赵鹏辉, 赵西平, 郭平平, 等. 栓皮栎采伐剩余物解剖特性研究[J]. 西南林业大学学报(自然科学), 2022, 42(6): 177–182 . DOI: 10.11929/j.swfu.202107069
引用本文: 赵鹏辉, 赵西平, 郭平平, 等. 栓皮栎采伐剩余物解剖特性研究[J]. 西南林业大学学报(自然科学), 2022, 42(6): 177–182 . DOI: 10.11929/j.swfu.202107069
Zhao Penghui, Zhao Xiping, Guo Pingping, Yang Yongqiang, Liu Ziyu, Chang Bingbing. Study on Anatomical Characteristics of Logging Residues of Quercus variabilis[J]. Journal of Southwest Forestry University, 2022, 42(6): 177-182. DOI: 10.11929/j.swfu.202107069
Citation: Zhao Penghui, Zhao Xiping, Guo Pingping, Yang Yongqiang, Liu Ziyu, Chang Bingbing. Study on Anatomical Characteristics of Logging Residues of Quercus variabilis[J]. Journal of Southwest Forestry University, 2022, 42(6): 177-182. DOI: 10.11929/j.swfu.202107069

栓皮栎采伐剩余物解剖特性研究

Study on Anatomical Characteristics of Logging Residues of Quercus variabilis

  • 摘要: 以河南龙峪湾林场的栓皮栎为研究对象,对其树枝和树根解剖构造进行分析,为其加工利用提供基本参数。结果表明:栓皮栎树枝和树干一样,呈现环孔材特征,早材管孔大,呈单行排列,晚材导管呈辐射状排列。树根木质部呈现半环孔材特征,早晚材导管区别不明显,单管孔,呈径列分布。树枝处纤维长度为822.436 μm,宽度为13.527 μm,长宽比为62.354,壁腔比为0.510,纤维占比61.677%;树根的纤维长度为991.929 μm,宽度为17.062 μm,壁厚为8.101 μm,长宽比为63.155,壁腔比为0.980,纤维占比64.667%。树枝木射线高度与宽度为264.305 μm、16.062 μm,射线占比21.127%;树根木射线高度与宽度为355.739 μm、23.917 μm,射线占比23.725%。树枝的薄壁组织的分布和树干类似,在早材内呈环管状,在晚材呈带状排列;树根的早晚材薄壁组织均呈带状排列。栓皮栎树根和树干满足造纸用纤维原料指标,树根的导管大小低于树干,在纸张印刷时,导管黏出的概率低于树干,可提高印刷效率。

     

    Abstract: Taking Quercus variabilis in Longyuwan forest farm of Henan Province as the research object, this paper studies the anatomical structure of its branches and roots in order to provide basic parameters for its processing and utilization. The results showed that the branches of Q. variabilis are the same as the trunk, showing the characteristics of ring-hole wood, the pipe holes of early wood are large and arranged in a single line, and the pipes of late wood are arranged in a radial manner. The xylem of tree root presents the characteristics of semi-ring hole wood, the difference between early and late wood vessels was not obvious, and the single pipe hole was distributed in diameter column. The fiber length at the branch was 822.436 μm, width 13.527 μm, length width ratio was 62.354, wall cavity ratio was 0.510, and the fiber accounted for 61.677%. The fiber length of tree root was 991.929 μm, width 17.062 μm, the wall thickness was 8.101 μm, the length width ratio was 63.155, the wall cavity ratio was 0.980, and the fiber accounted for 64.667%. The ray height and width of branches were 264.305 μm, 16.062 μm, ray accounted for 21.127%, and the root was 355.739 μm, 23.917 μm, accounting for 23.725%. The distribution of parenchyma of branches is similar to that of trunk, which is ring tubular in early wood and banded in late wood. The parenchyma of early and late wood of tree roots were arranged in bands. The root and trunk of Q. variabilis meet the fiber raw material index for papermaking. The duct size of the root was lower than that of the trunk. During paper printing, the probability of duct sticking out was lower than that of the trunk, which can improve the printing efficiency.

     

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