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昌江发源于安徽省祈门县北部,流经祈门、景德镇、鄱阳县南部,在鄱阳县饶公渡与乐安河汇合后流入鄱阳湖。河长253公里,流域面积6293平方公里。昌江洪水频繁。据道光版《浮梁县志》从公元812年(唐·元和7年)至公元1780年(清·乾隆45年)不全的记载,有关昌江洪水的记述达30处。解放后,各水文站的实测资料,更准确地反映了昌江洪水频繁的特点。据渡峰坑站1950年以来36年的实测水文资料统计,超过警戒水位(28.50米)的年最高水位发生22次,洪水频率为二年一遇,超过警戒水位1.5米以上,造成灾害的年最高水位发生11次,洪水频率为五年一遇。
Changjiang River originates from the northern part of Qimen County, Anhui Province. It flows through Chihmen, Jingdezhen and the south of Poyang County, and flows into Poyang Lake after it merges with Le An River in Poyang County. 253 kilometers long river basin area of 6293 square kilometers. Changjiang floods frequently. According to the account of the incomplete version of the light version of “Fuliang County” dated from 812 (Tang Yuan and 7 years) to 1780 AD (45 years of Qing Emperor Qianlong’s reign), there are 30 flood records in the Changjiang River. After the liberation, the measured data of hydrological stations more accurately reflected the frequent flood features in Changjiang River. According to the measured hydrological data of 36 years since 1950, the annual maximum water level exceeding the warning water level (28.50 meters) occurred 22 times. The flood frequency was once in two years and exceeded the warning water level by more than 1.5 meters, causing the disaster year The highest water level occurred 11 times, the flood frequency is once every five years.