Nutrient dynamics in the Paraná River Delta: relationship to the hydrologic regime and the floodplain wetlands

Autores
Primost, Jezabel Elena; Peluso, Leticia; Sasal, Maria Carolina; Bonetto, Carlos A.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
South America contains the most extensive freshwater wetlands in the world, associated with the floodplains of the Amazon, Orinoco and Paraná rivers. The Paraná River delta is a large wetland system strongly influenced by the flood/drought cycles of the river. Water quality remains largely unreported at the regional scale. The present study aims to evaluate the effect of increasing anthropogenic disturbances on nutrient concentrations in the Paraná deltaic system. Within this framework, the river-floodplain interaction is examined. Fourteen sites located along 300 km were sampled over the course of three successive years. The results showed a large spatial homogeneity: most of the studied parameters showed a higher temporal than spatial variability. The temporal variability was associated with flood/drought cycles of the river, while the differences among the sampling sites were related to nearby anthropic activities. Significantly lower nitrate, soluble reactive phosphorus, and suspended matter concentrations occurred in coincidence with high hydrological connectivity, particularly during the El Niño-Southern Oscillation (ENSO) flooding, compared to the medium hydrological connectivity conditions, suggesting the effect of river-floodplain interactions. In contrast, ammonium concentrations were significantly higher after the floods. Also, nitrate concentrations were significantly higher in the upper deltaic stretch than in the middle or lower stretches, despite the loads contributed by several affluents with higher concentrations than those in the Paraná River. The present results demonstrate the extent to which the Paraná River delta removes suspended matter, nitrate, and P, thus providing an enormously valuable ecosystem service by maintaining acceptable water quality in the river despite increasing contaminant loads. This study supplies a detailed baseline of water quality and knowledge about ecosystem functions in the deltaic wetlands, useful in the design of conservation policies for safeguarding the largest floodplain in Argentina.
EEA Paraná
Fil: Primost, Jezabel. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Estudios del Medioambiente; Argentina
Fil: Primost, Jezabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios del Medioambiente; Argentina
Fil: Peluso, Leticia. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Estudios del Medioambiente; Argentina
Fil: Peluso, Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios del Medioambiente; Argentina
Fil: Sasal, María Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina
Fil: Bonetto, Carlos A. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Limnología; Argentina
Fil: Bonetto, Carlos A. Universidad Nacional de La Plata. Instituto de Limnología; Argentina
Fuente
Limnologica : 125970 (Available online 20 April 2022)
Materia
Tierras Húmedas
Nutrientes
Calidad del Agua
Ciclo Hidrológico
Agua Superficial
Llanura Aluvial
Wetlands
Nutrients
Water Quality
Hydrological Cycle
Surface Water
Floodplains
Delta del Río Paraná, Argentina
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/11737
Acceder
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oai_identifier_str oai:localhost:20.500.12123/11737
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network_name_str INTA Digital (INTA)
spelling Nutrient dynamics in the Paraná River Delta: relationship to the hydrologic regime and the floodplain wetlandsPrimost, Jezabel ElenaPeluso, LeticiaSasal, Maria CarolinaBonetto, Carlos A.Tierras HúmedasNutrientesCalidad del AguaCiclo HidrológicoAgua SuperficialLlanura AluvialWetlandsNutrientsWater QualityHydrological CycleSurface WaterFloodplainsDelta del Río Paraná, ArgentinaSouth America contains the most extensive freshwater wetlands in the world, associated with the floodplains of the Amazon, Orinoco and Paraná rivers. The Paraná River delta is a large wetland system strongly influenced by the flood/drought cycles of the river. Water quality remains largely unreported at the regional scale. The present study aims to evaluate the effect of increasing anthropogenic disturbances on nutrient concentrations