University of Idaho College of Agricultural and Life Sciences Plant, Soil & Entomological Sciences Soil & Land Resources
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Histosols

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example 2

marly, euic, mesic
Limnic Haplosaprist
southern Michigan
(Edwards series)

These organic soil is composed of highly decomposed muck (Oa horizon) overlying a horizon of undecomposed peat (Oi). The soil contains marl (Lma), a layer of soft calcareous clay, at 76 cm. Ground water levels tend to fluctuate seasonally within the profile, resulting in periodic decomposition of organic materials. When these soils are drained for cultivation, aerobic oxidation of the organic materials can occur rapidly in warm climates. Some of these soils are are cropped; however, the majority are in native vegetation consisting of brush and trees. Common tree species are quaking aspen, American elm, silver maple, and northern whitecedar. This soil is similar to those of the Edwards series. For more information on these soils,
click here.

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Examples:
1. Histosol landscape
North Carolina
2. Limnic Haplosaprist
southern Michigan
3. Haplosaprist landscape
northern Idaho
4. Typic Haplosaprist
northern Idaho
5. volume change
in drained organic material
6. subsidence in drained Histosol
Everglades, Florida

7. use of Histosol for fuel
Scotland

8. Lithic Torrifolist
southern Idaho
If you have any comments, suggestions, or questions about the 12 Soil Orders web site,
please contact
Dr. Paul McDaniel  at the Soil Science Division,
University of Idaho, Moscow, ID 83844-2339.