| 杨树新无性系冠层特性及叶片的空间分布 |
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| 引用本文： | 李火根,黄敏仁.杨树新无性系冠层特性及叶片的空间分布[J].应用生态学报,1998,9(4):345-348. |
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| 作者姓名： | 李火根 黄敏仁 |
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| 作者单位： | 南京林业大学林木遗传与基因工程实验室, 南京210037 |
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| 基金项目： | 国家“八·五”科技攻关项目(85-018-01-08) |
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| 摘 要： | 对11个5年生黑杨无性系的冠层特性进行了研究,供试无性系的冠层特性不存在显着差异。但在不同层次、不同部位间差异显着。垂直分布上的差异主要体现于叶片大小上,而水平分布的的差异则主要体现于叶片数目上。群体总的冠层分布模式为叶面积从上至下,从内到外逐渐增加。
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| 关 键 词： | 冠层特性 空间分布 杨树无性系 Logistic回归 广义估计方程 长白落叶松人工林 抚育间伐效应 枯死模型 |
| 收稿时间： | 1996-09-10 |
Crown characteristics and spatial distribution of leaves of new poplar clones. |
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| Li Huogen,Huang Minren.Crown characteristics and spatial distribution of leaves of new poplar clones.[J].Chinese Journal of Applied Ecology,1998,9(4):345-348. |
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| Authors: | Li Huogen Huang Minren |
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| Institution: | Nanjing Forestry University, Nanjing 210037 |
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| Abstract: | The crown characteristics of eleven five years old black poplar hybrid clones were explored.No significant difference of crown characteristics was found among clones, but great difference existed among different layers and parts within the crown.The difference of the vertical distribution of foliage was greatly attributed to leaf size, while for the horizontal variation of foliage, the leaf number played a great part.The general distribution pattern of crown in population was that the leaf area increased from upper to lower and from inner to outer within the crown. |
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| Keywords: | Crown characteristics Spatial distribution Poplar clones |
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