Search results
Results from the WOW.Com Content Network
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.
Soils consisting primarily of peat are known as histosols. Peat forms in wetland conditions, where flooding or stagnant water obstructs the flow of oxygen from the atmosphere, slowing the rate of decomposition. [4] Peat properties such as organic matter content and saturated hydraulic conductivity can exhibit high spatial heterogeneity. [5]
Organic soils (Polish: Gleby organiczne; WRB: Histosols; ST: Histosols) That order groups all soils built of organic material (>12–18% organic carbon), mainly accumulated in wet conditions. - Type 10.1 "Peat fibric soils" ( Polish : Gleby torfowe fibrowe ; WRB: Fibric or Fibric Hemic or Limnic Fibric Histosol; ST: Typic or Hemic or Limnic ...
Muck farming on drained swamps is an important part of agriculture in New York, Ohio, Illinois, Indiana, Michigan, Wisconsin, and Florida, where mostly vegetables are grown.
Some Histosols have been drained, especially to permit cultivation. In the US, Mollisols occur mostly on the Great Plains, and in some areas of the west. There is a considerable variety of Mollisols, including soils very closely resembling the Chernozem ("black earth") of eastern Europe (parts of Russia, Ukraine and neighboring regions), and ...
In the WRB, the Histosols key out before the Cryosols. Organic permafrost soils are therefore Gelisols (Histels) in the soil taxonomy and Histosols (Cryic Histosols) in the WRB. Structurally, Gelisols may have a B horizon and more commonly have an A horizon and/or O horizon resting on the permafrost.
The Food and Agriculture Organization of the United Nations (FAO) developed a supra-national classification, which offers useful generalizations about pedogenesis in relation to the interactions between the main soil-forming factors.
USDA soil taxonomy (ST) developed by the United States Department of Agriculture and the National Cooperative Soil Survey provides an elaborate classification of soil types according to several parameters (most commonly their properties) and in several levels: Order, Suborder, Great Group, Subgroup, Family, and Series.