在第一讲中我们介绍了土壤水分运动的基本微分方程。方程式中包含有水力传导度k(θ)(或k(h)),扩散度D(θ)和容水度C(h)等几个土壤水分运动参数。为了对土壤水分运动进行定量分析,必须要有这些参数资料。因此,土壤水分运动参数是研究土壤水分运动规律时需要首先解决的问题。以下我们分别介绍一下这些参数的测定方法。 In the first lecture we introduced the basic differential equations of soil moisture movement. The equation includes several parameters, such as hydraulic conductivity k (θ) (or k (h)), diffusivity D (θ), and water content C (h). In order to quantitatively analyze soil moisture movement, these parameters must be available. Therefore, the soil moisture movement parameter is the first problem to be solved when studying the law of soil water movement. Below we introduce the measurement method of these parameters separately.