what are the difference between flash floods and soil erosion
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what are the difference between flash floods and soil erosion
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Answer:
Soil erosion signifies removal of soil by some process. It could be winds; it could be flood waters; it could be some sort of volcanic cataclysm that transforms the landscape in such a way as gathering wide acerages of “uniform” soils with greatly varying terrains, here bare, there covered with transported soil and volcanic debris into deep concentrations. So: erosion might, or might not, result from flooding. If you get a huge rain, and the Colorado River running thru the Grand Canyon rises up to flood stage, since the river is in a deep canyon, very little soil erosion will take place (one extreme;) if one of the SE Asian rivers floods, like the Yangtze, then upland soils can be carried down to lower elevations where, with stream gradients waning, lots of new soil can be deposited over a huge area. Repeated flooding of the Nile near its delta was the key component to the thriving of the Egyptian culture for a very long time, that allowed quite a sophisticated system to grow and prosper. Soil erosion can be massive in overall volume, either by the movement of seds/floods in huge rivers, or by big windstorms over dry country with lots of unconsolidated stuff near the surface.