四川农业大学学报 ›› 1998, Vol. 16 ›› Issue (01): 140-144.doi: 10.16036/j.issn.1000-2650.1998.01.021

• 研究论文 • 上一篇    下一篇

白榆优良无性系木材物理力学性质的主成分分析

陈志林1, 田野2, 张超英3, 张忠义1   

  1. 1. 河南农业大学, 郑州 450002;
    2. 河南省林科所, 郑州 450002;
    3. 河南省经济林和林木种苗站, 郑州 450002
  • 收稿日期:1997-10-16 出版日期:1998-03-31 发布日期:2017-04-21
  • 基金资助:
    林业部"八五"重点项目"白榆工业用材良种选育"

THE PRINCIPAL COMPONENT ANALYSIS ON THE PHYSICAL AND STRENGTH PROPERTIES OF ULMUS PUMILA CLONES WOOD

Chen Zhilin1, Tian Ye2, et al3   

  1. 1. Henan Agricultural University;
    2. Forestry Research Institute of Henan
  • Received:1997-10-16 Online:1998-03-31 Published:2017-04-21

摘要: 以14个白榆优良无性系木材物理力学性质测试数据为研究材料,采用主成分分析方法,将影响白榆木材物理力学性质的12个指标分为强度指标和干缩指标两大主成分。讨论了年轮宽度与木材强度性能和干缩性能的关系。同时对前两个主成分坐标值采用排序聚类,将14个无性系划分为3类。因而对白榆的选种育种及工业用材的定向培育生产具有指导意义。

关键词: 白榆优良无性系, 木材物理力学性质, 主成分分析, 排序聚类

Abstract: The paper is based on the test data from the physical and strength properties of 14 Ulmus Pumila clones. With principal component analysis,12 factors of affecting the wood physical and strength properties are divided into two classes——strength index,shrinkage index. Whether annual ring width markedly affects both strength properties and shrinkage properties of the wood is discussed. With arrange cluster, 14 clones of Ulmus Pumila are divided into three classes, which is good for the directive practice of the seed selection and directive breeding for Ulmus Pumula.

Key words: ULMUS PUMILA CLONE, PHYSICAL AND STRENGTH PROPERTIES OF WOOD, ARRENGE CLUSTER, PRINCIPAL COMPONENT ANALYSIS

中图分类号: 

  • S781.2