森林与环境学报2018，Vol.38Issue(3)：290-296,7.DOI:10.13324/j.cnki.jfcf.2018.03.006
高产脂马尾松间伐材的材性分析
Analysis on basic properties of Pinus massoniana thinning wood with high-yield rosin
摘要
Abstract
The basic properties of Pinus massoniana thinning wood with high-yield rosin from progeny test forest were investigated,and their variation in both radial and longitudinal directions were discussed,then the correlation among the properties was analyzed.The results showed that the annual ring width and latewood rate were 6.64 mm and 9.44％,respectively.The basic density and oven-dry density were 0.33 and 0.36 g·cm-3,respectively.The longitudinal,radial,tangential and volume oven-dry shrinkage were 0.43％,2.81％,4.94％and 8.02％,respectively.The length,diameter,wall thickness,length/diameter,wall thickness/lumen diameter and flexible coefficient of the earlywood(latewood)were 2.68 mm(3.12 mm),40.70 μm(33.24 μm),4.60 μm(7.08 μm),64.98(92.90),0.31(0.83)and 77.14(57.26),respectively.Compared with the properties of wood nearby core,wood nearby bark showed higher density,thicker and slenderer cell wall,smaller oven-dry longitudinal shrinkage,and larger oven-dry volume shrinkage.Along the longitudinal direction from trunk base to treetop,the wood density as well as the tangential,radial and volume oven-dry shrinkage decreased,and the indexes of tracheid morphology generally first increased and then decreased.The latewood rate was significantly correlated with wood density and oven-dry shrinkage,while the wood density was significantly correlated with oven-dry tangential shrinkage,oven-dry volume shrinkage,and diameter and length/diameter of earlywood tracheids.关键词
马尾松/高产脂/间伐材/材性/相关性分析Key words
Pinus massoniana Lamb./high-yield rosin/thinning wood/wood property/correlation analysis分类
农业科技引用本文复制引用
胡拉,徐慧兰,冯源恒,杨章旗..高产脂马尾松间伐材的材性分析[J].森林与环境学报,2018,38(3):290-296,7.基金项目
国家科技支撑计划项目"南亚热带马尾松高产脂及材脂兼用林培育技术研究" (2015BAD09B0102-2). （2015BAD09B0102-2）
