北宋是黄河治理史上的重要时期。一方面,黄河灾害空前加重,一百六十八年中见于史籍的决溢年分达六十余年,河道不断滚动,变化剧烈;另一方面,由于宋京开封位于黄河下游,治河与否直接关系着统治集团 The Northern Song Dynasty is an important period in the history of the Yellow River. On the one hand, the Yellow River disaster unprecedented increase, one hundred and sixty-eight years found in the historical records of the overflow of more than 60 years, the continuous rolling river, dramatic changes; the other hand, as Songjing Kaifeng is located in the lower reaches of the Yellow River, No directly related to the ruling group