摘要
该文对三倍体毛白杨无性系木材的热学性质进行了研究 ,结果表明热学性质在无性系间存在显著差异 .比热系数、导热系数和导温系数的无性系重复力分别为 0 5 9,0 77和 0 6 2 ,表明三倍体毛白杨无性系木材的热学性质受到较强的遗传控制 .热学性质与木材密度呈正相关 ,导热系数与木材密度达到极显著相关 ,木材密度与导热系数、导温系数和比热系数的相关系数分别为 0 810 0 ,0 5 778和 0 0 938.
\;Variations in wood thermal properties of triploid clones of \%Populus tomentosa\% Carr.were reported in this paper. There were significant differences among triploid clones of \%Populus tomentosa\% Carr. Clonal repeatabilities of specific heat coefficient,thermal conductivity coefficient and warm transfer coefficient were 0 59,0 77 and 0 62 respectively, indicating that wood thermal properties were under moderate or strong genetic controls.Positive correlation exsited between wood thermal property and wood density.There was significant correlation between thermal conductivity coefficient and wood density. The correlation coefficient between wood density and specific heat coefficient,thermal conductivity coefficient,warm transfer coefficient were respectively 0 810 0,0 577 8,0 093 8.
出处
《北京林业大学学报》
EI
CAS
CSCD
北大核心
2000年第6期21-23,共3页
Journal of Beijing Forestry University
基金
"九五"国家攻关毛白杨子专题!(96 0 11 0 2 0 4 0 2 )
关键词
毛白杨
三倍体无性系
热学性质
木材
遗传变异
Populus tomentosa Carr., triploid clones, wood thermal property, specific heat coefficient, thermal conductivity coefficient, warm transfer coefficient
