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Mostrando ítems 21-27 de 27
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Procesos de formación en sitios arqueológicos de la Depresión del Río Salado (provincia de Buenos Aires, Argentina): análisis desde la micromorfología de suelos
Fernández, Alejandro; Morras, Hector; Bressan, Emiliano Miguel (Facultad de Filosofía y Letras, Universidad de Buenos Aires, 2022-05-01)La micromorfología de suelos es una técnica de aplicación en Arqueología que estudia muestras no disturbadas y permite visualizar los elementos constitutivos de un suelo y comprender la evolución pedológica del material ... -
Soil shrinkage curves and micromorphology in contrasting managements.
Fernández, Patricia L.; Alvarez, Carina Rosa; Behrends Kraemer, Filipe; Morras, Hector; Scheiner, Javier; Boivin, Pascal; Taboada, Miguel Angel (Asociación Argentina de la Ciencia del Suelo, 2020-06-01)Compaction processes are generally described using methods that do not distinguish volume changes of diffe rent types and pore sizes. The adjustment of shrinkage curves (ShC) using the XP model allows elucidation of the ... -
Soil stabilisation by water repellency under no-till management for soils with contrasting mineralogy and carbon quality
Behrends Kraemer, Filipe; Hallett, Paul D.; Morras, Hector; Garibaldi, Lucas Alejandro; Cosentino, Diego Julian; Duval, Matías; Galantini, Juan (Elsevier, 2019-08-23)No-till soil management is common around the globe, but the impacts on soil structural quality varies depending on cropping practice and inherent soil properties. This study explored water repellency as a driver of soil ... -
Soil structure and glyphosate fate under no-till management in the Pampa region. I. Soil structural anisotropy and hydro-physical behavior
Behrends Kraemer, Filipe; Sainz, Daiana Soledad; Morras, Héctor José María; Carfagno, Patricia; Eiza, Maximiliano Joaquin; Fernandez, P.; Chagas, Celio Ignacio (Elsevier, 2022-05-03)Several studies have reported a frequent occurrence of platy structures in soils under no tillage (NT), mostly in silty ones. The objective of this study was to evaluate the morphological features and the pore architecture ... -
Soil structure and glyphosate fate under no-till manangement in the pampa region. II. Glyphosate and AMPA persistence and spatial distribution in the long-term. A conceptual model
Morras, Héctor José María; Behrends Kraemer, Filipe; Sainz, Daiana Soledad; Fernández, Patricia; Chagas, Celio Ignacio (Elsevier, 2022-07-14)Glyphosate and AMPA were measured in a no-tilled (NT) soil and in the runoff resulting from the rain simulation carried out after 270 days of the application of the herbicide. Glyphosate concentration was in low values in ... -
Soils of the Chaco Region
Moretti, Lucas Martin; Morras, Hector; Pereyra, Fernando X.; Schulz, Guillermo (Springer, 2019)The Argentinian Chaco region belongs to an extensive ecoregion called “Great Chaco”, characterized by ample plains of fluvial aggradation and linked to the formation of large alluvial fans. The climate is semi-arid to ... -
Status and challenges of black soils
Fontana, Ademir; Labaz, Beata; Monger, Curtis; Morras, Hector; Wang, Lei; Pfeiffer, Marco; Taboada, Miguel Angel; Valle, Susana (FAO, 2022-11-05)Although black soils account for only 8.2 percent of the Global Land Area (FAO, 2022a), they are of paramount importance for food security, as highlighted by the UN Sustainable Development Goal 2 (i.e to end hunger, achieve ...