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运用线模型理论，对黄土低山丘陵区的浸润锋运动进行了综合研究，得到了各因素对浸润好的正规方程解，可预测不同立地条件下的浸润锋；找出了影响浸润锋运动的主导因素，它们依次是降雨历时、降雨强度、工地利用方式与坡度的交互作用；通过分析揭示了各因素对浸润锋的影响程度，浸润锋的下行深度与降雨历时和降雨强度呈正相关，工地利用方式不同，浸润锋的下行深度也不一样，杨林土壤浸润锋的下行速率最快，其次是农田地和草地，最后是裸地和油松林土壤。这些都为黄土丘陵区的综合治理提供了良好的理论基础．
By using the theory of linear model, the infiltration front movement in the hilly area of the loess is comprehensively studied. The solution to the normal equation of various factors is obtained, and the infiltration front under different site conditions can be predicted. The dominant factors are rainfall duration, rainfall intensity and the interaction between site utilization and slope. The influence of various factors on the infiltration front is revealed. The descending depth of the infiltration front is positively correlated with rainfall duration and rainfall intensity. Different ways, the infiltration front depth is not the same, Yang Lin soil infiltration front down the fastest rate, followed by farmland and grassland, and finally the bare land and Pinus tabulaeformis soil. All of these provide a good theoretical basis for the comprehensive management of loess hilly areas.