According to the theoretical and practic al simulation of isothermal and non - isot hermal movement of water and salt ， and bo undary with mulch ， this paper introduces the status of studying advances in simul ation and coupled modeling on moisture m ovement ， heat transfer ， and salt transportin soils ， especially the soils with stra w mulch . based on summarizing above ， the f eatures of concerned models and desirable development are discussed briefly 分别从等温和非等温水盐动态模拟以及覆盖边界层三个方面，以秸秆覆盖条件下土壤水、热、盐耦合运动规律模拟研究为重点，介绍了50年代以来土壤水热盐数学模拟的研究成果，并简要论述了有关模型的特点及今后的发展方向。
