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1996年汛期黄河下游枯水中沙,是1986年以来的第11个枯水年份,7～10月下游河道共淤积泥沙6亿 t 左右,其中7月份淤积泥沙4.27亿 t,占相应来沙量的81%。分析了1996年汛期下游河道及河口段的冲淤情况在时间、空间上的分布,综述了1986年以来的河道冲淤特点及河道萎缩情况,对下游洪水位进行了计算分析。
In the flood season in 1996, the middle and low reaches of the Yellow River were the 11th dry year since 1986. During the period from July to October, a total of 600 million tons of sediment were deposited in the lower reaches of the Yellow River, of which 412 million tons were deposited in July, 81% of the amount. The distribution of erosion and deposition in the downstream and estuarine sections of the flood season in 1996 was analyzed in time and space. The characteristics of scouring and silting of the river and the atrophy of the river since 1986 were summarized, and the floodplain in the downstream was calculated and analyzed.