四十年的治黄实践使黄河发生了巨大变化,也加深了人们对黄河的认识。作者认为,黄河不可能变清,也不需要变清;下游防洪是治黄的长期任务;下游河道的泥沙淤积问题必须而且可以采用多种途径和措施去解决,不需要改道。 Forty years of practice of governing the Yellow Sea have undergone tremendous changes in the Yellow River and deepened people’s understanding of the Yellow River. The author believes that it is impossible for the Yellow River to become clear and does not need to be cleared up. Flood control in the lower reaches is a long-term task of treating the Yellow River. Sedimentation problems in downstream rivers must be solved in various ways and measures without any diversion.