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1·After the peak runoff rate, sediment concentration decreases and variation amplitude reduces.

峰值径流流量后，含沙量降低，表现为变化幅度小的低含沙量特征。

2·Wetland design can moderate peak flow rate and volume of runoff discharge and sediment deposition during precipitation events.

湿地项目可以缓和雨洪峰值流率及降水过程中的径流排放量和沉淀量。

3·The result shows that the peak of pollutant concentration is ahead of or synchronous with that of runoff, and heavy pollution occurs in initial period of storm runoff.

结果表明：污染物浓度的峰值一般提前或同步于径流量的峰值，初期径流污染较重；

4·The parameters of the NAM hydrological model are researched on affecting the depth of runoff volume, flood peak flux and flood peak appearance time.

利用灰色系统关联分析方法来研究NAM模型参数对模型模拟径流深、洪峰流量和峰现时间的影响。

5·The results show that during storm period, non - point pollution concentration and momentary toss are co - occurence with the peak value of runoff, their relations are very closely.

研究结果表明：暴雨期内，非点源污染物浓度及瞬时流失量与径流峰值几乎同步出现，它们之间存在着非常密切的关系。

6·The designed flood peak flow in storm sewer is usually calculated by adopting a constant average runoff coefficient at present in China, simple as it is, it's not reasonable enough.

目前，我国采用单一地表的平均径流系数计算雨水管渠的设计洪峰流量，这虽然使计算简化，但不尽合理。

7·The effect of the parameters of the NAM hydrological model on the depth of runoff volume, flood peak discharge and flood peak appearance time was researched by GRA (grey relation analysis).

利用灰色系统关联分析方法来研究NAM模型参数对模型模拟径流深、洪峰流量和峰现时间的影响。

8·The modeling result shows that land use structure and pattern change results in the increase of maxi- mum flood peak and flood discharge and the decreases of runoff concentration time.

模拟结果表明，土地利用结构与格局的变化，使得暴雨洪水的最大洪峰流量和洪量加大，汇流时间变短。

9·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.

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。