非饱和土壤水分运动的相似性分析及标定应用

根据土壤物理学中的标定理论，结合非饱和土壤水分运动基本方程，建立了水流运动相似的力学准则，对各非饱和土壤水分运动参数，变量及下渗过程进行了标定，通过最小二乘法，迭代求解了下渗过程的最优标定因子，并对结果进行了分析讨论。

Similarity Analysis of the Unsaturated Soil Water Movement and Its Scaling Application

Based on the scaling theory in soil physics and in close connection with the basic equations of unsaturated soil water movement,the similarity mechanical criteria of hydraulic flow movement are established;and each unsaturated soil moisture movement parameters,variables and infiltration are scaled in this paper.Also,the optimal scale factors in the infiltration process are derived through the least square method and iteration method; and their results are analysed and discussed.