Facultad de Agronomia - UBA

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Acceso al documento : Documento de Acceso Restringido. Disponible sólo para la Comunidad FAUBA.
URL al registro : http://ri.agro.uba.ar/cgi-bin/library.cgi?a=d&c=arti&d=2016ares2
Tipo de material : Artículo
Autores : Ares, María Guadalupe; Varni, Marcelo; Chagas, Celio Ignacio
Título en inglés : Suspended sediment concentration controlling factors an analysis for the Argentine Pampas region : an analysis for the Argentine Pampas region
Fuente : Hydrological Sciences Journal
Año : 2016
Volumen y número : Vol.61
Temas : WATER EROSION; DISCHARGE; PRECIPITATION; PRINCIPAL; COMPONENT ANALYSIS; REGRESSION ANALYSIS
Idioma : inglés
Descripción : tbls., grafs., mapas
Páginas :  p.2237–2248
Resumen : In the Argentine Pampas region, there is little information about sediment concentration in agricultural catchments. The aims of this work are: (1) to analyse fluctuations in sediment concentration and discharge, as a first attempt to characterize hysteresis patterns; and (2) to study sediment concentration controlling factors and to assess the importance of these factors using principal component analysis and a multiple regression model. Twenty-five events registered during 4 years in a 560 ha gauged basin of Argentina were studied. Analysis of data suggested a positive clockwise pattern. The multiple regression model was performed with three factors obtained by principal component analysis: runoff, precipitation and antecedent conditions. The model explained 83% of the variability of sediment concentration. The runoff factor contributed to modelled sediment concentration with the highest magnitude, followed by precipitation and antecedent condition factors. Although the watershed is under conservation tillage, rill erosion seems to be the main source of sediment concentration.
DOI : 10.1080/02626667.2015.1099793
Link al editor : https://www.tandfonline.com
Cita recomendada : Ares, M. G.; Varni, M.; & Chagas, C. I. (2016). Suspended sediment concentration controlling factors an analysis for the Argentine Pampas region : an analysis for the Argentine Pampas region. Hydrological Sciences Journal‚ 61‚ (12) p.2237–2248. Doi: 10.1080/02626667.2015.1099793.
 
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