Is the erosion of soil, which occurs worldwide, is normally a rapid process?

Question

*HELP! <3 = )

Answer 1

Normally, the reason that soil is present is because it is a depositioal environment, meaning there is little erosion to start. Why would the soil form if there was a lot of erosion? So, no, normally soil erosion is very small and slow. Human activites like excavation speed this up dramatically.

Answer 2

It depends. Erosion is caused by a force working on the soil. So areas with more frequent or higher intensity forces will have greater levels of erosion at faster rates than areas that don't. For instance, soil erosion in areas with high levels of precipitaton is much faster than in areas with little or no precipitation. Basically, if you live in Washington state you'll have more soil erosion than you would if you lived in the desert Southwest (say, Arizona) in the same amount of time. Also, areas with running water (coastal regions, stream beds, etc.) experience higher levels of soil erosion than areas with out it. So do areas with frequent high winds. So it's pretty much all about the weather. :)

Answer 3

Not normally. However, flood run-off and earthquakes, as well as strong wind can cause rapid erosion. When this occurs above a town, the town may be covered in mud. This happened on the Califoria coast during the winter of 2004 and buried about a third of a town. Four people were buried in the mud.

Answer 4

It is one of the more rapid erosion processes, (compared to rock)
the wind and water can erode soil very quickly, days, weeks, or months...

Answer 5

To fight erosion of soil we can use the water in an other way.
Following the same levels curves to infiltrat the water all along the canal and keep the solids material on the lands.
see our expériments to do it:

http://video.google.fr/videoplay?docid=-6428334944196136906&hl=fr