本文从分析土壤水分剖面的动态特性入手,在剖面含水量分布平衡的不同概化基础上,推导出数种下渗方程,不仅从形式上概括了现行常用的 Kostia-kov、Philip、Green-Ampt 等经典下渗方程,并给出了几种新的方程。这些方程真有简单、直观、物理概念明确、便于应用等特点。 Based on the analysis of the dynamic characteristics of soil moisture profiles, several infiltration equations were deduced based on the different generalizations of distribution of water cut in the profiles. The results not only formally summarized the commonly used Kostia-kov, Philip, Green-Ampt Such as classical infiltration equation, and gives several new equations. These equations are really simple, intuitive, clear physical concepts, easy to use and so on.