Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia

Autores
La Manna, Ludmila; Tarabini, Manuela; Gomez, Federico Antonio; Rostagno, Cesar Mario
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Large areas of the Patagonian Andean Region with high potential for planting fast-growing exotic conifers, based on the volcanic nature of its soils, are affected by erosion processes. This study aimed to analyse the effects of Pinus ponderosa afforestation on soil organic matter (OM) fractions in non-allophanic volcanic soils and to determine the relationship between organic matter, soil aggregates and erosion processes. The study was conducted along a forested hill slope showing different soil properties according to slope position. OM fractions and aggregate size fractions under different dispersion forces were analysed on 0–5 cm soil samples in rangelands and in 14- and 24-year old plantations on steep and gentle slopes. Simulated rainfall assays were performed to assess soil erodibility; OM and granulometry of sediments were also studied. Results showed that OM contents, mainly OM labile fractions (i.e., particulate OM, and OM associated with macro and large microaggregates), soil aggregation and the formation of very stable microaggregates were enhanced in the afforested soils. However, soil changes varied depending on the initial soil OM contents and on the age of the plantation, with more erratic and smaller changes in most fertile soils. Although potential erosion rates are lower in plantations than in rangeland soils, the high OM enrichment rates found in sediments imply a high OM loss when the soils remain uncovered. Erosion processes in afforestation involve the removal of microaggregates rich in OM and silt fractions, while in the rangelands, coarse and very coarse sand single particles are lost. Afforestation replacing degraded rangelands may be a way to control erosion in these highly erodible volcanic soils, as long as the soil remains covered. Otherwise, the loss of soil enriched in OM from the superficial soil could favour soil carbon depletion.
EEA Esquel
Fil: La Manna, Ludmila. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; Argentina
Fil: La Manna, Ludmila. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Tarabini, Manuela. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; Argentina
Fil: Tarabini, Manuela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gómez, Federico Antonio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agroforestal Esquel; Argentina
Fil: Gómez, Federico Antonio. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; Argentina
Fil: Gómez, Federico Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rostagno, César Mario. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rostagno, César Mario. Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CENPAT); Argentina
Fuente
Geoderma 403 : 115265 (2021)
Materia
Pinus
Plantaciones
Tierras de Pastos
Erosión
Cambio de Uso de la Tierra
Carbono Orgánico del Suelo
Soil Organic Carbon
Plantations
Rangelands
Erosion
Land Use Change
Región Patagónica
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/9666
Acceder
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oai_identifier_str oai:localhost:20.500.12123/9666
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spelling Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from PatagoniaLa Manna, LudmilaTarabini, ManuelaGomez, Federico AntonioRostagno, Cesar MarioPinusPlantacionesTierras de PastosErosiónCambio de Uso de la TierraCarbono Orgánico del SueloSoil Organic CarbonPlantationsRangelandsErosionLand Use ChangeRegión PatagónicaLarge areas of the Patagonian Andean Region with high potential for planting fast-growing exotic conifers, based on the volcanic nature of its soils, are affected by erosion processes. This study aimed to analyse the effects of Pinus ponderosa afforestation on soil organic matter (OM) fractions in non-allophanic volcanic soils and to determine the relationship between organic matter, soil aggregates and erosion processes. The study was conducted along a forested hill slope showing different soil properties according to slope position. OM fractions and aggregate size fractions under different dispersion forces were analysed on 0–5 cm soil samples in rangelands and in 14- and 24-year old plantations on steep and gentle slopes. Simulated rainfall assays were performed to assess soil erodibility; OM and granulometry of sediments were also studied. Results showed that OM contents, mainly OM labile fractions (i.e., particulate OM, and OM associated with macro and large microaggregates), soil aggregation and the formation of very stable microaggregates were enhanced in the afforested soils. However, soil changes varied depending on the initial soil OM contents and on the age of the plantation, with more erratic and smaller changes in most fertile soils. Although potential erosion rates are lower in plantations than in rangeland soils, the high OM enrichment rates found in sediments imply a high OM loss when the soils remain uncovered. Erosion processes in afforestation involve the removal of microaggregates rich in OM and silt fractions, while in the rangelands, coarse and very coarse sand single particles are lost. Afforestation replacing degraded rangelands may be a way to control erosion in these highly erodible volcanic soils, as long as the soil remains covered. Otherwise, the loss of soil enriched in OM from the superficial soil could favour soil carbon depletion.EEA EsquelFil: La Manna, Ludmila. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; ArgentinaFil: La Manna, Ludmila. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Tarabini, Manuela. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; ArgentinaFil: Tarabini, Manuela. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gómez, Federico Antonio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agroforestal Esquel; ArgentinaFil: Gómez, Federico Antonio. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; ArgentinaFil: Gómez, Federico Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rostagno, César Mario. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rostagno, César Mario. Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CENPAT); ArgentinaElsevier2021-06-25T17:10:02Z2021-06-25T17:10:02Z2021-06-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/9666https://www.sciencedirect.com/science/article/abs/pii/S00167061210034510016-7061https://doi.org/10.1016/j.geoderma.2021.115265Geoderma 403 : 115265 (2021)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:45:15Zoai:localhost:20.500.12123/9666instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:45:15.937INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia
title Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia
spellingShingle Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia
La Manna, Ludmila
Pinus
Plantaciones
Tierras de Pastos
Erosión
Cambio de Uso de la Tierra
Carbono Orgánico del Suelo
Soil Organic Carbon
Plantations
Rangelands
Erosion
Land Use Change
Región Patagónica
title_short Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia
title_full Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia
title_fullStr Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia
title_full_unstemmed Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia
title_sort Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia
dc.creator.none.fl_str_mv La Manna, Ludmila
Tarabini, Manuela
Gomez, Federico Antonio
Rostagno, Cesar Mario
author La Manna, Ludmila
author_facet La Manna, Ludmila
Tarabini, Manuela
Gomez, Federico Antonio
Rostagno, Cesar Mario
author_role author
author2 Tarabini, Manuela
Gomez, Federico Antonio
Rostagno, Cesar Mario
author2_role author
author
author
dc.subject.none.fl_str_mv Pinus
Plantaciones
Tierras de Pastos
Erosión
Cambio de Uso de la Tierra
Carbono Orgánico del Suelo
Soil Organic Carbon
Plantations
Rangelands
Erosion
Land Use Change
Región Patagónica
topic Pinus
Plantaciones
Tierras de Pastos
Erosión
Cambio de Uso de la Tierra
Carbono Orgánico del Suelo
Soil Organic Carbon
Plantations
Rangelands
Erosion
Land Use Change
Región Patagónica
dc.description.none.fl_txt_mv Large areas of the Patagonian Andean Region with high potential for planting fast-growing exotic conifers, based on the volcanic nature of its soils, are affected by erosion processes. This study aimed to analyse the effects of Pinus ponderosa afforestation on soil organic matter (OM) fractions in non-allophanic volcanic soils and to determine the relationship between organic matter, soil aggregates and erosion processes. The study was conducted along a forested hill slope showing different soil properties according to slope position. OM fractions and aggregate size fractions under different dispersion forces were analysed on 0–5 cm soil samples in rangelands and in 14- and 24-year old plantations on steep and gentle slopes. Simulated rainfall assays were performed to assess soil erodibility; OM and granulometry of sediments were also studied. Results showed that OM contents, mainly OM labile fractions (i.e., particulate OM, and OM associated with macro and large microaggregates), soil aggregation and the formation of very stable microaggregates were enhanced in the afforested soils. However, soil changes varied depending on the initial soil OM contents and on the age of the plantation, with more erratic and smaller changes in most fertile soils. Although potential erosion rates are lower in plantations than in rangeland soils, the high OM enrichment rates found in sediments imply a high OM loss when the soils remain uncovered. Erosion processes in afforestation involve the removal of microaggregates rich in OM and silt fractions, while in the rangelands, coarse and very coarse sand single particles are lost. Afforestation replacing degraded rangelands may be a way to control erosion in these highly erodible volcanic soils, as long as the soil remains covered. Otherwise, the loss of soil enriched in OM from the superficial soil could favour soil carbon depletion.
EEA Esquel
Fil: La Manna, Ludmila. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; Argentina
Fil: La Manna, Ludmila. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Tarabini, Manuela. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; Argentina
Fil: Tarabini, Manuela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gómez, Federico Antonio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agroforestal Esquel; Argentina
Fil: Gómez, Federico Antonio. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; Argentina
Fil: Gómez, Federico Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rostagno, César Mario. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rostagno, César Mario. Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CENPAT); Argentina
description Large areas of the Patagonian Andean Region with high potential for planting fast-growing exotic conifers, based on the volcanic nature of its soils, are affected by erosion processes. This study aimed to analyse the effects of Pinus ponderosa afforestation on soil organic matter (OM) fractions in non-allophanic volcanic soils and to determine the relationship between organic matter, soil aggregates and erosion processes. The study was conducted along a forested hill slope showing different soil properties according to slope position. OM fractions and aggregate size fractions under different dispersion forces were analysed on 0–5 cm soil samples in rangelands and in 14- and 24-year old plantations on steep and gentle slopes. Simulated rainfall assays were performed to assess soil erodibility; OM and granulometry of sediments were also studied. Results showed that OM contents, mainly OM labile fractions (i.e., particulate OM, and OM associated with macro and large microaggregates), soil aggregation and the formation of very stable microaggregates were enhanced in the afforested soils. However, soil changes varied depending on the initial soil OM contents and on the age of the plantation, with more erratic and smaller changes in most fertile soils. Although potential erosion rates are lower in plantations than in rangeland soils, the high OM enrichment rates found in sediments imply a high OM loss when the soils remain uncovered. Erosion processes in afforestation involve the removal of microaggregates rich in OM and silt fractions, while in the rangelands, coarse and very coarse sand single particles are lost. Afforestation replacing degraded rangelands may be a way to control erosion in these highly erodible volcanic soils, as long as the soil remains covered. Otherwise, the loss of soil enriched in OM from the superficial soil could favour soil carbon depletion.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-25T17:10:02Z
2021-06-25T17:10:02Z
2021-06-17
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/9666
https://www.sciencedirect.com/science/article/abs/pii/S0016706121003451
0016-7061
https://doi.org/10.1016/j.geoderma.2021.115265
url http://hdl.handle.net/20.500.12123/9666
https://www.sciencedirect.com/science/article/abs/pii/S0016706121003451
https://doi.org/10.1016/j.geoderma.2021.115265
identifier_str_mv 0016-7061
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Geoderma 403 : 115265 (2021)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.559606

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