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Gelisol Suborders

Gelisol Suborders. Histels - Gelisols with large quantities of organic matter Turbels - Gelisols with evidence of extensive mixing by frost action Orthels - Common gelisols that don’t have high quantities of OM or extensive mixing from frost action. Histosol Suborders.

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Gelisol Suborders

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  1. Gelisol Suborders Histels- Gelisols with large quantities of organic matter Turbels- Gelisols with evidence of extensive mixing by frost action Orthels- Common gelisols that don’t have high quantities of OM or extensive mixing from frost action

  2. Histosol Suborders ~Folists- Histosols that aren’t saturated with water for long periods of time during the year. ~Wassists- Histosols that are submerged for more than 21 hours a day ~Fibrists- Histosols that are primarily made up of slightly decomposed OM called PEAT ~Saprists- Histosols made up of highly decomposed OM called MUCK ~Hemists- Histosols made up of moderately decomposed OM

  3. Spodosol Suborders • Aquods- Poorly drained Spodosols with a water table at or near the surface for much of the year • Gelods- Spodosols of very cold climates (mean annual soil temperature less than 0 degrees C) • Cryods- Spodosols of cold climates • Humods- Well-drained Spodosols that contain relatively large quantities of OM • Orthods- Common Spodosols that don’t fit in any other suborders

  4. Andisol Suborders • Aquands- Andisols with a water table at or near the surface for much of the year • Gelands- Andisols of very cold climates (mean annual soil temperature less than or equal to 0 degrees C) • Cryands- Andisols of cold climates • Torrands- Andisols of very dry climates • Xerands- Temperate Andisols with very dry summers and moist winters • Vitrands- Relatively young Andisols that are coarse- textured and dominated by glass • Ustands- Andisols of semi-arid and sub-humid climates • Udands- Andisols of humid climates

  5. Themes in the First 4 Main Orders • Orth- doesn’t fit in any other suborder • Aqu- water table at or near the surface • Gel- very cold climates less than or equal to 0 degrees C • Cry- cold climates

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