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...
6 KB (648 words) - 06:15, 16 August 2023
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...
18 KB (2,126 words) - 11:32, 20 July 2023
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...
6 KB (663 words) - 17:50, 13 March 2024
Paleosol (section Gelisol (permafrost soil))
by ground ice. Tillites and other glacigenic deposits are indicative of Gelisols. These soils form under polar desert, tundra, and taiga vegetation. Includes...
25 KB (3,208 words) - 20:49, 13 June 2024
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...
86 KB (8,308 words) - 06:42, 27 August 2024
since the Silurian; however, unlike other soil orders (oxisol, ultisol, gelisol, etc) they do not have value as indicators of climate. Orthents may, in...
5 KB (473 words) - 19:15, 3 January 2024
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...
9 KB (1,253 words) - 18:37, 7 August 2024
cold climate. The slow rate of decomposition of organic material means gelisols (permafrost soils) are very important as a sink for carbon dioxide. This...
8 KB (937 words) - 12:32, 15 April 2024
glaciated regions. The dominant soil orders are podsols and, further north, gelisols. Subarctic regions are often characterized by taiga forest vegetation as...
8 KB (907 words) - 00:56, 1 September 2024
calcium and potassium. Owing to their extreme climatic requirements, gelisol fossils are confined to the few periods of extensive continental glaciation...
7 KB (951 words) - 05:37, 6 July 2023
In gelisols (permafrost soils), cryoturbation (frost churning) refers to the mixing of materials from various horizons of the soil down to the bedrock...
2 KB (250 words) - 18:14, 25 January 2024
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...
27 KB (3,580 words) - 08:46, 14 July 2024
the Yukon River Basin. These soils include Entisols, Gelisols, Inceptisols, Inceptisols/Gelisols, Mollisols, Spodosols, and Rough Mountainous Land. Permafrost...
14 KB (1,688 words) - 09:37, 15 May 2024
nitrogen that would be released under different future climate scenarios from Gelisols, soils impacted by permafrost. Through collaborative research projects...
14 KB (1,326 words) - 02:12, 28 November 2023
sensor - Fresno scraper - Frost heaving - Frost line - Fuller's earth Gelisols - Geosmin - Geotechnical investigation - Gleysol - Gravitational erosion...
8 KB (730 words) - 13:04, 28 August 2024
Ultisols, Alfisols, Mollisols, Spodosols, Aridisols, Entisols, Inceptisols, Gelisols, Histosols, Vertisols and Andisols). Many Precambrian soils, however, when...
23 KB (3,344 words) - 13:07, 15 April 2024