间伐对冀北油松木材组织比量和管胞形态特征的影响  

Effect of Thinning on Wood Tissue Ratio and Tracheid Morphological Characteristics of Pinus tabulaeformis in Northern Hebei Province

作　　者：王梦蕾 张伟 李晓梅 李晓顺 孙照斌[1] Wang Menglei;Zhang Wei;Li Xiaomei;Li Xiaoshun;Sun Zhaobin(Faculty of Forestry,Hebei Agricultural University,Baoding Hebei 071000,China;Natural Resources and Planning Bureau of Linzhang County,Handan Hebei 056600,China)

机构地区：[1]河北农业大学林学院,河北保定071000 [2]临漳县自然资源和规划局,河北邯郸056600

出　　处：《西南林业大学学报（自然科学）》2022年第3期148-153,共6页Journal of Southwest Forestry University：Natural Sciences

基　　金：“十三五”国家重点研发计划专项(2017YFD0600501)资助。

摘　　要：选取抚育间伐和未间伐长势良好的林木作为研究对象,探究间伐对冀北山区油松木材组织比量与管胞形态特征的影响。结果表明:油松横切面主要为管胞、木射线和树脂道,径切面上,射线薄壁细胞与轴向管胞间交叉场纹孔式为窗格型,少数为松木型;弦切面上,有单列和纺锤形木射线,含深色树脂。间伐与未间伐油松的微观构造特征基本一致;间伐与未间伐油松管胞长度、宽度、长宽比、壁腔比均值分别为3 439μm与3 323μm、46.57μm与44.83μm、73.20与73.51、0.42与0.41间伐油松管胞长度、宽度和壁腔比均大于未间伐。从组织比量来看,间伐油松和未间伐油松没有显著差异。Tending thinning and unthinning trees with good growth are selected as the research objects to explore the effect of thinning on the wood tissue ratio and tracheid morphology characteristics of Pinus tabulaeformis in the mountainous area of northern Hebei. The results show that the transverse section of P. tabulaeformis mainly consists of tracheids, wood rays and resin channels. On the radial section, the cross-field pattern between the ray parenchyma cells and the axial tracheids is window-pane type, and a few are pine-type;on the cut surface of the string, there are single-row and spindle-shaped wooden rays, containing dark resin. The microstructure characteristics of thinning and unthinning P. tabulaeformis are basically the same. The average values of the length, width, aspect ratio and wall-to-cavity ratio of the thinning and unthinning P. tabulaeformis tracheids were3 439 μm and 3 323 μm, 46.57 μm and 44.83 μm, 73.20 and 73.51, 0.42 and 0.41;the length of the thinning P. tabulaeformis tracheids, width, aspect ratio and wall-to-cavity ratio are all larger than those of unthinning. In terms of tissue ratio, there is no significant difference between thinning and unthinning P. tabulaeformis.

关 键 词：油松 木材 管胞形态 组织比量 

分 类 号：S781[农业科学—木材科学与技术]