Spatial variation of hydraulic conductivity and its effects on groundwater flow

研究了地表水导电性的空间变异及其对地下水流的影响。综述了近年来空间变异模型的研究进展，讨论了包括水导率空间变异模型在内的问题。通过数值实验确定了导水率非均质性的影响。非均质性是影响地下水运动的重要因素。通过沙盒试验确定了管道在土壤中的作用。土壤中的管道在入渗过程中起着重要的作用。

Spatial variation of hydraulic conductivity and its effects on groundwater flow was investigated.The recent studies on modellings of spatial variation were reviewed, and then the problems including modellings of spatial variation of hydraulic conductivity were discussed.The effect of heterogeneity of hydraulic conductivity was determined by means of numerical experiments. Heterogeneity is an important factor for the movement of groundwater.The effects of pipe in the soil were determined by the sandbox expeiment. The pipe in the soil has an important role in the infiltration processes.