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引黄灌溉平均每年为黄河下游地区增产粮食49.1×108kg;山东省引黄灌区粮食产量年增长速率为6.5%。黄河断流,若以两年一次的洛口—利津河段同时断流统计,则每年至少损失粮食17.21×108kg;平均每断流一天,直接经济损失达3930×104元。因此,研究、缓解黄河断流,保证、发展引黄灌溉,是黄河下游农业持续发展的关键。
Yellow River irrigation average annual yield of 49.1 × 108kg for the lower reaches of the Yellow River; annual growth rate of grain output in the Yellow River Irrigation Area of Shandong Province was 6.5%. The Yellow River cut-off, if the two-time Lokou - Lijin River at the same time cut-off statistics, the annual loss of food at least 17.21 × 108kg; average flow every day, the direct economic loss of 3930 × 104 yuan. Therefore, it is the key to the sustainable development of the agriculture in the lower Yellow River to study and relieve the Yellow River cut-off and ensure and develop the irrigation to the Yellow River.