This article is about the soil type. For the locality, see Trumao, Chile.
Trumao
Profile
A-(AB)-BA-2C[note 1]
Key process
weathering
Parent material
primary tephra, or tephra redeposited as alluvium or by wind
Climate
humid[1]
Trumao is the name of a soil of the Andosol order found in southern and central Chile. Trumaos are formed from young volcanic ash, by volcanic ash redeposited by aeolian processes or by volcanic ash mobilized as alluvium.[1][2] Trumaos are characterized by containing the following minerals: allophane, imogolite plus a series of paracrystalline and non-crystalline clays.[3] These soils have high porosity and low bulk density.[2] A more dry and a more humid variety of trumaos exists. The dry variety is known simply as trumao while the humid variety is known as trumao húmedo.[1]
In terms of latitude trumaos can be found in the Andes from 33° S to 43° S, in the Central Valley from 38° S to 43° S and in the eastern slopes of the Chilean Coast Range from 39° S to 43° S.[1]
^ abcdeSchlatter, Juan; Grez, Renato; Gerding, Víctor (2003). Manual para el reconocimiento de suelos (in Spanish). Valdivia: Universidad Austral de Chile. pp. 94–95. ISBN 956-7105-25-1.
^ abVeblen, Thomas T. (2007). "Temperate Forest of the Southern Andean Region". In Veblen, Thomas T.; Young, Kenneth R.; Orme, Anthony R. (eds.). Physical Geography of South America. Oxford University Press. pp. 219. ISBN 978-0-19-531341-3.
^Sanhueza, C.; Palma, J.; Valenzuela, P.; Araneda, O.; Calderón, K. (September 2011). "Evaluación del comportamiento geotécnico de suelos volcánicos chilenos para su uso como material de filtro en la depuración de aguas residuales domésticas". Revista de la Construcción (in Spanish). 10 (2). Escuela de Construcción Civil, Pontificia Universidad Católica de Chile: 66–81. doi:10.4067/S0718-915X2011000200007. S2CID 111123900. Retrieved 25 June 2015.
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Trumao is the name of a soil of the Andosol order found in southern and central Chile. Trumaos are formed from young volcanic ash, by volcanic ash redeposited...
Province, southern Chile. It lies upstream of La Barra and downstream of Trumao. Forestry has long been the driving economic activity in the hamlet. Chile:...
main agricultural soils are; red clay soil (rojo arcillosos, ultisols), trumao and ñadi. Some red clay soils are planted with Eucalyptus globulus. In the...
allophanes and imogolites. Pedogenesis Pedology (soil study) Soil classification Trumao Andosols by Olafur Arnalds in Encyclopedia of Soil Science, pp. 39–26. IUSS...
settlements lie along the river: Puerto Nuevo at the source, Río Bueno, Trumao, Llancacura, and La Barra at the outflow in the ocean. The original Huilliche...
before Llanquihue Lake. Quilacahuín, between the Rahue River and the sea. Trumao to the north of Quilacahuín, on the South bank of the Bueno River. Lipihue...
since they far outnumbered his own. Beauchef and his small army arrived at Trumao where they were aided by local Mapuche-Huilliche who ferried them over Bueno...
from the original on 2013-02-19. Retrieved 2013-01-12. "Armada de Chile | Trumao, vapor". Archived from the original on 2013-02-19. Retrieved 2013-01-12...
of diminished rainfall. Soils around the lower course of the river are trumaos and red clay soils. Aerial view of Cruces River at its confluence with...
of between 350 and 450 m, on deep rich soils derived from volcanic ash (trumaos), where productivity is above average (Frank, 1998; Salas, 2001). Further...
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