利用模拟降雨装置，研究了演替恢复初期不同植被覆盖以及不同处理下坡面降雨的产流过程和入渗率。
In this study, simulating rainfall was applied to study the runoff process and infiltration rate of soil under the cover of vegetation at the preliminary succession stages.
基于多孔介质中的渗流过程，定义了一个定量评价油藏渗透率水平非均质性的新参数———非均质系数。
A parameter for quantitatively describing the lateral heterogeneity of reservoir permeability — heterogeneity factor is defined based on the percolation flow through porous media.
体积流过量试验结果显示，当注入150倍孔隙体积注入水时，因粘土膨胀，渗透率下降达28%。
The result from the testing by volume flow overrate demonstrates that when injected water as much as 150 fold of pore volume is used, permeability is reduced as much as 28% due to clay swelling.
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