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在洪水季节，为使黄河更好地排洪输沙，在黄河三角洲实行人工放淤．通过放淤，使河水分流，减少河水冲垮河堤的危险性，也减少了河床的泥沙淤积量．放淤区新沉淀的泥沙压制了盐碱，并可能把盐碱地改造成为良田．
During the flood season, in order to make the Yellow River better discharge and sediment discharge, artificial siltation will be implemented in the Yellow River Delta. By removing silt, diversion of the river and reducing the danger of the river breaking through the embankment also reduce the amount of sediment in the riverbed. Sediment sediment newly deposited sediment suppressed the salt and alkali may be transformed into fertile land.