降雨历时越长，侵蚀量及侵蚀强度增大。
If it is long for rainfall to last, the amount and intensity of erosion will increase.
不同坡度下，随着降雨历时的增加，土壤结皮的影响在降低。
On each gradient, the effects of soil crust are decreasing with rainfall time.
随着降雨历时的延长，降雨径流中主要污染物浓度均逐渐下降并趋于稳定。
The concentrations of pollutants in runoff descend with the time and tend to be stable.
垂直侵蚀随降雨强度、降雨历时的增加而增加，不同土壤的侵蚀临界降雨量不同；
The extent of vertical erosion increases with precipitation, rainfall intensity and soil infiltration rates, and different soil has different critical rainfall amount.
除验证了一些基本规律外，还对降雨历时、降雨强度的分段进行了研究深入探讨。
Some basic laws were certified. Different periods in duration and intensity of rainfall were studied.
并且各污染物浓度均随降雨历时呈减少趋势，后趋于平缓，可采用弃流部分初期雨水后进行收集。
There was a decreasing trend in each pollutant concentration with rainfall duration and finally tends to flat. So we collect the rainwater after abandoning part of the initial flow of rainwater.
找出了影响浸润锋运动的主导因素，它们依次是降雨历时、降雨强度、工地利用方式与坡度的交互作用；
The leading factors to damp-surface motion and influence value of everyfactor to damp-surface motion were found out.
研究发现，在植被影响径流过程作用中，混交林延长降雨历时作用最为明显，其次为阔叶林、灌丛、楠竹林；
Research shows, during the process of the impact of vegetation to runoff, that mixed forest has the most obvious extension of the rain forest, followed by broadleaved forest, shrubs, bamboo forest;
管流出现的时间、管流历时与降雨强度、降雨历时、土壤前期水分含量和土管所处的土壤剖面位置等因素有关。
The appearing and lasting time of pipe flow is related to the rainfall intensity, duration of rainfall, the previous water content of soil and the location of soil pipe in soil section.
暴雨在短历时内产生较强的降雨，而且暴雨的间隔时间尺度越短平均雨强就越大。
Storm brings strong rainfall intensity in short duration, moreover, the shorter duration the average rainfall intensity is stronger.
阐述了降雨量、前期土壤水分含量和下渗历时与水分下渗深度的关系。
The relations between rainfalls, contents of soil water before rainfall, time of infiltration and depth of infiltration were described.
降雨格局3为雨量分散、雨强小而历时很长的一类降雨事件的集合；
Pattern 3 is the aggregation of those with low intensities and long durations.
在自然条件下，降雨集中、强度大、历时短、暴雨中心靠近流域出口，洪峰流量就会比较大，反之则小，但在人类活动影响下则不一定产生这样的结果。
Runoff yield and flood peak are larger when the rain center is near the outlet of watershed under the natural environment, but it is not necessarily under the human activities environment.
通过农田降雨径流监测试验，并对上海市历时23年的逐日降雨资料进行汇总与系统分析，确定黄浦江流域农田地表降雨径流特征。
Through monitoring farmland runoff and analyzing daily rainfall for 23 years in Shanghai, this paper provided the characteristics of farmland rainfall runoff in Huangpu River Basin.
对强降雨、历时短、产流率大的降雨过程，林地对产流削减作用明显小于对弱降雨、历时长、产流率小的降雨过程。
Forest will reduce more runoff yield in strong and short term rainfall processes than in small and long ones.
对强降雨、历时短、产流率大的降雨过程，林地对产流削减作用明显小于对弱降雨、历时长、产流率小的降雨过程。
Forest will reduce more runoff yield in strong and short term rainfall processes than in small and long ones.
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