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Regularity of illumince change in natural secondary Oak forests in Sanjing plain

WANG Kun et al  
In this paper,the authors studied the daily and seasonal change laws of illuminace in and out oak forest. Theresults show: the daily changes of illumince are similar in different layers of oak forest and out oak forest. Theseasonal changes are also similar and reach to max value in July. But while the height falls. the peak value gradually disappears in oak forest. Furthermore, this paper also studied the distribution of illuminace in oak forest andabout 95% of solar rediation 4re absorbed by main forest layers.
【CateGory Index】: S712
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