2007-01-20 23:44:43 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Geography
Weathering due to either wind, or moving water (ie a sudden downpour) will strip the land of soil. This is particularly true if the soil is sandy. Once the soil is removed, what is left is either impermeable clays or rock. These will not retain water as soil does, and the result is immediate run-off or evaporation. Now you have the conditions necessary for drought to occur.
2007-01-21 00:49:10 · answer #1 · answered by Kilty 5 · 0⤊ 1⤋
I'm not sure that it does. Surely the causation is the other way round, drought leads to soil erosion. The mechanics of this are, in very simple terms, that prolonged drought causes the soil to dry out. If the soil is fine and sandy, it is then blown away by the wind. If it is a more heavy, say clay soil, a sudden downburst of rain can wash it away.
2007-01-21 07:52:38 · answer #2 · answered by rdenig_male 7 · 0⤊ 0⤋
Deforestation has caused valuable water sources to dry up in many areas of the world. The water that previously had been stored in the trees and soil is now running straight off the land. Farmers can no longer rely on a steady supply of water for their crops, and water rationing has even been enforced in some of the rainiest regions on Earth!
2007-01-21 14:11:26 · answer #3 · answered by Country Hick 5 · 0⤊ 0⤋
I believe that you have the question turned around. That is, it is drought that causes soil erosion.
2007-01-21 09:01:47 · answer #4 · answered by ElOsoBravo 6 · 0⤊ 0⤋