Gelisol

Gelisols are an order in USDA soil taxonomy. They are soils of very cold climates which are defined as containing permafrost within two meters of the soil...

material starting within 40 cm from the soil surface. In Soil Taxonomy, Gelisols key out before Histosols, and in WRB, Histosols key out before Cryosols...

have an A horizon on top of bedrock. They are 18% of soils worldwide. Gelisol – permafrost soils with permafrost within two metres of the surface or...

since the Silurian; however, unlike other soil orders (oxisol, ultisol, gelisol, etc) they do not have value as indicators of climate. Orthents may, in...

by ground ice. Tillites and other glacigenic deposits are indicative of Gelisols. These soils form under polar desert, tundra, and taiga vegetation. Includes...

north where the tundra dominates. Soils are mainly turbels (a type of gelisol). The active layer tends to be less than one metre deep, except near rivers...

quite recently been deposited, e.g. on recent river alluvium. In the US, Gelisols occur only in parts of Alaska; they are characterized by having permafrost...

glaciated regions. The dominant soil orders are podsols and, further north, gelisols. Subarctic regions are often characterized by taiga forest vegetation as...

cold climate. The slow rate of decomposition of organic material means gelisols (permafrost soils) are very important as a sink for carbon dioxide. This...

calcium and potassium. Owing to their extreme climatic requirements, gelisol fossils are confined to the few periods of extensive continental glaciation...

In gelisols (permafrost soils), cryoturbation (frost churning) refers to the mixing of materials from various horizons of the soil down to the bedrock...

not only in glacial features dating from this period but also in fossil Gelisols from as far north as the Hunter River basin. The Permian to Triassic in...

the Yukon River Basin. These soils include Entisols, Gelisols, Inceptisols, Inceptisols/Gelisols, Mollisols, Spodosols, and Rough Mountainous Land. Permafrost...

sensor - Fresno scraper - Frost heaving - Frost line - Fuller's earth Gelisols - Geosmin - Geotechnical investigation - Gleysol - Gravitational erosion...

Ultisols, Alfisols, Mollisols, Spodosols, Aridisols, Entisols, Inceptisols, Gelisols, Histosols, Vertisols and Andisols). Many Precambrian soils, however, when...

nitrogen that would be released under different future climate scenarios from Gelisols, soils impacted by permafrost. Through collaborative research projects...