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Study on Shading of Apricot Intercropping With Agricultural Crops on the Terrace Land in the Semiarid Area of the Western Part of Liaoning

LU Guo-zhen,BU Zhao-dong,TIAN Fu-jun,WANG Shi-zhong (Liaoning Provincial Arid Area Afforestation Institute,Jianping 122400,Liaoning,China)  
The relationship between tree shading area and forest age and shelterbelt trend was studied.Using the shading index and shading extent,were described diurnal variation law and effects of shading on the upper and lower of the terrace.
【CateGory Index】: S718.45
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