For the contaminant plume examined in this synthetic example study the spatial second moments defining the spread of the contaminant plume around its centroid increase with the enlargement of the variance of hydraulic conductivity distribution, while the
For the contaminant plume examined in this synthetic example study the spatial second moments defining the spread of the contaminant plume around its centroid increase with the enlargement of the variance of hydraulic conductivity distribution, while the
实例研究表明，污染物在含水层中运移过程中污染羽的展布范围（二阶矩）随着渗透系数空间变异方差的增大而扩大，而污染羽在空间上的质心位置（一阶矩）基本不受方差的影响，仅取决于渗透系数随机场的均值大小。