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对栓皮栎（Ｑｕｅｒｃｕｓ ｖａｒｉａｌｉｌｉｓ ＢＬ．）个体发育中不同阶段的植冠构型进行统计分析，结果发现：构型转变主 要表现在分枝格局上，除枝倾角保持稳定外，分枝率、枝间距和叶倾角都发生过显著改变。不同阶段构型 分析的比较表明：１）幼苗阶段，高生长不明显，分枝率低，枝间距较小；２）幼树阶段，高生长和冠幅扩展迅 速，分枝率和叶倾角都较大，枝倾角无明显变化；３）成树阶段，冠幅扩展明显放慢，高生长减缓，分枝率、叶 倾角明显低于幼树阶段，枝倾角仍无明显变化。
The statistical analysis of the canopy configurations at different stages in the individual development of Quercus varialilis BL. Showed that: the configuration transformation mainly manifested in the branching pattern, except that the branch inclination remained stable, the branching rate, branch spacing And leaf inclination have undergone significant changes. The comparison of configuration analysis at different stages showed that: 1) the seedling stage did not have obvious high growth, the branching rate was low and the branch spacing was small; 2) the seedling stage, the high growth and the crown width expanded rapidly, the branching rate and the leaf inclination angle Larger branch angle did not change significantly; 3) In the tree-forming stage, the crown expansion slowed down significantly, the growth slowed down, the branching rate and leaf inclination were significantly lower than that of the sapling stage.