近年来应用非饱和土壤水运动原理,并通过数值计算来定量分析研究包气带中的水分动动愈来愈受到水文、水文地质、土壤物理、水资源、农田水利等学科科学工作者的重视。在定量分析研究非饱和土壤水的运动时,都必需首先求得水分运动参数D(θ)、K(θ)值及水分特征关系曲线。目前对D(θ)、K(θ)值的室内测定方法已较成熟,实验中的重复性 In recent years, the principle of unsaturated soil water movement has been applied, and the numerical analysis to quantitatively study the water movement in the aeration zone has been paid more and more attention by the scientists such as hydrology, hydrogeology, soil physics, water resources and farmland irrigation. . In the quantitative analysis of unsaturated soil water movement, we must first determine the water movement parameters D (θ), K (θ) value and water characteristics curve. At present, the methods of indoor determination of D (θ) and K (θ) values ​​are relatively mature, and the repeatability