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决口河是指洪水冲决堤岸后形成的新河流,随着农业生产的发展和防洪抗灾水平的提高,我国目前这类成因的河流数量不多。现存的主要分布在长江中游地区的两湖平原上,其中历史最悠久的是东荆河。
Bukou Kou River is a new river formed after the flood burst off the embankment. With the development of agricultural production and the improvement of flood control and disaster resistance, there are not many rivers of this kind in our country at present. The existing mainly in the middle reaches of the Yangtze River in the lakes and plains, of which the oldest is the East Jinghe.