降雨雨滴特征的观测,是研究天然降雨和人工降雨及设计和鉴定人工降雨装置等项工作中不可缺少的一个组成部分。就土壤侵蚀而言,雨滴的大小和大小雨滴的分布,是降雨的基本特征,也是计算一些释雨参数的依据。因此,它是研究一个地区土壤侵蚀发生和演变规律及建立侵蚀数学模型不可缺少的基本资料。关于雨滴滴谱的观测方法有许多种,但其中普遍使用的只有两种,即色斑法和面粉球法。自1973年以来,我们在侵蚀研究工作中一直使用的是色斑法。虽然这种 Observations of the characteristics of rain and raindrops are an indispensable component of research on natural rainfall and artificial rainfall and on the design and identification of artificial precipitation devices. In terms of soil erosion, the distribution of raindrop size and size of raindrops is the basic feature of rainfall and is also the basis for calculating some parameters for releasing rain. Therefore, it is an indispensable basic information for studying the occurrence and evolution of soil erosion in a region and establishing a mathematical model of erosion. There are many ways to observe the raindrops, but only two of them are commonly used, that is, the stain method and the flour ball method. Since 1973, we have been using the stain method in erosion research. Although this