黄河内蒙古段凌期槽蓄增量变化与影响因素

分析了黄河内蒙古河段凌期槽蓄增量的变化情况与影响因素,结果表明:刘家峡水库运用以来,内蒙古河段凌期槽蓄增量呈增大趋势,尤其是龙羊峡水库运用以来,槽蓄增量进一步增大；槽蓄增量的增加主要集中在巴彦高勒-头道拐河段；凌期径流量增大是槽蓄增量增大的主要原因,但龙羊峡水库运用以来槽蓄增量的增大还与河道淤积、过流能力减小有关；凌峰主要形成于巴彦高勒-头道拐之间,刘家峡水库运用以来槽蓄增量的增大对凌汛洪水影响明显,头道拐站凌汛洪水洪量和洪峰均不同程度增大；槽蓄增量的影响因素主要包括气温条件、径流条件及河道边界条件.

The Incremental Variation of Channel Storage and Its Influencing Factors of Inner-Mongolia Reach of the Yellow River in Ice Flood Season

The incremental variation of channel storage and its influencing factors of Inner-Mongolia reach of the Yellow River in freeze-up period were analyzed.The results show the channel storage increment of Inner-Mongolia in freeze-up period increased in trend after the commencement of Liujiaxia Reservior and Longyangxia Reservior's operation.The main part of the channel storage increment occurs in the reach from Bayangaole to Toudaoguai.The discharge increase of the incoming flow is the main reason for the augme...