The Korean Journal of Ecology
- 제8권2호
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- Pages.99-107
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- 1985
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- 1225-0317(pISSN)
光合成有效放斜와 葉向과의 關係
The Relationship between Photosynthetic Active Radiation and Leaf Orientation
- Chang, Nam-Kee (Dept. of Biology, College of Education, Seoul National University) ;
- Heui-Baik Kim (Dept. of Biology, College of Education, Seoul National University)
- 발행 : 1985.04.01
초록
Photosynthetically Active Radiation (PAR) affects the growth of plants as well as their photosynthetic rates. A mathematical model for intercepted solar radiation on the tilted leaf with any azimuth angle was established and the leaf orientation in which receives the maximum solar radiation was determined each month, during the growing season, and for an year. PAR was maximized at the leaf elevation of 50。~60。 in the winter, at that of 20。~40。. On the whole the leaves of tilt angle 0。~40。 received much radiation comparing with those of other tilt angles. The theoretical tendencies were compared with the distribution of leaf orientation measused practically. The average leaf elevation of maple tree was 17.0。
키워드