西北林学院学报2017，Vol.32Issue(4)：224-228,5.DOI:10.3969/j.issn.1001-7461.2017.04.37
不同状态胡杨木材物理性质变化研究
Wood Physical Property of Populus euphratica Timber with Differnent Status
摘要
Abstract
In order to fully understand the change rules of of Populus euphratica timber with different status and to analyze its strong decay resistance,living trees,felled trees,and decaying trees were sampled from the poplar protection zone in Ejina Banner of Inner Mongolia to measure the relative parameters,such as density,dry shrinkage,hygroscopicity,and dimensional stability based on the China national standards.X-ray diffraction was adopted to characterize wood fiber crystallinity.Physical properties of the woods with three different status were compared.The results showed that there were significant differences in air-dry density,absolute-dry density,tangential shrinkage rate,radial shrinkage rate,and volume shrinkage rate.As time went on,the density and dry shrinkage reduced.There were no obvious differences in shrinkage of tangential to radial,hygroscopicity,dimensional stability,and wood fiber crystallinity.Based on China wood material classification standard,P,euphratica belonged to light level wood with great dimensional stability.The strong decay resistance was closely related to its excellent physical properties.关键词
胡杨木/物理性质/枯倒木/强耐腐性Key words
Populus euphratica/physical property/fallen dead wood/strong resistance分类
农业科技引用本文复制引用
宁国艳,王喜明,王哲..不同状态胡杨木材物理性质变化研究[J].西北林学院学报,2017,32(4):224-228,5.基金项目
内蒙古自治区科技创新团队-沙生灌木纤维化能源(202044) （202044）
草原英才创新团队-沙生灌木纤维能源化开发(108061). （108061）
