施肥对尾巨桉木材纤维与木材基本密度的影响  

Effects of Fertilizer on Wood Fibre and Basic Density in E.urophylla×E. grandis

作　　者：陈健波[1,2] 李昌荣[1,2] 吴永富 项东云[1,2] 苏杰兴 卢翠香[1,2] 

机构地区：[1]广西林业科学研究院,广西南宁530002 [2]国家林业局中南速生材繁育重点实验室,广西南宁530002 [3]广西国有东门林场,广西扶绥532108 [4]广西国有高峰林场,广西南宁530001

出　　处：《安徽农业科学》2012年第16期8985-8987,共3页Journal of Anhui Agricultural Sciences

基　　金：广西重大科研项目"桉树人工林生态效应与调控机制研究";国家林业公益性行业科研专项(201104003);世界银行贷款广西综合林业发展与保护项目科研推广课题(KT-11;KT2-2;KT5-1);广西科学研究与技术开发计划课题(桂科攻1123004-3A)

摘　　要：[目的]研究施肥对尾巨桉木材纤维与木材基本密度的影响。[方法]以18a生3种不同施肥处理的尾巨桉无性系木材为研究材料,研究木材纤维特征、木材基本密度及变异情况。[结果]3种施肥处理的木材基本密度、纤维长度、纤维长宽比、壁厚、壁腔比在树干径向方向由髓心向外都有逐渐增大的变化趋势,而纤维腔径在树干径向方向由髓心向外有逐渐减小的变化趋势,纤维宽度变化在3种施肥处理间不一致。3种施肥处理间只有纤维壁腔比差异达到显著水平,施肥量中间处理的纤维壁腔比值显著高于其余2个处理。[结论]不同施肥处理对木材纤维特性除纤维壁腔比之外差异不显著。[Objective] Effects of Fertilizer on Wood Fibre and Basic Density in E.urophylla×E.grandis were studied.[Method]The fibre characteristics and basic density and their variations were investigated in 18-year-old E.urophylla×E.grandis with three fertilizer treatments.[Result]The basic density,fibre length,ratio of fibre length to width,wall thickness of fibre and ratio of wall thickness of fibre cell to the cavity diameter（T/D） increased from pith to bark in each of the three treatments while the cavity diameter of fibre decreased.Variation of fibre width from pith outwards was inconsistent between treatments.The ratio T/D was influenced significantly by the fertilizer treatments,with higher ratio in the mid-fertilizer treatment.[Conclusion]Three treatments on the wood fibre charaters except the ratio T/D had no significant differences.

关 键 词：施肥 尾巨桉无性系 木材纤维特征 木材基本密度 

分 类 号：S753.532[农业科学—森林经理学]