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《CHINESE JOURNAL OF APPLIED ECOLOGY》 1997-02
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Light-ecological field of Larix leoptolois canopy.

Li Shuren,Zao Yong and Yan Zhiping ( Henan Agricultural University, Zhengzhou 450002).  
The light ecological field of Larix leoptolois canopy is studied by means of neighboring disturbed models and shading effect method. Based on shading effect among various growth classes of Larix leoptolois, the shading coefficient table is drawn up,and the shading models of different growth classes are put forward.The results show that the projection of single Larix leoptolo is canopy is an ellipse with east west as its long axis, and south north as its short axis between 7 am to 5 pm. The individual plant shading intensity is the sum of the shading effects of other trees within the ellipse in the forest. The higher the shading field intensity, the stronger the light ecological effect, and the worse the tree growth.
【Fund】: 河南省自然科学基金
【CateGory Index】: S791.223
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