暴雨查算手册

R上/R总比例系数ψ值选用表表(十一)分类频率(%)植被情况备注不好一般好5~1≤0.80≤0.75≤0.701.ψ为地表径流占总径流的比值R上/R下;2.根据设计流域的植被和某种频率的暴雨选用此表。1~0.10.80~0.850.75~0.800.70~0.750.1~0.010.85~0.900.80~0.850.75~0.80P.M.F>0.90>0.85>0.80R上/R总比例系数ψ值选用表表(十一)分类频率(%)植被情况备注不好一般好5~1≤0.80≤0.75≤0.701.ψ为地表径流占总径流的比值R上/R下;2.根据设计流域的植被和某种频率的暴雨选用此表。1~0.10.80~0.850.75~0.800.70~0.750.1~0.010.85~0.900.80~0.850.75~0.80P.M.F>0.90>0.85>0.80R上/R总比例系数ψ值选用表表(十一)分类频率(%)植被情况备注不好一般好5~1≤0.80≤0.75≤0.701.ψ为地表径流占总径流的比值R上/R下;2.根据设计流域的植被和某种频率的暴雨选用此表。1~0.10.80~0.850.75~0.800.70~0.750.1~0.010.85~0.900.80~0.850.75~0.80P.M.F>0.90>0.85>0.80R上/R总比例系数ψ值选用表表(十一)分类频率(%)植被情况备注不好一般好5~1≤0.80≤0.75≤0.701.ψ为地表径流占总径流的比值R上/R下;2.根据设计流域的植被和某种频率的暴雨选用此表。1~0.10.80~0.850.75~0.800.70~0.750.1~0.010.85~0.900.80~0.850.75~0.80P.M.F>0.90>0.85>0.80