Histosols Organic Soils Inceptisols Young Soils Some change or alteration of parent material with weak soil horizon development beginning and cambic 1 Oxisols Tropical Forest Soils Oxic horizon hydrated oxides of Fe or Al highly weathered tropical Mollisols Prairie Soils Mollic epipedon dark surface and high base saturation 2 Spododols Conifer Forest Soils Ultisols Low Nutrients Argillic clay accumulation and low base saturation 3 Vertisols Swelling Clay Soils Inverted turned Rocky Land Shifting Sands Not capable of growing plants Not capable of growing plants 4 Ice glacier Not capable of growing plants LEVELS OF CLASSIFICATION 1 Order Mollisols 2 Suborder Aquolls 3 Great Group Argiaquolls 4 Subgroup Cumulic Argiaquolls 5 Family Fine silty smectitic mesic 6 Series Mudcity The higher the level of classification the less specific the information Drummer Silt Loam Fine silty mixed superactive mesic Typic Endoaquolls Family Fine silty mixed superactive mesic Subgroup Typic Endoaquolls Great Group Endoaquolls Suborder Aquolls Order Mollisols http ortho ftw nrcs usda gov cgibin osd osdname cgi 5 6
View Full Document
Unlocking...