| 红皮云杉冠层表面光能分布的理论探讨(Ⅰ) |
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| 引用本文： | 赵伟,武亚斌,刘嘉新,王岱英.红皮云杉冠层表面光能分布的理论探讨(Ⅰ)[J].东北林业大学学报,1998(2). |
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| 作者姓名： | 赵伟 武亚斌 刘嘉新 王岱英 |
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| 作者单位： | 东北林业大学，松花江林业物质处 |
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| 摘 要： | 文章通过建立一简单的电偶极子模型，从理论上研究和探讨红皮云杉冠层表面光的散射分布以及表面的光能分布。引入表面空隙度这一新概念，描述在冠层表面中介质（枝叶）分布状况。理论结果表明，冠层表面散射光强的影响很小，它的强度近似于原入射光强的０５％。因此，在单木冠层表面的各个侧面，每个侧面表面光能分布近似均匀的，并且各个侧面的光能分布不同，其中与光入射方向垂直的哪个侧面分布最强。
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| 关 键 词： | 红皮云杉 冠层表面 表面空隙度 电偶极子 光能 散射 |
Exploring on Theory of Light Energy Distribution on Canopy Surface of Picea koraiensis Nakai |
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| Zhao Wei,Wu Yabin,Liu Jiaxin.Exploring on Theory of Light Energy Distribution on Canopy Surface of Picea koraiensis Nakai[J].Journal of Northeast Forestry University,1998(2). |
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| Authors: | Zhao Wei Wu Yabin Liu Jiaxin |
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| Abstract: | The distribution of scattering light and light energy on canopy surface of Picea koraiensis were approached theoretically by making a simple electric dipole model The distribution of branch and leaf on canopy surface was described by means of introducing the conception of surface gap degree Theoretical results showed that the influence of scattering light intensity was very weak, approximating to 5% of incident light intensity Therefore, the light distribution was approximately even on every flank of canopy surface of a tree, but the light distribution of every flank was different, and the distribution of the flank which was vertical to the direction of incident light was the strongest |
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| Keywords: | Picea koraiensis Conopy surface Surface gap degree Electric dipole Light energy Scattering |
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