泡桐树冠结构与抗风性研究  

Study on relationship between wind-resistance and crown structure of paulownia

作　　者：施士争[1] 倪善庆[1] 周友仁 吴少兵 吕余文 

机构地区：[1]江苏省林业科学研究所,东台市林场,南京市老山林场,南京市浦口区永丰林业站

出　　处：《江苏林业科技》1996年第2期6-9,共4页Journal of Jiangsu Forestry Science & Technology

基　　金：国家"八五"攻关专题

摘　　要：调查了６个泡桐无性系的１２个树冠结构因子，并对９个因子进行了主因子分析。结果表明，将９个因子综合为２个主因子，可以包含９０．５％的树冠信息。并认为通过树冠结构来选择抗风无性系是可行的；理想的抗风无性系应是一级侧枝多而较细，新梢夹角较小，树冠较高的细枝塔形结构。characteristics of Paulownia crown structure of 6 paulownia clones were investigated, and principal component analyeis was adapted to analyse these clone's crown structure according to 9 extremely different characteristics.The result showed that these charateristics could be classified as two principal components of which accumulative duty rate reached 90.7%.It is feasible to select wind-resistance clone through crown structure.The idedl clone with wind-resistance should have a crown of slender-branches and tower-shaped structure,with more and much slender first ord.Branches,smaller angle of the tip,bigger relative hight rate of crown to the tree

关 键 词：泡桐 抗风性 树冠结构 

分 类 号：S792.43[农业科学—林木遗传育种]