探讨了不同计算时段对黄河下游灌溉引沙量计算值的影响，认为用日含沙量计算，更接近实际引沙量，并能减少一些高含沙洪水期间不引灌的影响，但计算结果偏大。由此看出，灌溉引走了水，但引沙量并不是很大，而且加重了下游河道淤积。因此应提倡节水型灌溉，最大限度地减少引黄水量。 The effects of different calculation periods on the calculated value of irrigation and sediment yield in the lower Yellow River are discussed. It is considered that the daily sediment concentration is closer to the actual sediment discharge, and the effect of no dredging during some high silt floods can be reduced. However, Too big. This shows that irrigation led to the water, but the amount of sediment is not very large, and aggravated the downstream river siltation. Therefore, water-saving irrigation should be promoted to minimize the water diversion from the Yellow River.