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What are Andosols used for?

What are Andosols used for?

Andosols are a Reference Soil Group of the World Reference Base for Soil Resources (WRB). They are closely related to other types of soils such as Vitrosols, Vitrandosols, Vitrons and Pumice Soils that are used in different soil classification systems.

What is Andosol soil?

Andosols are highly porous, dark-coloured soils developed from parent material of volcanic origin, such as volcanic ash, tuff, and pumice. They are found from Iceland to Indonesia, but they typically occur in wooded highland areas of the continental lands bordering the Pacific Ocean.

Where are Andosols found?

Andosols occur in volcanic regions all over the earth. Important concentrations are found around the Pacific rim: on the west coast of South America, in Central America, the Rocky Mountains, Alaska, Japan, the Philippine Archipelago, Indonesia, Papua New Guinea and New Zealand.

What is the meaning of Soil Taxonomy?

Soil taxonomy is the system of soil classification used for mapping and classifying soils by the National Cooperative Soil Survey in the United States; it is used in many other countries as well. It employs a unique mnemonic system based on Greek, Latin, or other root words for assigning names to taxonomic classes.

What is volcanic soil?

Volcanic soils form by weathering of volcanogenic materials. This soil group shares unique physical and chemical properties largely attributable to the formation of poorly crystalline and noncrystalline minerals, and the accumulation of organic matter.

Where is brown earth most commonly found?

Brown Earth soils, which is classified as a zonal soil, developed as a result of the Cool Temperate Oceanic climate such as the one found in Ireland. This is found between 30o and 55o North of the Equator. Brown Earth soils are the most common soil type found in Ireland.

Is brown soil acidic?

Brown earth soils are mainly found in the Midlands and the eastern counties. At higher levels, where the climate is colder and wetter, a thin layer of plant debris started the process of peat soil. This soil is wet and acidic by nature and is usually identified as raised or blanket bogs, with turf as the byproduct.

Where does the Andosol get its name from?

Andosols are typical dark soils of volcanic landscapes [the name is derived from the Japanese words ‘an’ (dark) and ‘do’ (soil)] that develop in glass-rich volcanic ejecta in almost any climate (WRB, 2014). I. Kögel-Knabner, W. Amelung, in Treatise on Geochemistry (Second Edition), 2014

What kind of soil is an Andosol made of?

Andosols are usually defined as soils containing high proportions of glass and amorphous colloidal materials, including allophane, imogolite and ferrihydrite. In the USDA soil taxonomy, Andosols are known as Andisols.

Where can you find Andosols in a volcano?

Andosols (from Japanese an meaning dark and do soil, a synonym of kuroboku) are soils found in volcanic areas formed in volcanic tephra. In some cases can Andosols also be found outside active volcanic areas.

Why are Andisols called Andosols in the WRB?

In the World Reference Base for Soil Resources (WRB), Andisols are known as Andosols. Because they are generally quite young, Andisols typically are very fertile except in cases where phosphorus is easily fixed (this sometimes occurs in the tropics).