ligin, holocellulose and α-cellulose within triploid clones, and no differences in content of benzene-alcohol extractive of chemical components within spacing and interaction between clones and spacing. Content of phenol-alcohol extractive of 3-year-old pulpwood plantation ranged from 3.68% to 4.39%.Content of pentosan ranged from 12.86% to 13.47%. Content of ligin varied from 18.16% to 19.77%.Content of holocellulose changed from 74.91% to 77.61%. And content of α-cellulose varied from 40.28% to 43.49%.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2011年第11期133-138,共6页
Scientia Silvae Sinicae
基金
中央高校科研事业费(YX2010-14)
国家"十一五"科技支撑课题(2006BAD32B01)
关键词
三倍体毛白杨
纸浆材
木材基本密度
化学成分
triploid hybrids of Populus tomentosa
pulpwood
wood basic density
chemical component
