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通过对表现直径分布函数的筛选，选择Ｗｅｉｂｕｌ分布函数为红皮云杉人工林直径的分布函数，分别以参数预测法（ＰＰＭ）和参数回收法（ＰＲＭ）建立分布模型，描述红皮云杉人工林直径结构分布，并通过对模型精度的检验，说明Ｗｅｉｂｕｌ分布函数适合于描述红皮云杉人工林的分布，ＰＰＭ和ＰＲＭ均达到精度要求，但是ＰＲＭ的精度要明显高于ＰＰＭ，参数回收模型是建立全林整体模型的基础．
We select the distribution function of Weibul distribution function as the distribution function of diameter of Picea koraiensis plantation by screening the diameter distribution function, and establish the distribution model by parameter prediction method (PPM) and parameter recovery method (PRM) According to the test of model accuracy, Weibul distribution function is suitable for describing the distribution of Picea koraiensis plantation. Both PPM and PRM meet the precision requirements. However, the accuracy of PRM is significantly higher than that of PPM. The parameter recovery model It is the basis for establishing the whole forest model.