Concentration and transport of particulate nutrients and metals in the Lower Paraná River during extreme flooding

The ENSO event of 1997-1998 triggered one of the largest floods of the Paraná River since the beginning of its hydrological records (in 1884). The concentration and transport of particulate nutrients and metals of the river were assessed during the flood, and compared with the available information...

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Autores principales: Villar, C.A., Stripeikis, J., D'Huicque, L., Tudino, M., Bonetto, C.
Formato: JOUR
Materias:
Extreme flooding
Floodplain river
Metals
Nutrients
Paraná river
El Nino-Southern Oscillation
flooding
metal
particulate matter
river
South America
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00039136_v153_n2_p273_Villar
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00039136_v153_n2_p273_Villar2023-10-03T13:56:42Z Concentration and transport of particulate nutrients and metals in the Lower Paraná River during extreme flooding Villar, C.A. Stripeikis, J. D'Huicque, L. Tudino, M. Bonetto, C. Extreme flooding Floodplain river Metals Nutrients Paraná river El Nino-Southern Oscillation flooding metal particulate matter river South America The ENSO event of 1997-1998 triggered one of the largest floods of the Paraná River since the beginning of its hydrological records (in 1884). The concentration and transport of particulate nutrients and metals of the river were assessed during the flood, and compared with the available information for normal periods. Suspended matter (SM) concentration decreased during the ENSO flood. The present data also suggest a decreased SM transport, likely related to a sedimentary retention by the floodplain. The content of carbon, Cu and Zn in SM was higher during the rising limb of the hydrograph of the ENSO flood, counterbalancing the decrease in SM concentration, and resulting in an increased transport during this period (41, 33 and 24%, respectively). On the contrary, the content of Cd remained below detection limits during the increasing phase of the ENSO flood, to regain figures similar to the pre-ENSO period in the receding phase. During the ENSO period, the transport of particulate Cd showed an overall drop of 41%. The N content in SM did not show any discernible pattern. The transport of particulate N, P, Cr, and Pb showed a decrease during the ENSO flood (24, 30, 36, and 59%, respectively), suggesting a retention of these elements by the floodplain marshes, thus counterbalancing anthropic inputs to the basin. Fil:Villar, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Stripeikis, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tudino, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bonetto, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00039136_v153_n2_p273_Villar
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Extreme flooding
Floodplain river
Metals
Nutrients
Paraná river
El Nino-Southern Oscillation
flooding
metal
particulate matter
river
South America
spellingShingle Extreme flooding
Floodplain river
Metals
Nutrients
Paraná river
El Nino-Southern Oscillation
flooding
metal
particulate matter
river
South America
Villar, C.A.
Stripeikis, J.
D'Huicque, L.
Tudino, M.
Bonetto, C.
Concentration and transport of particulate nutrients and metals in the Lower Paraná River during extreme flooding
topic_facet Extreme flooding
Floodplain river
Metals
Nutrients
Paraná river
El Nino-Southern Oscillation
flooding
metal
particulate matter
river
South America
description The ENSO event of 1997-1998 triggered one of the largest floods of the Paraná River since the beginning of its hydrological records (in 1884). The concentration and transport of particulate nutrients and metals of the river were assessed during the flood, and compared with the available information for normal periods. Suspended matter (SM) concentration decreased during the ENSO flood. The present data also suggest a decreased SM transport, likely related to a sedimentary retention by the floodplain. The content of carbon, Cu and Zn in SM was higher during the rising limb of the hydrograph of the ENSO flood, counterbalancing the decrease in SM concentration, and resulting in an increased transport during this period (41, 33 and 24%, respectively). On the contrary, the content of Cd remained below detection limits during the increasing phase of the ENSO flood, to regain figures similar to the pre-ENSO period in the receding phase. During the ENSO period, the transport of particulate Cd showed an overall drop of 41%. The N content in SM did not show any discernible pattern. The transport of particulate N, P, Cr, and Pb showed a decrease during the ENSO flood (24, 30, 36, and 59%, respectively), suggesting a retention of these elements by the floodplain marshes, thus counterbalancing anthropic inputs to the basin.
format JOUR
author Villar, C.A.
Stripeikis, J.
D'Huicque, L.
Tudino, M.
Bonetto, C.
author_facet Villar, C.A.
Stripeikis, J.
D'Huicque, L.
Tudino, M.
Bonetto, C.
author_sort Villar, C.A.
title Concentration and transport of particulate nutrients and metals in the Lower Paraná River during extreme flooding
title_short Concentration and transport of particulate nutrients and metals in the Lower Paraná River during extreme flooding
title_full Concentration and transport of particulate nutrients and metals in the Lower Paraná River during extreme flooding
title_fullStr Concentration and transport of particulate nutrients and metals in the Lower Paraná River during extreme flooding
title_full_unstemmed Concentration and transport of particulate nutrients and metals in the Lower Paraná River during extreme flooding
title_sort concentration and transport of particulate nutrients and metals in the lower paraná river during extreme flooding
url http://hdl.handle.net/20.500.12110/paper_00039136_v153_n2_p273_Villar
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AT tudinom concentrationandtransportofparticulatenutrientsandmetalsinthelowerparanariverduringextremeflooding
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