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.
研究提取流域的基本地形特征如坡度和坡向，提取流域水系，划分了小流域。
The basic terrain characters of drainage area such as slope, aspect, and channel system, the demarcation of the small watershed was investigated.
COD以河流流量、河流中固体悬浮颗粒物（SS）量、以及河流流域面积、坡度、人口、土地利用类型作为输入变量指标；
The river discharge, suspended solid (SS), drainage area, slope, population and the type of land use were considered as the indexes of the input invariable for COD.
COD以河流流量、河流中固体悬浮颗粒物（SS）量、以及河流流域面积、坡度、人口、土地利用类型作为输入变量指标；
The river discharge, suspended solid (SS), drainage area, slope, population and the type of land use were considered as the indexes of the input invariable for COD.
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