人民治黄50年来成就辉煌,但由于黄河的洪水和泥沙尚未得到有效控制,下游河道仍在继续淤积抬高,特别是80年代中期以来,进入下游的水量偏少,河槽淤积加重,产生萎缩,排洪能力降低,漫滩机遇增加,水患威胁增大,下游防洪形势十分严峻。 Since the mid-1980s, the amount of water entering the lower reaches has been somewhat less, and siltation of the river channels has worsened, causing atrophy. However, due to the floods and sedimentation of the Yellow River have not yet been effectively controlled, the downstream rivers continue to be silted up and lifted. , Lower flood discharge capacity, increased opportunities for floodplains, increased threat to floods and flood control in the downstream areas are very serious.