摘要
通过对不同树龄思茅松人工林密度和力学性质的测定和分析结果表明:思茅松人工林密度和力学性质随着树龄的增加呈增大趋势,达到成熟林后基本稳定,变异较为显著;同树龄不同高度上变异显著,在高度Ⅱ(S3在Ⅲ)达到最大值;三项木材力学性质与木材密度的相关系数随着树高的增加呈降低趋势。
The variation of density and mechanical properties of Pwithus kesiya var.langbianensis.plantation with different ages was determined and analyzed,The results showed： the density and mechanical properties increased with the tree age increasing and reached stability when the tree was ripe,the variation was extremely significant,the variation of the different height with same age was significant and the maximum was Ⅱ（S3 was Ⅲ）;the correlation coefficient between three major mechanical and density declined with the height increasing
出处
《木材加工机械》
2007年第3期19-23,共5页
Wood Processing Machinery
基金
云南省自然科学基金重点资助项目(2003C009Z)
关键词
思茅松
密度
力学性质
变异
Pwithus kesiya var.lang bianensis
density
mechanical property
variation
