| 树冠遮荫动态研究 |
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| 引用本文： | 吴力立,王宗淳.树冠遮荫动态研究[J].南京林业大学学报(自然科学版),1991,15(2):61-66. |
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| 作者姓名： | 吴力立 王宗淳 |
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| 作者单位： | 南京林业大学
(吴力立)，南京林业大学(王宗淳) |
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| 摘 要： |
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| 关 键 词： | 树冠 遮荫 投影 |
A STUDY ON TREE SHADOW MOVEMENTS |
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| Wu Lili,Wang Zongchun.A STUDY ON TREE SHADOW MOVEMENTS[J].Journal of Nanjing Forestry University(Natural Sciences ),1991,15(2):61-66. |
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| Authors: | Wu Lili Wang Zongchun |
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| Institution: | Nanjing Forestry University |
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| Abstract: | In the study, tree crowns are grouped into three types: Conical, Spherical, and Cylindrical shape. Shadow forms on the ground of different crown shapes are studied on the principles of projective geometry, and formulae for shadow areas are developed. In addition, the change of shadow forms and its movement orbits are also discussed in detail. |
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| Keywords: | Tree crown Shadow Projection |
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