Show simple item record

resumen

Abstract
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 [ver mas...]
dc.contributor.authorLa Manna, Ludmila
dc.contributor.authorTarabini, Manuela
dc.contributor.authorGomez, Federico Antonio
dc.contributor.authorRostagno, Cesar Mario
dc.date.accessioned2021-06-25T17:10:02Z
dc.date.available2021-06-25T17:10:02Z
dc.date.issued2021-06-17
dc.identifier.issn0016-7061
dc.identifier.otherhttps://doi.org/10.1016/j.geoderma.2021.115265
dc.identifier.urihttp://hdl.handle.net/20.500.12123/9666
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0016706121003451
dc.description.abstractLarge 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.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceGeoderma 403 : 115265 (2021)es_AR
dc.subjectPinuses_AR
dc.subjectPlantationseng
dc.subjectPlantacioneses_AR
dc.subjectRangelandseng
dc.subjectTierras de Pastoses_AR
dc.subjectErosiónes_AR
dc.subjectErosioneng
dc.subjectCambio de Uso de la Tierraes_AR
dc.subjectLand Use Changeeng
dc.subjectCarbono Orgánico del Sueloes_AR
dc.subjectSoil Organic Carbones_AR
dc.subject.otherRegión Patagónica
dc.titleChanges in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagoniaes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Esqueles_AR
dc.description.filFil: La Manna, Ludmila. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; Argentinaes_AR
dc.description.filFil: La Manna, Ludmila. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Tarabini, Manuela. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; Argentinaes_AR
dc.description.filFil: Tarabini, Manuela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Gómez, Federico Antonio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agroforestal Esquel; Argentinaes_AR
dc.description.filFil: Gómez, Federico Antonio. Universidad Nacional de la Patagonia San Juan Bosco. Facultad de Ingeniería. Centro de Estudios Ambientales Integrados; Argentinaes_AR
dc.description.filFil: Gómez, Federico Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Rostagno, César Mario. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Rostagno, César Mario. Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CENPAT); Argentinaes_AR
dc.subtypecientifico


Files in this item

Thumbnail

This item appears in the following Collection(s)

common

Show simple item record