水土保持对清涧河流域洪水径流的影响

Impact of soil and water conservation measures on flood runoff in Qingjianhe River Basin

采用时间序列对比分析方法,分析了黄土高原清涧河流域水土保持对流域暴雨洪水过程及径流量的影响,结果表明了水土保持使该流域产洪次数减少、地表径流模数和径流系数减小、流域产流起始时间滞后,径流持续时间缩短,洪峰流量降低.

Impacts of soil and water conservation measures on storm flood and runoff in Qingjianhe River Basin of the Loess Plateau are studied with time series comparison method, of which the results indicate that the flood occurrences, the surface runoff modulus, the flood peak discharge and the runoff coefficient can be decreased by the soil and water conservation measures along with the lagged starting time of the runoff yielding and shortened flood duration.