Soil genesis in Rio de las Vueltas valley, Santa Cruz province, Patagonia

Factors of soils formation, parent material, and relief in western part of Santa Cruz province (southermost Patagonia) were studied in rio de las Vueltas valley beetween Laguna del Desierto and Lago Viedma (49oS-49o30′S y a 73o W). There is great soil variability related to a strong north-west-south...

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Autores principales:	Villegas, Daniela Claudia, Pereyra, Fernando X., Viaggio, Adriana
Publicado:	2004
Materias:	Factors of soil formation Rio de las Vueltas Soil genesis Southern Patagonia bioclimatology parent material pedogenesis podzolization relief Argentina Patagonia Santa Cruz [Argentina] South America Western Hemisphere World
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n2_p200_Villegas http://hdl.handle.net/20.500.12110/paper_00044822_v59_n2_p200_Villegas
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00044822_v59_n2_p200_Villegas
record_format	dspace
spelling	paper:paper_00044822_v59_n2_p200_Villegas2023-06-08T14:25:45Z Soil genesis in Rio de las Vueltas valley, Santa Cruz province, Patagonia Villegas, Daniela Claudia Pereyra, Fernando X. Viaggio, Adriana Factors of soil formation Rio de las Vueltas Soil genesis Southern Patagonia bioclimatology parent material pedogenesis podzolization relief Argentina Patagonia Santa Cruz [Argentina] South America Western Hemisphere World Factors of soils formation, parent material, and relief in western part of Santa Cruz province (southermost Patagonia) were studied in rio de las Vueltas valley beetween Laguna del Desierto and Lago Viedma (49oS-49o30′S y a 73o W). There is great soil variability related to a strong north-west-south-east bioclimatic and geomorphic gradient. Soils were studied in a NW-SE transect, where three different sectors could be distinguished. The western area, including the Patagonian Andean Cordillera and piedmont is characterised by strong landscape variations due to glacial processes, colluvial, glacial, cineritc and glacifluvial parent materials, a udic-xeric regime and Nothofagus woodlands. The landscape of the eastern area is mainly of glacial-fluvioglacial, fluvial origin, with aeolian landforms, an and regime, grassland-shrub steppe and large flat structural plain landscape. Because of their different landscape-relief features and parent materials, both areas have different soils associations. The western area is characterized by a distrudepts, udivitrands/hapludands and haploxerolls sequence, meanwhile the eastern by an haplargides, torriortents and haplocalcides trends. In the western area, podzolisation features were recognized. In the north-western sector, Bs and E horizons were recognized, and low pH base saturation values, due to climatic conditions, indicate ongoing podzolization. Elsewhere in the south-eastern sector calcium carbonate from the surface, basic pH and total saturation are soils main features. © 2004 Asociación Geológica Argentina. Fil:Villegas, D.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pereyra, F.X. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Viaggio, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n2_p200_Villegas http://hdl.handle.net/20.500.12110/paper_00044822_v59_n2_p200_Villegas
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Factors of soil formation Rio de las Vueltas Soil genesis Southern Patagonia bioclimatology parent material pedogenesis podzolization relief Argentina Patagonia Santa Cruz [Argentina] South America Western Hemisphere World
spellingShingle	Factors of soil formation Rio de las Vueltas Soil genesis Southern Patagonia bioclimatology parent material pedogenesis podzolization relief Argentina Patagonia Santa Cruz [Argentina] South America Western Hemisphere World Villegas, Daniela Claudia Pereyra, Fernando X. Viaggio, Adriana Soil genesis in Rio de las Vueltas valley, Santa Cruz province, Patagonia
topic_facet	Factors of soil formation Rio de las Vueltas Soil genesis Southern Patagonia bioclimatology parent material pedogenesis podzolization relief Argentina Patagonia Santa Cruz [Argentina] South America Western Hemisphere World
description	Factors of soils formation, parent material, and relief in western part of Santa Cruz province (southermost Patagonia) were studied in rio de las Vueltas valley beetween Laguna del Desierto and Lago Viedma (49oS-49o30′S y a 73o W). There is great soil variability related to a strong north-west-south-east bioclimatic and geomorphic gradient. Soils were studied in a NW-SE transect, where three different sectors could be distinguished. The western area, including the Patagonian Andean Cordillera and piedmont is characterised by strong landscape variations due to glacial processes, colluvial, glacial, cineritc and glacifluvial parent materials, a udic-xeric regime and Nothofagus woodlands. The landscape of the eastern area is mainly of glacial-fluvioglacial, fluvial origin, with aeolian landforms, an and regime, grassland-shrub steppe and large flat structural plain landscape. Because of their different landscape-relief features and parent materials, both areas have different soils associations. The western area is characterized by a distrudepts, udivitrands/hapludands and haploxerolls sequence, meanwhile the eastern by an haplargides, torriortents and haplocalcides trends. In the western area, podzolisation features were recognized. In the north-western sector, Bs and E horizons were recognized, and low pH base saturation values, due to climatic conditions, indicate ongoing podzolization. Elsewhere in the south-eastern sector calcium carbonate from the surface, basic pH and total saturation are soils main features. © 2004 Asociación Geológica Argentina.
author	Villegas, Daniela Claudia Pereyra, Fernando X. Viaggio, Adriana
author_facet	Villegas, Daniela Claudia Pereyra, Fernando X. Viaggio, Adriana
author_sort	Villegas, Daniela Claudia
title	Soil genesis in Rio de las Vueltas valley, Santa Cruz province, Patagonia
title_short	Soil genesis in Rio de las Vueltas valley, Santa Cruz province, Patagonia
title_full	Soil genesis in Rio de las Vueltas valley, Santa Cruz province, Patagonia
title_fullStr	Soil genesis in Rio de las Vueltas valley, Santa Cruz province, Patagonia
title_full_unstemmed	Soil genesis in Rio de las Vueltas valley, Santa Cruz province, Patagonia
title_sort	soil genesis in rio de las vueltas valley, santa cruz province, patagonia
publishDate	2004
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n2_p200_Villegas http://hdl.handle.net/20.500.12110/paper_00044822_v59_n2_p200_Villegas
work_keys_str_mv	AT villegasdanielaclaudia soilgenesisinriodelasvueltasvalleysantacruzprovincepatagonia AT pereyrafernandox soilgenesisinriodelasvueltasvalleysantacruzprovincepatagonia AT viaggioadriana soilgenesisinriodelasvueltasvalleysantacruzprovincepatagonia
_version_	1768544983471620096

Soil genesis in Rio de las Vueltas valley, Santa Cruz province, Patagonia

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