本文分析了流域面积、流域坡长和流域坡度、流域河长和河道坡度的量算方法及各因子对设计洪峰流量的影响。
This paper analyzes all main factors to influence flood peak, such as, the area of drainage basin, slope and streams, etc, and respectively calculating approach are introduced.
对于森林流域和灌木流域，其多年平均径流系数主要受多年平均降水量、多年平均蒸散量和平均坡度共同影响；
For forest watershed and shrub watershed, the annual mean runoff coefficient was affected by mean annual precipitation, mean annual evapotranspiration and mean slope grade.
根据SCS模型敏感参数cn，从坡度参数变化角度分析了不同分辨率的DEM对流域径流量影响。
Through analysis of the sensitive parameter CN of the SCS model, the sensitivity of runoff modeling to DEM resolution is described from the perspective of slope change.
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