将Ｍｏｌｄｒｕｐ等提出的模拟水流和溶质运移的运动平均斜率模型和运动浓度斜率模型联合，模拟了重粘土在入渗和蒸发条件下的水盐动态并与特征－有限差分数值模型的计算结果进行了比较。在模拟过程中新模型显示出更加高效的优点，这对粘性土壤地区盐渍化趋势的长期预报具有重要的实际意义。 Combined with the model of moving average slope and the gradient of kinematic concentration of simulated water flow and solute transport proposed by Moldrup et al., The water and salt dynamics of heavy clay under infiltration and evaporation conditions were simulated and compared with the results of the characteristic-finite difference numerical model A The new model shows a more efficient advantage in the simulation process, which has important practical significance for the long-term prediction of the salinization trend in the cohesive soils.