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潼关位于黄河、渭河、北洛河汇流区开阔段进入峡谷河道的卡口处,潼关高程[指潼关(六)断面1000m~3/s 水位,下同]起着局部侵蚀基面的作用,直接影响渭河下游和小北干流河道的防汛安全。1986年10月龙羊峡水库投入运用以来,受龙、刘水库调节的影响,加之黄河来水偏枯,三门峡水库汛期入库水量和沙
Tongguan is located in the Yellow River, Weihe, Beiluohe convergence section of the open channel into the canyon bayonet Department, Tongguan elevation [refers to the Tongguan (VI) section of 1000m ~ 3 / s water level, the same below] plays the role of local erosion of the base, direct Affect the Flood Control Safety of the Lower Weihe River and the Small North Main Stream. In October 1986, since the Longyangxia Reservoir was put into operation, influenced by the regulation of the Long and Liu reservoirs and combined with the water runoff of the Yellow River, the inflow of sediment and sand in the Sanmenxia Reservoir during the flood season