通过降水对径流的贡献率进行快速流和慢速流的划分，屋檐洞地下河系统的快速流与慢速流比例接近2∶3。
Contribution percentages about precipitation to runoff were calculated to divide rapid flow and slow flow in the model, the proportion of them of Wuyandong subterranean stream system is 2 to 3.
全市的水资源总量、地下水、河川径流量呈减少趋势，与降水的变化具有明显的一致性。
Water resources total quantity, underground water and runoff of river assumes the reduced tendency, has the obvious uniformity with the precipitation change.
用SCS降水-径流模型对陕北渭北多个典型小型集水区降雨径流量进行了分析与计算。
SCS model is applied to calculating runoff amount of several typical small watersheds of North of Shaanxi and Weibei .
其月份分配为，降水量大的月份，穿透降水、树干径流与林冠截留量相对较大，截留率较小；
To the month with large quantities of precipitation, the quantities of throughfall, stemflow and interception quantities are relatively large, but the interception rate is low.
降水与冰川融水径流量增加百分率相比，增加幅度较小。
But, as compared to the increased percentage of runoff from glacier meltwater, the increase amplitude is smaller.
建立模拟降雨装置，研究降雨条件下功能性材料与聚合物对降水土壤渗透性与地表径流污染负荷的影响。
The researches on decreasing the pollution loads in rainfall runoff with PAM and functional materials of zeolite to improve the soil was accomplished using the simulated set.
建立模拟降雨装置，研究降雨条件下功能性材料与聚合物对降水土壤渗透性与地表径流污染负荷的影响。
The researches on decreasing the pollution loads in rainfall runoff with PAM and functional materials of zeolite to improve the soil was accomplished using the simulated set.
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