| 浙江省速生杉木纤维形态及基本密度* |
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| 引用本文： | 余学军,韩红,田荆祥,王仁东,周迎春.浙江省速生杉木纤维形态及基本密度*[J].浙江农林大学学报,1997,14(3):220-224. |
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| 作者姓名： | 余学军 韩红 田荆祥 王仁东 周迎春 |
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| 作者单位： | 1.浙江林学院林工系, 临安 311300;2.浙江省衢州市林业局;3.浙江省庆元县林场 |
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| 基金项目： | 浙江省自然科学基金资助项目 |
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| 摘 要： | 对浙江省临安市、开化县和庆元县3个产地速生杉木的纤维形态及基本密度的观测结果表明:胸高处由髓心向外，纤维长度随年轮数的增加而增加，由基部到梢部先增大后减小；纤维的平均长度( L ) 产地不同而不同，L临安 L开化 L庆元；纤维的长宽比随年轮数的增多而逐渐增大。速生杉木胸高部位基本密度开化临安庆元。同一杉木不同高度上基本密度的变化规律为:基部和梢部较大，中部较小；自髓心向外，髓心较大，后逐渐变小( 2～4年轮)，此后(第6年轮后) 逐步平稳增大。基本密度的差异也存在于不同产地的杉木之间。
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| 关 键 词： | 杉木 速生材 木材性质 纤维形态 密度测定 |
| 收稿时间： | 1997-05-21 |
FiberMorphology and Basic Density of Fast-growing Chinese Fir From Zhejiang. |
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| Yu Xuejun,Han Hong,Tian Jingxiang,Wang Rendong,Zhou Yingchun..FiberMorphology and Basic Density of Fast-growing Chinese Fir From Zhejiang.[J].Journal of Zhejiang A&F University,1997,14(3):220-224. |
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| Authors: | Yu Xuejun Han Hong Tian Jingxiang Wang Rendong Zhou Yingchun |
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| Institution: | 1.Zhejiang Forestry College, Lin’ an 311300, PRC |
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| Abstract: | Observations of the fiber morphology and basic density of fast-growing Chinese fir in Lin an City, Kaihua County and Qingyuan County of Zhejiang Province showed that at the breast height fiber length increased with the increase of annual ring from the pitch outwards. From the base of a shoot to terminal the average fiber length ( L ) decreased, which varied from place to place, LLin an LKaihua LQingyuan. The ratio of length to width increased with the growth of annual rings. Basic density ( ) at the breast height of the fast-growing Chinese fir waskaihua Lin an Qingyuan. The variation in basic densityat dif ferent height of the same Chinese fir was that there was a greater change at the base and the terminal of a shoot, than at the middle parts. From the pitch outwards, the basic density decreased from 2～4 annual rings, but increased evenly and gradually af ter the sixth annual ring. The difference of hasic density was obvious among the different Chinese firareas. |
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