FOR 208 Soil Orders for FINAL
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Name the 12 soil orders.
Organic, wetland soils
Differentiated based upon degree of decomposition of organic matter
"Formed under acid forests"
Acid litter causes eluviation of many compounds
Formed from volcanic ash, young soils
Very old, thick sola, highly weathered
Weathered B horizon
Have expanding clays
Self-churning soils due to expansion and contraction of clays
Arid, can be highly developed
Due to limited leaching, accumulation of various salts
Brown soils formed under deciduous forest, low base saturation
Thin, brown A horizon, must have an argillic horizon and/or a kandic horizon
Dark soils formed under prairies, high base saturation
Dark A horizon, B horizon can have a variety of endopedons
Brown soils formed under deciduous forest, high base saturation
Thin, brown colored A horizon, must have argillic horizon
Older than Entisols
Weak B horizon
Young, thin sola, relatively underdeveloped soils
Thin A horizon over parent material
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