松材线虫病病死木木材物理力学性质测定  

Comparing physical and mechanical properties of dead wood resulting from pine wilt disease and healthy wood

作　　者：来燕学 马灵飞[2] 池树友 张毅峰 王亚红 金永明[2] 

机构地区：[1]浙江省宁波市森林病虫防治检疫站,浙江宁波315000 [2]浙江林学院工程学院,浙江临安311300

出　　处：《浙江林学院学报》2008年第1期7-10,共4页Journal of Zhejiang Forestry College

基　　金：浙江省宁波市农科教结合资助项目(2003NK26)

摘　　要：对当年、前1年受松材线虫病Bursaphelenchus xylophilus危害的病死马尾松Pinus massoniana及健康马尾松木材的物理力学性质进行了测定。结果表明，松材线虫病病死木木材的静曲强度、弹性模量、抗拉强度、抗压强度、冲击韧性和握钉力与健康材差异显著，密度与健康材差异不显著。健康木材的静曲强度比松材线虫病木材高30％；弹性模量比病材高20％；病木的抗拉强度只有健康材的54．1％～76．9％；健康材抗压强度比病材高出26．8％；健康材冲击韧性比病材高21．0％～32．5％；病木的弦向握钉力是健康材的77．3％～91．7％；径向握钉力是健康材的65．9％～70．1％；健康材密度较病材高出15．0％。In order to save wood resources, we also use disease-infected pinewoods after killing the nematode and the insect vector in wood. But is the disease will affect pinewood characteristics9. This study compared the physical and mechanical properties of healthy wood from Pinus massoniana gathered in 2004 and dead woods that had suffered pine wilt disease and died in 2003 and 2004. Results indicated that healthy wood was significantly greater than dead wood for modulus of rupture （MOR） （P 〈 0. 01 ）, modulus of elasticity （MOE） （P 〈0.05 ）, tensile strength （P 〈0. 01 ）, compression strength （P 〈0. 01 ）, impact toughness （P 〈0.01 ） and nail-holding performance （dead wood 65.9 % -91.7% less） , while there were no significant differences for density. Except of density, dead wood can not compare with the health wood , so we should make a difference between the two woods. [ Ch, 3 tab. 11 ref. ]

关 键 词：林业工程 松材线虫病 木材材性 物理力学性质 马尾松 

分 类 号：S781[农业科学—木材科学与技术]