| 3种桉树组成抗性评价模型构建与应用分析 |
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| 引用本文： | 常明山,文娟. 3种桉树组成抗性评价模型构建与应用分析[J]. 安徽农业科学, 2012, 40(20): 10459-10461 |
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| 作者姓名： | 常明山 文娟 |
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| 作者单位： | 1. 广西壮族自治区林业科学研究院,国家林业局中南速生材繁育实验室,广西优良用材林资源培育重点实验室,广西南宁530002
2. 广西林业勘测设计院,广西南宁,530011 |
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| 基金项目： | 广西林科院基本科研业务费专项 |
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| 摘 要： | 笔者应用主成分分析方法对3种不同桉树组成抗性进行了综合评价分析,建立了桉树组成抗性的综合评价模型,提出了反映桉树叶片主要性状的3个主成分因子及主成分公式。分析表明:尾叶桉3种叶龄叶片组成抗性的综合指标值大小依次为:老叶>成熟叶>嫩叶,说明老叶的组成抗性较成熟叶和嫩叶好;3种桉树成熟叶的综合指标值大小依次为:大叶桉>尾叶桉>窿缘桉,说明大叶桉叶片的组成抗性较尾叶桉和窿缘桉好。
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| 关 键 词： | 主成分分析 桉树 组成抗性 |
The Application and Model Construction Analysis on Constitutive Resistance of Three Eucalyptus Species |
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| Affiliation: | CHANG Ming-shan et al(Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation,Key Laboratory of Central South Fast-growing Timber Cultivation of Forestry Ministry of China,Guangxi Zhuang Autonomous Region Forestry Research Institute,Nanning,Guangxi 530002) |
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| Abstract: | The constitutive resistance of three species of Eucalyptus was evaluated by principal component analysis,and then a comprehensive evaluation model was built up.Three principal components and the formula of principal component were pointed out.The analysis indicated that the comprehensive value of constitutive resistance of three leaf ages decreased in the order of old leaves> mature leaves > tender leaves,illustrating that the constitutive resistance of old leaves was better than that of tender leaves and mature leaves;the constitutive resistance of mature leaves in three species of Eucalyptus was shown as Eucalyptus robusta> Eucalyptus urophylla>Eucalyptus exserta,indicating that the constitutive resistance of Eucalyptus robusta were better than that of Eucalyptus urophylla and Eucalyptus exserta. |
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| Keywords: | Principal component analysis Eucalyptus Constitutive resistance |
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