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44 bytes added ,  09:03, November 14, 2007
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Refers to the frequency and duration of periods of saturation or partial saturation during [[soil]] formation, as opposed to altered drainage, which is commonly the result of artificial drainage or irrigation but may be caused by the sudden deepening of channels or the blocking of drainage outlets.
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'''Drainage Class''' refers to the frequency and duration of periods of saturation or partial saturation during [[soil]] formation, as opposed to altered drainage, which is commonly the result of artificial drainage or irrigation but may be caused by the sudden deepening of channels or the blocking of drainage outlets.
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==References==
 
==References==
 
[http://www.fsis.usda.gov/Help/A-Z_Index/index.asp USDA Index]
 
[http://www.fsis.usda.gov/Help/A-Z_Index/index.asp USDA Index]
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[[Category:Geology]]
nsTeam1RO, nsTeam1RW, nsTeam1_talkRO, nsTeam1_talkRW
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