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黄果厚壳桂幼苗未有准确对应于年龄的外部特征，通过对相应样地中幼苗的解析，得出了以幼苗高度和基径对年龄的二元线性回归相对准确地划分幼苗年龄的方法，它优于单纯采用高度级或基径级划分年龄结构的方法，这种方法为非毁坏性的研究现存幼苗的年龄结构提供了依据。1993年起开始对黑石顶森林群落中黄果厚壳桂种群幼苗的年龄结构和高度结构进行了定位观测研究。黑石顶黄果厚壳桂幼苗的年龄结构以2龄和3龄幼苗占优势，幼苗的年龄结构表现出一定的年度波动性，其中由3龄到4龄幼苗多度大幅度地下降。将幼苗以每10cm为一级划分高度级发现黑石顶黄果厚壳桂幼苗中有一个以高度为10—30cm幼苗占明显优势的幼苗库，这个幼苗库主要由2—4龄幼苗组成。
The results showed that the seedlings of A. przewalskii seedlings did not correspond exactly with the external characteristics of age. By analyzing the seedlings in the corresponding plots, the method of dividing seedling age by the binary linear regression of seedling height and basal diameter was drawn. This method is superior to simply adopting the method of dividing the age structure by the heights or the base diameters. This method provides the basis for non-destructive research on the age structure of the existing seedlings. Since 1993, the age structure and height structure of seedlings of Castanopsis carringii population in Heishiding forest community have been studied. The age structure of seedlings of 2 and 3 seedlings dominated the growth of seedlings of Ageratum wallichii. The age structure of seedlings showed a certain annual fluctuation, in which the seedlings from 3rd instar to 4th instar decreased significantly. The seedlings were divided into 10 levels for each level. The results showed that there was a seedling pool dominated by seedlings of 10-30 cm in height. The seedling stock mainly consisted of 2-4 seedlings.