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前言黄河口自1976年5月改道走清水沟入海以来,行河八年,淤积延伸总长度达23.5公里,平均每年3公里,河口水下沙咀已凸出平均海岸线16公里。由于黄河水量少,含沙量大,每年挟带约11.79亿吨泥沙进入下游河道,河床不断淤积抬高,河口逐年向海中延伸,受洪水和风暴潮等因素的影响,入海口则在几十公里范围内频繁摆动改道,平均十余年,则需大改道一次,对河口三角洲资源的开发利用,非常不利。
Preface The Yellow River estuary diverted from the Gushushou to the sea in May 1976. After eight years of running along the river, the total depositional extension reached 23.5 kilometers, an average of 3 kilometers per year. The estuary of the mouth of the Yellow River has projected an average of 16 kilometers of coastline. Due to the small quantity of the Yellow River and the large amount of sediment, it entrains about 1.179 billion tons of sediment into the lower reaches of the river every year. The river bed keeps silting up and rising. The estuary extends into the sea year by year. Affected by floods and storm surges, Frequent swing within 10 kilometers of diversions, on average, more than ten years, the need for a major diversion, the development and utilization of the estuarine resources, very unfavorable.