摘要
巨桉和剥皮桉是当前我国重要的进口人工林速生材种,广泛用于人造板、家具、室内装修及制浆造纸等行业。比较研究了两种木材的分布、构造特征及主要物理力学性质,结果表明两者在种间存在较大差异:巨桉主要分布于南北回归线附近的亚热带和热带区域,而剥皮桉则主要分布于赤道附近的热带地区;木材构造上主要表现为巨桉较剥皮桉生长轮明显、管孔数量少、纤维长;木材主要物理力学性质方面,巨桉密度、顺纹抗压强度、抗弯强度、抗弯弹性模量等均高于剥皮桉。
Eucalyptus grandis and Eucalyptus deglupta are main fast-growing woods imported to China.They are widely used in wood-based panels（such as plywood,joinery board,finger-joint panel）,furniture,interior decoration,pulp and papermaking industries.Comparative research was carried out on the distribution,wood structure,main physical and mechanical properties between Eucalyptus grandis and Eucalyptus deglupta .The results showed many large differences between the two species： Eucalyptus grandis is mainly grown in subtropical and tropical areas near the tropic of Cancer and Capricorn,while the Eucalyptus deglupta is mainly distributed in tropics near the equator;the differences in the wood structure were that the growth ring of Eucalyptus grandis was more obvious,the number of vessel was small,and the fiber length was longer than that of Eucalyptus deglupta .In terms of main physical and mechanical properties,the density,compressive strength parallel to the grain,flexural strength and flexural modulus of elasticity of Eucalyptus grandis were higher than those of Eucalyptus deglupta.
作者
郑欣欣
田佩彬
潘彪
ZHENG Xin-xin;TIAN Pei-bin;PAN Biao(College of Materials Science and Engineering,Nanjing Forestry University,Nanjing Jiangsu 210037,China)
出处
《林业机械与木工设备》
2018年第11期36-40,52,共6页
Forestry Machinery & Woodworking Equipment
基金
江苏高校品牌专业建设工程资助项目(PPZY2015B150)
关键词
巨桉
剥皮桉
分布
构造特征
木材性质
Eucalyptus grandis；Eucalyptus deglupta
distribution；structure features；wood properties
