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 Wind
erosion is a serious problem in many parts of the world. It is worse
in arid and semiarid regions. Areas most susceptible to wind erosion
on
agricultural land include much of North Africa and the Near East;
parts of southern central, and eastern Asia; the Siberian Plains;
Australia; northwest China; southern South America; and North
America. |
  Wind
erosion is a major problem on about 75 million acres of land in the
United States. About 5 million acres are moderately to severely
damaged each year. Wind erosion physically removes from the field
the most fertile portion of the soil. Some soil from damaged land  enters
suspension and becomes  part
of the atmospheric dust load. Dust obscures visibility and pollutes
the air and water, causes automobile accidents, fouls machinery, and
imperils animal and human health. |
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