Andisol formation in a holocene beach ridge plain under the humid tropical climate of the Atlantic Coast of Costa Rica

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dc.creatorNieuwenhuyse, A.
dc.creatorJongmans, A.G.
dc.creatorBreemen, N. van
dc.creatorCATIE – Centro Agronómico Tropical de Investigación y Enseñanza, Turrialba, Costa Rica. Atlantic Zone Programme
dc.creatorAgricultural University Wageningen, Wageningen (Países Bajos)
dc.creatorMinisterio de Agricultura y Ganadería, San José (Costa Rica) [MAG]
dc.date2014-10-17T06:05:58Z
dc.date2014-10-17T06:05:58Z
dc.date1993
dc.date.accessioned2026-06-09T02:09:51Z
dc.description24 páginas
dc.descriptionContiene 4 figuras y 5 tablas.
dc.description23 referencias en las páginas 441-442
dc.descriptionSoil formation has been studied in relation with time in a 5000-year old chronosequence on volcaniclastic beach ridges of the perhumid tropical Atlantic coast of Costa Rica. All soils are under tropical rainforest. Drainage conditions change by subsidence from excessively drained in the two youngest soils to imperfectly drained in the two oldest soils. Parent material is rather homogeneous andesitic sand with a volcanic glass component of less than 10%. It has been found that under these conditions Andisols form within 2000 years. Imperfect drainage caused mottling and accumulation of iron-coatings, as well as the formation of a thin O-horizon in the oldest profiles. Sand content of the soils decreases regularly with soil age, while the amount of fine material increases concurrently. The increase in fine material and the accumulation of organic matter cause an increase of CEC and andic properties, and a decrease in bulk density and pH with soil age. Depth of biological influence increases with soil age, but soil faunal activity is hampered in the oldest three profiles, probably by imperfect drainage. Due to the extreme leaching conditions, the sum of exchangeable cations is less than 2 cmol + kg- 1 in the B-horizons of the older soils, notwithstanding the presence of a considerable amount of weatherable primary minerals.
dc.formatapplication/pdf
dc.identifier357414
dc.identifierhttps://repositorio.catie.ac.cr/handle/11554/402
dc.identifier:
dc.identifierTurrialba (Costa Rica)
dc.identifier.urihttp://hdl.handle.net/123456789/2995
dc.publisherCATIE, Turrialba (Costa Rica). Atlantic Zone Programme Agricultural University Wageningen, Wageningen (Países Bajos) Ministerio de Agricultura y Ganadería, San José (Costa Rica)
dc.subjectgénesis del suelo
dc.subjectdrenaje
dc.subjectcapacidad de cambio iónico
dc.subjectcationes
dc.subjectZona Atlántica
dc.subjectelemento primario del suelo
dc.subjectsuelos del holoceno
dc.subjectandisoles
dc.subjectsuelo volcánico
dc.subjectclima tropical
dc.subjectsedimentación
dc.subjectvolcanic soils
dc.subjecttropical climate
dc.subjectsedimentation
dc.subjectCosta Rica
dc.subjectsoil genesis
dc.subjectdrainage
dc.subjection exchange capacity
dc.subjectcations
dc.subjectsoil parent materials
dc.titleAndisol formation in a holocene beach ridge plain under the humid tropical climate of the Atlantic Coast of Costa Rica
dc.titleProgramme Paper - Atlantic Zone Programme (CATIE-AUW-MAG) no. 15
dc.typeInforme

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