超根层黄土中水分运移的数值模拟研究

The study on low of water movement in ultra root layers of loess

根据灌溉条件下的黄土中水分运移野外试验成果及分析,建立相应的一维水分运移数学模型,通过六点差分格式的数值解法对所推求的理论模型进行了验证,检验结果表明,所建立的数学模型能反映土壤水分分布的基本特征。

According to the field test＇s achievement and analyze about water movement in loess under irrigation condition, it set up corresponding one-dimensional water movement mathematics model. The theoretical relationship is checked out by the experimental results of the one-dimension water movement and using six arrays of difference to solute this model. The results show that the model can reflect the basic characters of soil water distribution within the soil profile.