Soil Orders Quiz :\

Alfisols

Found in: Oklahoma (OK)
•topsoil is gray brown or brown
•formed under temperate deciduous forests
•high level of nutrients in topsoil

Andisols

Found in: northwestern US
•volcanic glass content
•strongly weathered soil

Aridosols

Found in: Nevada (NV), New Mexico (NM)
•little leaching
•form in arid regions
•not much organic matter to replace nutrients

Entisols

Found in: Oklahoma (OK) western area
•sandy
•no evidence of horizon development

Gelisols

Found in: Alaska (AK)
•have permafrost
•organic layer has evidence of frost burn or seasonal thaw layer

Hostosols

Found in: Louisiana (LA), Florida (FL), northern Minnesota (MN), Wisconsin (WI), and Michigan (MI)
•found in bogs, peat
•predominately organic
•formed in waterlogged areas

Inceptisols

Found in: New England and Appalachian Mts.
•small amounts of organic matter
•weathering is minimal
•earliest soil horizon development

Mollisol

Found in: eastern Oklahoma (OK)
•found in temperate grasslands
•high levels of humus
•fertile w/ thick, dark brown topsoil

Oxisols

Found in: Hawaii (HI)
•found in hot, wet, tropical regions
•nearly featureless

Spodosols

Found in: upper New England, upper Michigan (MI), and South Carolina (SC)
•form under coniferous trees
•not suited for agriculture

Ultisols

Found in: Georgia (GA), Alabama (AL), South Carolina (SC)
•lack of litter
•low in nutrients
•found in hot, wet areas

Vertisols

Found in: Mississippi (MS) river basin around Louisiana (LA)
•high clay content
•deep, wide cracks
•shrink when dry, swell when wet

Soil Orders Quiz :\

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