3种核桃木材纤维形态和气干密度的比较分析  

Fibre Morphology and Air-dry Density of Three Types of Walnut Wood

作　　者：宋恋环 秦芳 王军锋[1] 苏利荣 曾成城 Song Lianhuan;Qin Fang;Wang Junfeng;Su Lirong;Zeng Chengcheng(Guangxi Forestry Research Institute,Guangxi Quality Control of Wood Resources Cultivation Research Center of Engineering and Technology,Nanning,Guangxi 530002,China;Agricultural Resources and Environmental Research Institute,Guangxi Academy of Agricultural Sciences,Nanning,Guangxi 530007,China)

机构地区：[1]广西壮族自治区林业科学研究院广西木材资源培育质量控制工程技术研究中心,广西南宁530002 [2]广西壮族自治区农业科学院农业资源与环境研究所,广西南宁530007

出　　处：《广西林业科学》2020年第3期447-450,共4页Guangxi Forestry Science

基　　金：广西创新驱动发展专项资金项目(桂科AA17204058-16);广西农业科学院基本科研业务费专项项目(2021YT041)。

摘　　要：利用光学显微镜和图像测量分析软件对3种核桃木材的纤维形态进行测量与分析,对3种木材的纤维长度、纤维宽度、纤维壁腔比和气干密度等进行对比研究,以期为核桃的定向培育提供基础数据。结果表明,泡核桃(Juglans sigillata)的纤维长度、纤维宽度、纤维腔径和双壁厚均最大,分别为1053μm、31μm、19.3μm和11.9μm;薄壳山核桃(Carya illinoinensis)的纤维长宽比和壁腔比均最大,分别为48和1.05;云新核桃的气干密度最大(0.66 g/cm^3)。3种核桃木材的纤维均适合造纸,可作为纸浆材;云新核桃和泡核桃木材的纤维长宽比均大于33,纤维壁腔比均小于1,为优等造纸原料;薄壳山核桃木材的纤维长宽比大于33,纤维壁腔比约等于1,为中等造纸原料。总体来说,泡核桃最适合制浆造纸。Optical microscope and image measurement soft ware were used to measure and analyze fibre morphology of three types of walnut wood,and fibre length,fibre width,fibre wall-cavity ratio and air-dry density of three types of wood were compared and analyzed in order to provide basic data for walnut directive cultivation.Results showed that Juglans sigillata had the largest fibre length,fibre width,fibre cavity diameter and double-wall thickness,which were 1053μm,31μm,19.3μm and 11.9μm,respectively.Carya illinoinensis had the largest fibre length-width ratio and wall-cavity ratio,which were 48 and 1.05,respectively.Walnut Yunxin had the largest air-dry density(0.66 g/cm^3).Fibres of 3 types of walnut wood were suitable for making paper as pulpwood material.Walnut Yunxin and J.sigillata were high-quality raw materials for making paper,with fibre length-width ratio greater than 33 and wallcavity ratio less than 1.C.illinoinensis was medium raw material for making paper with fibre length-width ratio greater than 33 and wall-cavity ratio approximately equal to 1.In conclusion,J.sigillata was most suitale for pulping and making paper.

关 键 词：核桃木材 纤维形态 纤维特征参数 气干密度 

分 类 号：S664.1[农业科学—果树学]