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(一) 长江,中国第一大河,千百年来,既泽及华夏,又危及华夏。每至汛期,荆江一带人民,头枕悬河,惶惶不安。 据历史记载,从公元前185年到公元1991年的2196年中,长江中下游共发生大小水灾214次。1788年,宜昌洪水流量86000立方米每秒,沙市以上荆江大坝溃决22处,荆州城进水,淹地不计其数,造成大量人口死亡。1860年和1870年,连续两年特大洪水,冲开荆江南岸堤防,两湖平原一片汪洋。1911年至1949年发生较大水灾7次。1931年大洪
(A) The Yangtze River, China’s largest river, thousands of years, both Ze and China, but also endanger China. Every flood season, Jingjiang area people, headrest hanging river, panic. According to historical records, in 2196 BC from 185 BC to 1991, a total of 214 floods occurred in the middle and lower reaches of the Yangtze River. In 1788, Yichang flood traffic 86,000 cubic meters per second, Shashi above Jingjiang dam crashed 22, Jingzhou City into the water, flooded with countless, resulting in a large number of deaths. In 1860 and 1870, two consecutive years of major floods, washed away the embankment on the south bank of Jingjiang, two lakes plain is vast. Between 1911 and 1949, seven major floods occurred. 1931 Dahong