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The main type of soil in the polar regions is ahumic soil. [15] This includes the cold desert soil. This soil consists of sand that is frozen. These soils tend to not have an abundant amount of vegetation but bacteria has been found. The other type of soil is organic soil. This type of soil is found in areas that are warmer and have more moisture.
Polygonal soil patterns, typical of the Arctic Tundra. Polygons can form either in permafrost areas (as ice wedges) or in areas that are affected by seasonal frost.The rocks that make up these raised stone rings typically decrease in size with depth.
A soil scientist examining horizons within a soil profile. Soil science is the study of soil as a natural resource on the surface of the Earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils; and these properties in relation to the use and management of soils.
Polar Geography is a quarterly peer-reviewed academic journal covering research on the physical and human aspects of the Polar regions of Earth. It is published by Taylor & Francis and was established in 1977. From 1980 to 1994 it was known as Polar Geography and Geology.
Soil morphology is the branch of soil science dedicated to the technical description of soil, [1] particularly physical properties including texture, color, structure, and consistence. Morphological evaluations of soil are typically performed in the field on a soil profile containing multiple horizons .
The definition of the term in geology and paleontology is slightly different from its use in soil science. In geology and paleontology, a paleosol is a former soil preserved by burial underneath either sediments (alluvium or loess) or volcanic deposits (lava flows or volcanic ash), which in the case of older deposits have lithified into rock.
The overlying soil layer is gradually lifted up by frost heaving. [7] In cross-section, the ice cores of a palsa show layering, which is caused by the successive winter freezing intervals. The pressing out of water from the pores is not crucial, however, since the boggy soil is water-saturated and thus always provides enough water for ice core ...
Earth's critical zone. Illustration by Critical Zone Observatories (CZO) based on a figure in Chorover et al. 2007.. Earth's critical zone is the “heterogeneous, near surface environment in which complex interactions involving rock, soil, water, air, and living organisms regulate the natural habitat and determine the availability of life-sustaining resources” (National Research Council ...