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水土流失对河道和水利设施的危害已给我国经济建设造成巨大损失.黄河是世界上泥沙量最多的河流。由于泥沙太多,使得下游河床不断淤积抬高,河道极不稳定,经常泛滥改道,给中国人民带来巨大灾难。目前,黄河下游决堤成灾的威胁依然存在.由此可见,搞好水土保持,减少入河泥沙,从根本上解决黄河泥沙问题,已成为中国人民长期的艰巨任务.
The harm of water and soil erosion to the watercourse and water conservancy facilities has caused huge losses to our country’s economic construction.The Yellow River is the river with the largest amount of sediment in the world. Due to too much sediment, the siltation and upheaval of the downstream riverbed continued, and the river channel was extremely unstable. Flooding and diversion were frequently carried out, causing great disasters to the Chinese people. At present, the threat to the succession of the embankment in the lower reaches of the Yellow River remains. Thus, it has become a long-term and arduous task for the Chinese people to do a good job of soil and water conservation, reduce sediment into the river and fundamentally solve the problem of sediment in the Yellow River.