土壤水分特征曲线模型比较分析

Comparison of Soil Water Retention Curve Model

在分析土壤水分特征曲线经验模型中特征参数的基础上,选取5种不同质地土壤,利用张力计测定了土壤水分特征曲线,根据实验资料确定了土壤水分特征曲线经验模型中参数。采用回归分析方法建立了参数与土壤物理特性间的函数关系,为采用土壤颗粒组成等土壤物理特性确定土壤水分特征曲线提供了指导。

Based on the analysis of model parameters of soil water retention curve, the parameters were determined by five types of soil water retention curve data. A fitted relationship between the parameters and the soil texture was established, with which the model parameters of soil water retention curves can be predicted by the soil physical characteristic.