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林分株数分布函数和林木生长模型在预估直径生长、径阶株数分布方面已经得到广泛的应用。本文在综合分析各种直径枯损模型的基础上，全面比较和检验了各种模型的适用性和预测精度。结果表明，利用林分株数分布函数或林木生长模型预估林分直径枯损分布，具有结构合理、适用性强及预测精度高等特征，成为预估林分枯损的最佳模型之一。
The stand number distribution function and the tree growth model have been widely used in predicting the diameter growth and the diameter distribution. Based on the comprehensive analysis of various diameter loss models, this paper comprehensively compares and tests the applicability and prediction accuracy of various models. The results showed that estimating the distribution of diameter and diameter of forest stand by using the plant number distribution function or tree growth model has the characteristics of reasonable structure, strong applicability and high prediction accuracy, which is one of the best models for estimating stand loss.