多少年来,提起黄河的治理,人们总是把眼光盯在黄河的上游和中游。每年要花大量的人力、物力防洪固沙,修堤筑坝。实践证明,这种做法是正确的,也是十分有意义的,但是,如今的各种情况发生了变化,我们的眼光就不仅要盯着上游、中游,而且还要盯着下游、河口。 历史上,黄河入海的流路是不稳定的。利津县四段以下,对黄河入海流路不加任何控制,任其摆动,漫流入海。由于黄河含沙量大,黄河河口一直处于淤积—— In the past few years, people have always looked at the upper reaches of the Yellow River and the middle reaches of the Yellow River. Every year to spend a lot of manpower, material and flood control sand, repair dike dam. Practice has proved that this approach is correct and very meaningful. However, all kinds of changes have taken place now. Our eyes should not only be on the upper reaches and the middle reaches, but also on the lower reaches and estuaries. Historically, the Yellow River flow into the sea is unstable. Four sections of Lijin County, the Yellow River into the sea without any control over the flow path, let it swing, diffuse into the sea. Due to the large amount of sediment in the Yellow River, the Yellow River estuary has been in sedimentation -