已经变成了浅湖的泛滥河道偶尔还会因洪水而再度溢满，风景如画的美丽湖泊于是成为了鱼类的天下。
Overflow channels that have become shallow lakes, periodically recharged with water and fish by the floods, pattern the landscape.
为雨洪控制扩宽加深河道，以扩大泛滥区和增加行洪能力。
Widen and deepen the channel for expanding floodplain and increasing flood capacity for flood control.
二者的界面是相同的，均为河道砂体底部的冲刷侵蚀面或者是暴露过泛滥平原泥岩、根土岩等。
And the boundary of them has the same lithologic character: the ravinement surface of river course or exposure mudstone of flooding plain and root clay.
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