Pedogenetic factors and processes of alfisols in Argentina

The relationships existing between some specific properties of Alfisols Order soils and soil forming factors and geographic distribution were studied. Selected properties were: pH, organic carbon, CEC, clay contents, clay relations of eluvial and iluvial horizons, texture and thickness of horizons a...

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Autores principales: Ferrer, J.A., Pereyra, F.X., Villegas, D.
Formato: JOUR
Materias:
Alfisols
Genesis
Pedogenetic processes
Soil forming factors
Alfisol
parent material
pedogenesis
Argentina
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00044822_v56_n3_p304_Ferrer
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00044822_v56_n3_p304_Ferrer
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spelling todo:paper_00044822_v56_n3_p304_Ferrer2023-10-03T13:57:37Z Pedogenetic factors and processes of alfisols in Argentina Ferrer, J.A. Pereyra, F.X. Villegas, D. Alfisols Genesis Pedogenetic processes Soil forming factors Alfisol parent material pedogenesis Argentina The relationships existing between some specific properties of Alfisols Order soils and soil forming factors and geographic distribution were studied. Selected properties were: pH, organic carbon, CEC, clay contents, clay relations of eluvial and iluvial horizons, texture and thickness of horizons and pedogenetic development of soil profiles. Argentine Alfisols show great geographic variability and heterogeneity, with Aqualfs predominating above other Suborders. Alfisols rank fourth in areal extent in Argentina, covering more than 225.000 km2. Sixty one percent of Alfisols lie within the Chaco plain morphostructural region, with 21% in the Pampean plain (21%) and 12% in the Subandean ranges. The parent materials are variable, although silty and sandy loam, fluvial and reworked acolian deposits dominate. They formed mainly on flat or gently sloping surfaces (alluvial plains, terraces, shallow depressions and lakes). Prairie vegetation prevails over forest. Moisture regimes are aquic. udic and ustic, with a few areas that are xeric. Temperature regimes are mainly thermic and hyperthermic. The most common succession of horizons is A-E-Bt-BC-C, and diagnostic horizons are natric, argillic, kandic. albic and ocric. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v56_n3_p304_Ferrer
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Alfisols
Genesis
Pedogenetic processes
Soil forming factors
Alfisol
parent material
pedogenesis
Argentina
spellingShingle Alfisols
Genesis
Pedogenetic processes
Soil forming factors
Alfisol
parent material
pedogenesis
Argentina
Ferrer, J.A.
Pereyra, F.X.
Villegas, D.
Pedogenetic factors and processes of alfisols in Argentina
topic_facet Alfisols
Genesis
Pedogenetic processes
Soil forming factors
Alfisol
parent material
pedogenesis
Argentina
description The relationships existing between some specific properties of Alfisols Order soils and soil forming factors and geographic distribution were studied. Selected properties were: pH, organic carbon, CEC, clay contents, clay relations of eluvial and iluvial horizons, texture and thickness of horizons and pedogenetic development of soil profiles. Argentine Alfisols show great geographic variability and heterogeneity, with Aqualfs predominating above other Suborders. Alfisols rank fourth in areal extent in Argentina, covering more than 225.000 km2. Sixty one percent of Alfisols lie within the Chaco plain morphostructural region, with 21% in the Pampean plain (21%) and 12% in the Subandean ranges. The parent materials are variable, although silty and sandy loam, fluvial and reworked acolian deposits dominate. They formed mainly on flat or gently sloping surfaces (alluvial plains, terraces, shallow depressions and lakes). Prairie vegetation prevails over forest. Moisture regimes are aquic. udic and ustic, with a few areas that are xeric. Temperature regimes are mainly thermic and hyperthermic. The most common succession of horizons is A-E-Bt-BC-C, and diagnostic horizons are natric, argillic, kandic. albic and ocric.
format JOUR
author Ferrer, J.A.
Pereyra, F.X.
Villegas, D.
author_facet Ferrer, J.A.
Pereyra, F.X.
Villegas, D.
author_sort Ferrer, J.A.
title Pedogenetic factors and processes of alfisols in Argentina
title_short Pedogenetic factors and processes of alfisols in Argentina
title_full Pedogenetic factors and processes of alfisols in Argentina
title_fullStr Pedogenetic factors and processes of alfisols in Argentina
title_full_unstemmed Pedogenetic factors and processes of alfisols in Argentina
title_sort pedogenetic factors and processes of alfisols in argentina
url http://hdl.handle.net/20.500.12110/paper_00044822_v56_n3_p304_Ferrer
work_keys_str_mv AT ferrerja pedogeneticfactorsandprocessesofalfisolsinargentina
AT pereyrafx pedogeneticfactorsandprocessesofalfisolsinargentina
AT villegasd pedogeneticfactorsandprocessesofalfisolsinargentina
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