安徽农业科学2011，Vol.39Issue(9)：5274-5277,4.
擎天树树皮率·心材率及木材密度研究
Research on Bark Percentage, Heartwood Percentage and Wood Density of Shorea chinensis
摘要
Abstract
[ Objective ] The study aimed to make clear the wood property of Shorea chinensis. [ Method ] S. chinensis planted in 1978 was selected from Fengjiang National Forest Park of Guangxi in Nanning City, the green wood volume were determined by the drainage method and the bark percentage was determined by the volume method and the quality method so as to study the density, bark percentage, moisture content and heartwood percentage of the green wood of S. chinensis. [Result] The green wood density of S. chinensis was reduced with the rising of tree height and had a little change after the first living branch, with the average value of 1. 079 g/cm3. The basic density was increased with tree ages, its longitudinal change was reduced with the rising of the tree height, and it had a little change after the first living branch, with the average value of 0.578 g/cm3. The moisture content of green wood was decreased from the pith to the sapwood and had a trend of “small-big-small-big” with the increasing of tree height, and its average value was 87.8％. The bark volume percentage and bark quality percentage were increased with the rising of the tree height and their average values were 19.1％ and 20.1％ resp . The heartwood percentage was reduced with the rising of the tree height and its average value was 13.9％. [ Conclusion] This study provided the scientific basis for the protection of rare tree species in China and the development of S. chinensis.关键词
擎天树/密度/树皮率/心材率/生材含水率Key words
Shorea chinensis/ Density/ Bark percentage/ Heartwood percentage/ Moisture content of green wood分类
农业科技引用本文复制引用
符韵林,黄松殿,韦鹏练,袁振双,刘晓玲..擎天树树皮率·心材率及木材密度研究[J].安徽农业科学,2011,39(9):5274-5277,4.基金项目
广西自然科学基金重点项目(2010GXNSFD013024) （2010GXNSFD013024）
"十一五"广西林业科技项目(桂林科字[2010]第19号). （桂林科字[2010]第19号）
