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从生态场理论出发 ,运用邻体干扰模型和遮光影响的方法 ,研究了日本落叶松林冠层光生态场 .根据不同生长级林木之间遮光影响 ,编制了林木遮光系数表 .提出了不同生长级林木间遮光模型 .结果表明 ,7∶0 0～ 1 7∶0 0日本落叶松单冠连续投影是 1个以东西为长轴、南北为短轴的近椭圆形 ;林分内每株树木受到的遮光强度等于近椭圆范围内其它林木对其的遮光和 ;林木受到的遮光强度愈大 ,其光生态效应愈强 ,生长发育愈差 .
Based on the theory of ecological field, the canopy light ecological field of Larix olgensis was studied by using the model of neighbor interference and the influence of shading, and the shading coefficient table of forest trees was compiled according to the shading effect of different growth grade trees. The results showed that the continuous projection of Larix kaempferi single crown was a nearly ellipse with east-west axis as the major axis and north-south as short axis from 7:0 0 to 1 7:0 0. Each tree in the forest was affected by Of the shading intensity is equal to the other ellipses within the scope of the shading and its trees; the greater the shading intensity of the trees received, the stronger their ecological effects of light, the worse the growth and development.