【摘要】 土壤非饱和带确定性数值模型在农业、环境、工程等领域有着广泛的应用。本文结合土壤非饱和带的单重介质理论、双重介质理论和多相流理论,以及这些理论在实际应用中存在的一些问题,介绍了国外最近十几年来土壤非饱和带确定性数值模型取得的最新进展,并且这些模型中的大部分已经进入了商业应用阶段。更多还原

【Abstract】 Deterministic numerical models of the soil unsaturated zone can be widely applied to the fields of agronomy, environment,engineering etc.With the combination of the theories of single-porosity,dual-porosity and multiphase flow in the unsaturated zone with some problems these theories encountered in practical uses, the paper gives an account of the latest foreign advances in the deterministic numerical models of the soil unsaturated zone in recent decades,most of which have been in commercial applications.更多还原