该文将常见的林冠截留降雨模型进行了分类．为充分利用以前不同形式的研究结果来定量评价大面积生态林业工程的生态效益，十分有必要将它们转换为某一标准模型．该文提出了一个相对简单的标准模型，并探讨了模型转换途径，汇总和分析了模型参数的变化规律 This paper classifies the common canopy rainfall model. In order to fully utilize the previous results of different forms to quantitatively evaluate the ecological benefits of large-scale ecological forestry projects, it is necessary to convert them into a standard model. In this paper, a relatively simple standard model is proposed, and the way of model transformation is discussed. The variation rules of model parameters are summarized and analyzed