楸树新无性系木材的物理力学性质

林业科学 ›› 2013, Vol. 49 ›› Issue (9): 126-134.

楸树新无性系木材的物理力学性质

麻文俊¹, 张守攻¹, 王军辉¹, 翟文继², 崔永志³, 王秋霞²

1. 中国林业科学研究院林业研究所国家林业局林木培育重点实验室北京 100091;
2. 河南省南阳市林业科学研究所南阳 473000;
3. 东北林业大学哈尔滨 150040

收稿日期:2012-06-11 修回日期:2013-06-02 出版日期:2013-09-25 发布日期:2013-09-19
通讯作者: 王军辉
基金资助:
林业公益性行业科研专项(201104001);农业成果转化资金项目"珍贵用材树种楸树优良新品种的中试与示范"(2008GB24320414)。

Timber Physical and Mechanical Properties of New Catalpa bungei Clones

Ma Wenjun¹, Zhang Shougong¹, Wang Junhui¹, Zhai Wenji², Cui Yongzhi³, Wang Qiuxia²

1. Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration Research Institute of Forestry, CAF Beijing 100091;
2. Nanyang Forestry Research Institute, Henan Province Nanyang 473000;
3. Northeast Forestry University Harbin 150040

Received:2012-06-11 Revised:2013-06-02 Online:2013-09-25 Published:2013-09-19

摘要/Abstract

摘要：

对采自于河南省南阳市的21年生楸树新无性系宛楸8401和宛楸8402与生产上广泛应用的金丝楸无性系进行木材主要物理力学性质的对比研究。结果表明:3个无性系的基本密度、气干密度、端面硬度、弦面硬度、径面硬度、抗弯强度、抗弯弹性模量、顺纹抗压强度、顺纹抗拉强度、冲击韧性、弦向抗剪强度和径向抗剪强度差异极显著,宛楸8401和金丝楸相近,且显著优于宛楸8402;3个无性系的成熟材与幼龄材的物理力学性质也表现出显著差异;与黄菠萝、核桃楸、红椿和香樟相比,宛楸8401和金丝楸与香樟和黄菠萝相近,优于红椿,但是比核桃楸稍差,宛楸8402与红椿相近。

关键词: 楸树, 新无性系, 木材, 物理力学性质, 差异

Abstract:

In order to study the differences of physical and mechanical properties between two new Catalpa bungei clones "Wanqiu 8401", "Wanqiu 8402" and "Jinsiqiu", three ramets of each clone were determination. The results showed that basic density, air-dried density, hardness of end surface, hardness of tangential section, hardness of radial section, bending strength, modulus of elasticity, compression strength parallel to grain, tensile strength parallel to grain, toughness, shear strength parallel to grain of tangential direction and shear strength parallel to grain of radial direction had significant differences among clones. "Wanqiu 8401" and "Jinsiqiu" were highly similar, which was significantly better than "Wanqiu 8402". Also, significant differences was obversed between mature wood and juvenile wood of three clones. Additionally, three clones were comparison with other timber which were popular in China, "Wanqiu 8401" and "Jinsiqiu" were better than Toona ciliate, but worse than Juglans mandshurica, "Wanqiu 8402" and Toona ciliata were highly similar, "Wanqiu 8401", "Jinsiqiu" and Cinnamomum camphora, Phellodendron amurense were highly similar.

Key words: Catalpa bungei, new clones, timber, physical and mechanical properties, differences

中图分类号:

S781

麻文俊, 张守攻, 王军辉, 翟文继, 崔永志, 王秋霞. 楸树新无性系木材的物理力学性质[J]. 林业科学, 2013, 49(9): 126-134.

Ma Wenjun, Zhang Shougong, Wang Junhui, Zhai Wenji, Cui Yongzhi, Wang Qiuxia. Timber Physical and Mechanical Properties of New Catalpa bungei Clones[J]. Scientia Silvae Sinicae, 2013, 49(9): 126-134.

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