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通过在黄河调水调沙期前后对近海水域盐度进行连续监测,结果表明,黄河调水调沙极大地改变了河口盐度及其分布,入海冲淡水影响范围急剧增加,显著降低区域盐度极值,并由河口口门处向东南向逐渐扩散;但同时,调水调沙对近海盐度的影响主要集中在表层,中层、底层影响效果减弱。调水调沙结束后,近海盐度及其分布逐渐恢复至原有水平。
Through the continuous monitoring of the salinity in the offshore waters around the Yellow River water transfer and sedimentation, the results show that the salinity and its distribution in the estuary have been greatly changed by the water and sediment adjustment in the Yellow River. The influence scope of freshwater flushing into the sea has dramatically increased and the salinity And it gradually spreads towards the southeast from the mouth of the mouth of the river. At the same time, the effects of water and sediment adjustment on the salinity of the offshore are mainly concentrated in the surface layer, and the effect of the middle layer and the bottom layer is weakened. After the water and sediment adjustment, the coastal salinity and its distribution gradually returned to its original level.