2012年7月21日至7月22日,大清河水系拒马河流域普降暴雨,同时在拒马河上发生了自1964年来最大的洪水,重点对拒马河支流偏道子沟的降水成因、特性、重现期、洪水情况及河道行洪能力进行分析,为防涝减灾提供参考。 From July 21 to July 22, 2012, the Daqing River water system was a heavy rainstorm in the Juma River basin. At the same time, the largest flood occurred since 1964 on the Juma River, focusing on the cause of precipitation in the Biadizigou, a tributary of the Juma River, Characteristics, return period, flood conditions and flood discharge capacity of river courses, providing reference for flood prevention and disaster mitigation.