Histosol

In both the

Cryosols. Therefore, organic permafrost

Organic soil material has an organic carbon content (by

acidic and very deficient in major plant nutrients, especially the raised bogs

Histosols are known by various other names in other countries, such as

muck. In the Australian Soil Classification, Histosols are called Organosols.^[4]

Histosols form whenever organic matter forms at a more rapid rate than it is destroyed. This occurs because of restricted

Gelisols, store large quantities of organic carbon. If accumulation continues for a long enough period, coal

Most Histosols occur in Canada, Scandinavia, the West Siberian Plain, Sumatra, Borneo and New Guinea. Smaller areas are found in other parts of Europe, the Russian Far East (chiefly in Khabarovsk Krai and Amur Oblast), Florida and other areas of permanent swampland. Fossil Histosols are known from the earliest extensive land vegetation in the Devonian.

Histosols are generally very difficult to cultivate because of the poor drainage and often low chemical

powder and eroding under the influence of drying winds. A tendency towards shrinkage and compaction is also evident with crops

Like

Gelisols, Histosols have greatly restricted use for civil engineering purposes because heavy structures

In USDA soil taxonomy, Histosols are subdivided into:

Folists – Histosols that are not saturated with water for long periods of time during the year.
Fibrists – Histosols that are primarily made up of only slightly decomposed organic materials, often called peat.
Hemists – Histosols that are primarily made up of moderately decomposed organic materials.
Saprists – Histosols that are primarily made up of highly decomposed organic materials, often called muck.
Wassists - Histosols that have a field observable water table 2 cm or more above the soil surface for more than 21 hours of each day in all years.

References

^ IUSS Working Group WRB (2022). "World Reference Base for Soil Resources, fourth edition" (PDF). International Union of Soil Sciences, Vienna.
^ Soil Survey Staff (2022). "Keys to Soil Taxonomy 13th edition" (PDF). USDA Natural Resources Conservation Service.
^ "Hydric Soils of Florida". Wetland Evaluation and Delineation Program. Florida Department of Environmental Protection.
^ "Australian Soil Classification – Organosols". CSIRO. Retrieved 8 February 2016.

"Histosols". USDA-NRCS. Archived from the original on 2006-05-09. Retrieved 2006-05-14.
"Histosols". University of Idaho. Archived from the original on 2006-09-01. Retrieved 2006-05-14.

v t e Soil classification
World Reference Base for Soil Resources (1998–)	Acrisols Alisols Andosols Anthrosols Arenosols Calcisols Cambisols Chernozem Cryosols Durisols Ferralsols Fluvisols Gleysols Gypsisols Histosol Kastanozems Leptosols Lixisols Luvisols Nitisols Phaeozems Planosols Plinthosols Podzols Regosols Retisols Solonchaks Solonetz Stagnosol Technosols Umbrisols Vertisols
USDA soil taxonomy	Alfisols Andisols Aridisols Entisols Gelisols Histosols Inceptisols Mollisols Oxisols Spodosols Ultisols Vertisols
Other systems	FAO soil classification (1974–1998) Unified Soil Classification System AASHTO Soil Classification System Référentiel pédologique (French classification system) Canadian system of soil classification Australian Soil Classification Polish Soil Classification 1938 USDA soil taxonomy List of U.S. state soils List of vineyard soil types
Non-systematic soil types	Sand Silt Clay Loam Topsoil Subsoil Soil crust Claypan Hardpan Gypcrust Caliche Parent material Pedosphere Laimosphere Rhizosphere Bulk soil Alkali soil Bay mud Blue goo Brickearth Brown earth Calcareous grassland Dark earth Dry quicksand Duplex soil Eluvium Expansive clay Fill dirt Fuller's earth Hydrophobic soil Loess Lunar soil Martian soil Mud Muskeg Paleosol Peat Prime farmland Serpentine soil Spodic soil Stagnogley Subaqueous soil Takir Terra preta Terra rossa Tropical peat Yedoma
Types of soil