Buscar
Mostrando ítems 11-20 de 157
Pedosedimentary development of part of a Late Quaternary loess-palaeosol sequence in northwest Argentina
(John Wiley & Sons Ltd, 2004-12)
The field properties, magnetic susceptibility, particle size, calcium carbonate content, soil micromorphology and optical luminescence ages of the upper 6.1 m and lowermost 4.7 m of the 45 m loess-palaeosol sequence at El ...
Rock magnetism in modern soils, Buenos Aires Province, Argentina
(Pergamon-Elsevier Science Ltd, 2008-09)
The influence of climate on the magnetic signal has been investigated assuming it is a first order factor in soil formation. In order to assess the degree of variability of the magnetic signal under different drainage ...
Late Quaternary landscape reconstruction and geochronology in the northern Pampas of Buenos Aires province, Argentina
(Pergamon-Elsevier Science Ltd, 2009-02)
This paper reports the main sedimentary characteristics, soil micromorphology and optically-stimulated luminescence (OSL) ages, and details the pedosedimentary reconstruction, of the Hudson site situated in the northern ...
Agricultural land degradation by piping erosion in Chaco Plain, northwestern Argentina
(Elsevier Science, 2020-02)
Soil piping has been pointed out as an important water erosion agent in a wide range of climatic regions. It is responsible for high soil losses in loess derived soils. The goal of this study is to evaluate the factors ...
The role of loess weathering in the groundwater chemistry of the Chaco-Pampean Plain (Argentina)
(Elsevier, 2020-08)
The Chaco-Pampean Plain (CPP), Argentina, is one of the most extensive loess areas in the world, higlhly productive in terms of agriculture and livestock and with a generalized groundwater signature of Na-HCO3 water type. ...
Agricultural loess soils along a climosequence evidenced different susceptibility to acidification by simulated N-fertilization
(Elsevier Science, 2018-12)
Agricultural loess soils of the central region of Argentina show acidification evidences linked to both climatic conditions and N-fertilization. Because of that, simulations to estimate the future acidification trends under ...
Spatio-temporal variability behavior of land surface soil water content in shrub- and grass-land
(ELSEVIER SCIENCE BV, 2011)
The knowledge of the relationship between spatial variability of the surface soil water content (theta) and its mean across a spatial domain (theta(m)) is crucial for hydrological modeling and understanding soil water ...
Cation exchange capacity and mineralogy of loess soils with different amounts of volcanic ashes
(Elsevier, 2014-05)
The cation exchange capacity of soils (CEC) is largely affected by the mineralogy of their parent material. Soils of the Argentinean Pampas develop on illitic loess, mixed, in variable proportions, with volcanic ashes. ...