in the Paraná deltaic system. Within this framework, the river-floodplain interaction is examined. Fourteen sites located along 300 km were sampled over the course of three successive years. The results showed a large spatial homogeneity: most of the studied parameters showed a higher temporal than spatial variability. The temporal variability was associated with flood/drought cycles of the river, while the differences among the sampling sites were related to nearby anthropic activities. Significantly lower nitrate, soluble reactive phosphorus, and suspended matter concentrations occurred in coincidence with high hydrological connectivity, particularly during the El Niño-Southern Oscillation (ENSO) flooding, compared to the medium hydrological connectivity conditions, suggesting the effect of river-floodplain interactions. In contrast, ammonium concentrations were significantly higher after the floods. Also, nitrate concentrations were significantly higher in the upper deltaic stretch than in the middle or lower stretches, despite the loads contributed by several affluents with higher concentrations than those in the Paraná River. The present results demonstrate the extent to which the Paraná River delta removes suspended matter, nitrate, and P, thus providing an enormously valuable ecosystem service by maintaining acceptable water quality in the river despite increasing contaminant loads. This study supplies a detailed baseline of water quality and knowledge about ecosystem functions in the deltaic wetlands, useful in the design of conservation policies for safeguarding the largest floodplain in Argentina.EEA ParanáFil: Primost, Jezabel. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Estudios del Medioambiente; ArgentinaFil: Primost, Jezabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios del Medioambiente; ArgentinaFil: Peluso, Leticia. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Estudios del Medioambiente; ArgentinaFil: Peluso, Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios del Medioambiente; ArgentinaFil: Sasal, María Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; ArgentinaFil: Bonetto, Carlos A. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Limnología; ArgentinaFil: Bonetto, Carlos A. Universidad Nacional de La Plata. Instituto de Limnología; ArgentinaElsevierinfo:eu-repo/date/embargoEnd/2023-04-262022-04-26T12:32:47Z2022-04-26T12:32:47Z2022-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/11737https://www.sciencedirect.com/science/article/abs/pii/S007595112200024X0075-9511https://doi.org/10.1016/j.limno.2022.125970Limnologica : 125970 (Available online 20 April 2022)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:45:32Zoai:localhost:20.500.12123/11737instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:45:32.731INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Nutrient dynamics in the Paraná River Delta: relationship to the hydrologic regime and the floodplain wetlands
title Nutrient dynamics in the Paraná River Delta: relationship to the hydrologic regime and the floodplain wetlands
spellingShingle Nutrient dynamics in the Paraná River Delta: relationship to the hydrologic regime and the floodplain wetlands
Primost, Jezabel Elena
Tierras Húmedas
Nutrientes
Calidad del Agua
Ciclo Hidrológico
Agua Superficial
Llanura Aluvial
Wetlands
Nutrients
Water Quality
Hydrological Cycle
Surface Water
Floodplains
Delta del Río Paraná, Argentina
title_short Nutrient dynamics in the Paraná River Delta: relationship to the hydrologic regime and the floodplain wetlands
title_full Nutrient dynamics in the Paraná River Delta: relationship to the hydrologic regime and the floodplain wetlands
title_fullStr Nutrient dynamics in the Paraná River Delta: relationship to the hydrologic regime and the floodplain wetlands
title_full_unstemmed Nutrient dynamics in the Paraná River Delta: relationship to the hydrologic regime and the floodplain wetlands
title_sort Nutrient dynamics in the Paraná River Delta: relationship to the hydrologic regime and the floodplain wetlands
dc.creator.none.fl_str_mv Primost, Jezabel Elena
Peluso, Leticia
Sasal, Maria Carolina
Bonetto, Carlos A.
author Primost, Jezabel Elena
author_facet Primost, Jezabel Elena
Peluso, Leticia
Sasal, Maria Carolina
Bonetto, Carlos A.
author_role author
author2 Peluso, Leticia
Sasal, Maria Carolina
Bonetto, Carlos A.
