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曲流

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曲流的生命週期

kuk1(又稱河曲河套蜿蜒型河流)是指河流彎曲。曲流多見於下游。河道的外彎水流較快,河岸受侵蝕;內彎則水流較慢,沉積物累積形成新的河岸。河道因此越來越彎,河谷亦越來越寬。當曲流過彎而脫離主河道,該段曲流就會變成牛軛湖。曲流是堆積和侵蝕作用一起發生的。

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