Suspended sediment concentration controlling factors an analysis for the Argentine Pampas region an analysis for the Argentine Pampas region

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 conce...

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Autor principal: Ares, María Guadalupe
Otros Autores: Varni, Marcelo, Chagas, Celio Ignacio
Formato: Artículo
Lenguaje:Inglés
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Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2016ares2.pdf
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Aporte de:Registro referencial: Solicitar el recurso aquí
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024 |a 10.1080/02626667.2015.1099793 
040 |a AR-BaUFA 
100 1 |9 32717  |a Ares, María Guadalupe  |u CONICET . Buenos Aires, Argentina.  |u bInstituto de Hidrología de Llanuras “Dr E. J. Usunoff”, Azul, Argentina 
245 0 0 |a Suspended sediment concentration controlling factors an analysis for the Argentine Pampas region  |b an analysis for the Argentine Pampas region 
520 |a 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. 
653 |a WATER EROSION 
653 |a DISCHARGE 
653 |a PRECIPITATION 
653 |a PRINCIPAL 
653 |a COMPONENT ANALYSIS 
653 |a REGRESSION ANALYSIS 
700 1 |9 46117  |a Varni, Marcelo  |u Instituto de Hidrología de Llanuras “Dr E. J. Usunoff”, Azul, Argentina. 
700 1 |a Chagas, Celio Ignacio  |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Ingeniería Agrícola y Uso de la Tierral. Cátedra de Manejo y Conservación de Suelos. Buenos Aires, Argentina.  |9 12919 
773 |t Hydrological Sciences Journal  |g Vol.61, no.12 (2016), p.2237–2248, tbls., grafs., mapas 
856 |f 2016ares2  |i En Reservorio:  |q application/pdf  |u http://ri.agro.uba.ar/files/intranet/articulo/2016ares2.pdf  |x ARTI201808 
856 |u https://www.tandfonline.com  |z LINK AL EDITOR 
942 |c ARTICULO 
942 |c ENLINEA 
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