author2_role author
author
author
dc.subject.none.fl_str_mv Tierras Húmedas
Nutrientes
Calidad del Agua
Ciclo Hidrológico
Agua Superficial
Llanura Aluvial
Wetlands
Nutrients
Water Quality
Hydrological Cycle
Surface Water
Floodplains
Delta del Río Paraná, Argentina
topic Tierras Húmedas
Nutrientes
Calidad del Agua
Ciclo Hidrológico
Agua Superficial
Llanura Aluvial
Wetlands
Nutrients
Water Quality
Hydrological Cycle
Surface Water
Floodplains
Delta del Río Paraná, Argentina
dc.description.none.fl_txt_mv South America contains the most extensive freshwater wetlands in the world, associated with the floodplains of the Amazon, Orinoco and Paraná rivers. The Paraná River delta is a large wetland system strongly influenced by the flood/drought cycles of the river. Water quality remains largely unreported at the regional scale. The present study aims to evaluate the effect of increasing anthropogenic disturbances on nutrient concentrations in the Paraná deltaic system. Within this framework, the river-floodplain interaction is examined. Fourteen sites located along 300 km were sampled over the course of three successive years. The results showed a large spatial homogeneity: most of the studied parameters showed a higher temporal than spatial variability. The temporal variability was associated with flood/drought cycles of the river, while the differences among the sampling sites were related to nearby anthropic activities. Significantly lower nitrate, soluble reactive phosphorus, and suspended matter concentrations occurred in coincidence with high hydrological connectivity, particularly during the El Niño-Southern Oscillation (ENSO) flooding, compared to the medium hydrological connectivity conditions, suggesting the effect of river-floodplain interactions. In contrast, ammonium concentrations were significantly higher after the floods. Also, nitrate concentrations were significantly higher in the upper deltaic stretch than in the middle or lower stretches, despite the loads contributed by several affluents with higher concentrations than those in the Paraná River. The present results demonstrate the extent to which the Paraná River delta removes suspended matter, nitrate, and P, thus providing an enormously valuable ecosystem service by maintaining acceptable water quality in the river despite increasing contaminant loads. This study supplies a detailed baseline of water quality and knowledge about ecosystem functions in the deltaic wetlands, useful in the design of conservation policies for safeguarding the largest floodplain in Argentina.
EEA Paraná
Fil: Primost, Jezabel. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Estudios del Medioambiente; Argentina
Fil: Primost, Jezabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios del Medioambiente; Argentina
Fil: Peluso, Leticia. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Estudios del Medioambiente; Argentina
Fil: Peluso, Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios del Medioambiente; Argentina
Fil: Sasal, María Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina
Fil: Bonetto, Carlos A. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Limnología; Argentina
Fil: Bonetto, Carlos A. Universidad Nacional de La Plata. Instituto de Limnología; Argentina
description South America contains the most extensive freshwater wetlands in the world, associated with the floodplains of the Amazon, Orinoco and Paraná rivers. The Paraná River delta is a large wetland system strongly influenced by the flood/drought cycles of the river. Water quality remains largely unreported at the regional scale. The present study aims to evaluate the effect of increasing anthropogenic disturbances on nutrient concentrations in the Paraná deltaic system. Within this framework, the river-floodplain interaction is examined. Fourteen sites located along 300 km were sampled over the course of three successive years. The results showed a large spatial homogeneity: most of the studied parameters showed a higher temporal than spatial variability. The temporal variability was associated with flood/drought cycles of the river, while the differences among the sampling sites were related to nearby anthropic activities. Significantly lower nitrate, soluble reactive phosphorus, and suspended matter concentrations occurred in coincidence with high hydrological connectivity, particularly during the El Niño-Southern Oscillation (ENSO) flooding, compared to the medium hydrological connectivity conditions, suggesting the effect of river-floodplain interactions. In contrast, ammonium concentrations were significantly higher after the floods. Also, nitrate concentrations were significantly higher in the upper deltaic stretch than in the middle or lower stretches, despite the loads contributed by several affluents with higher concentrations than those in the Paraná River. The present results demonstrate the extent to which the Paraná River delta removes suspended matter, nitrate, and P, thus providing an enormously valuable ecosystem service by maintaining acceptable water quality in the river despite increasing contaminant loads. This study supplies a detailed baseline of water quality and knowledge about ecosystem functions in the deltaic wetlands, useful in the design of conservation policies for safeguarding the largest floodplain in Argentina.
publishDate 2022
dc.date.none.fl_str_mv 2022-04-26T12:32:47Z
2022-04-26T12:32:47Z
2022-04
info:eu-repo/date/embargoEnd/2023-04-26
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/11737
https://www.sciencedirect.com/science/article/abs/pii/S007595112200024X
0075-9511
https://doi.org/10.1016/j.limno.2022.125970
url http://hdl.handle.net/20.500.12123/11737
https://www.sciencedirect.com/science/article/abs/pii/S007595112200024X
https://doi.org/10.1016/j.limno.2022.125970
identifier_str_mv 0075-9511
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Limnologica : 125970 (Available online 20 April 2022)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.559606

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