| 四川引种台湾桤木立地条件与木材力学性质的典型相关分析 |
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| 引用本文： | 蒋云贵,杨永前.四川引种台湾桤木立地条件与木材力学性质的典型相关分析[J].四川林业科技,2012,33(3):84-87. |
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| 作者姓名： | 蒋云贵 杨永前 |
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| 作者单位： | 1. 成都木材综合工厂,四川成都,610081
2. 四川农业大学,四川雅安,625014 |
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| 摘 要： | 从四川乐山和广元两地4处各采集3株6 a生的台湾桤木作为试验样木,采用典型相关分析方法对木材力学性质与立地条件进行了分析。结果表明:降低土壤的氮和pH值,有利于提高木材的抗弯弹性模量、抗弯强度和冲击韧性;木材的抗弯强度、冲击韧性和抗劈力随着土壤的钾和磷含量、年降雨量和日照时数的增大而降低。
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| 关 键 词： | 台湾桤木 立地条件 力学性质 典型相关 |
The Canonical Correlativity Between Site Condition and Mechanical Properties of Alnus Formosana Introduced in Sichuan |
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| JIANG Yun-gui,YANG Yong-qian.The Canonical Correlativity Between Site Condition and Mechanical Properties of Alnus Formosana Introduced in Sichuan[J].Journal of Sichuan Forestry Science and Technology,2012,33(3):84-87. |
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| Authors: | JIANG Yun-gui YANG Yong-qian |
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| Institution: | 1. Sichuan Chengdu Timber Manufactory, Chengdu 610081,Sichuan Province; 2. Sichuan Agricultural University ,Yaan 625014,China) |
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| Abstract: | Twelve six-year-old Alnus formosana trees collected from four places in Leshan and Guangyuan of Sichuan province were taken as experimental sample trees and analysis was made of the relationship of the physical properties and site conditions by using the canonical correlation analysis method. Results in- dicated that the modulus of elasticity, bending strength and impact toughness would increase with the de- crease of pH and nitrogen content of the soil ; Meanwhile, the increase of K and P in the soil, sunshine du- ration and annual rainfall would reduce the bending strength, impact toughness and cleavage resistance of Alnus formosana. |
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| Keywords: | Alnus formosana Site condition Mechanical properties Canonical relationship |
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