1975年8月,河南省的中、南地区发生了历史上罕见的特大暴雨洪水,造成两座大型水库、两座中型水库和56座小型水库垮坝,是建国后最大的一场洪水灾害,给河南的部分地区造成了毁灭性的灾害。2005年是河南“75·8”特大洪水发生30周年,为汲取“75·8”经验教训,认真总结、研究洪水规 In August 1975, a rare historical flood storm in central and southern Henan Province caused two large reservoirs, two medium-sized reservoirs and 56 small reservoirs to collapse. It was the largest flood disaster after the founding of the People’s Republic of China. It has caused devastating disasters in parts of Henan. 2005 is the thirtieth anniversary of the extraordinary flood of “75 · 8” in Henan Province. In order to draw on the experience and lessons of “75 · 8”, the flood regulation