Anonymous
Anonymous asked in Science & MathematicsEarth Sciences & Geology · 3 weeks ago

What does it mean for a stream to become disconnected from its flood plain?

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  • Anonymous
    3 weeks ago

    "While most people view a river or stream only as the place where there is regularly flowing water, the reality is that the river and floodplain are one integrated system that have evolved over time to convey water and sediment downstream, with the floodplain serving to both store water and to slowly release it back into the main channel of the river as the flood passes, to ensure that the natural system downstream isn’t overwhelmed."

    http://nrcsolutions.org/floodplains/

    Damming or diking a river interferes with that natural back-and-forth flow, both in terms of flood control (all that water has to go somewhere, the problem moves to a different place) and how it changes the ecosystem there that was based on the wet soil and occasional flooding.

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