【摘要】 根据水均衡和盐分运动的基本原理,考虑到在实际情况下不动水体的存在,提出了一种简单的区域水盐动态预测预报模型。在此模型中,并不去求解非饱和水分运动问题,而用蒸发、入渗等量决定非饱和带的盐分运动,为田间水盐管理提供了一种较好的方法和手段。通过与两个野外实测资料对比,证明本模型是简单有效的。更多还原

【Abstract】 A simple prediction model for regional ground water and soll water concentration, in which the immobile water is taken into account, is proposed based on water movement and solute transport. In the model the unsaturated water movement equation does not need to be solved and the soil water concentration can be evaluated by evaporation and infiltration. Compared with the data of two field experiments, the model is effective and can be used in field water and salinity management.更多还原