Dynamics of Phosphorus in sediments of a naturally acidic lake
- Autores
- Temporetti, Pedro Felix; Snodgrass, Kimberley; Pedrozo, Fernando Luis
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The mechanisms which controls the fixation and/or release of P in sediment of an extremely acidic lake (pH = 2.0 to 3.0) and its response to the influence of eutrophic urban waste water were investigated. The results, in the chemical composition, in the mineralogy of the sediment and in the material as obtained from sediment traps, show that the lake sediments are mainly volcanic material reflecting volcanic features of the basin. The sedimentation rate calculated for the lake (2.510−2 mg m−2 day−1) was higher than that observed in other similar glacial lakes in both Andean Patagonia and also elsewhere in the world. The Total Phosphorus concentration in sediments was higher than figures reported by other authors for mining acid lakes, and the main fraction of P was found associated with organic matter. There was no control by Fe or Al on P, because both are in solution at pH < 3.0. It was concluded that changes in the natural input of nutrients (derivatives of Copahue volcano fluid, the discharge of sewage, or basin run-off) are responsible for a high concentration of SRP and N-NH4+ in the lake. Laboratory experiments showed that sediments have no ability to retain phosphorus and a continuous release of P from the sediments into the water column was observed. The assays where the pH was artificially increased showed that the P still remains in solution until at least pH 7.0. It was concluded that changes in the natural input of nutrients due to: 1) the volcanic fluids, 2) the increase in sewage charges, or 3) surface runoff upstream, maintain a high trophic state with high concentrations of dissolved P and N-NH4+, although the threshold of neutral pH in the lake is exceeded. This study will enable a better understanding about of the mechanism of release/fixation of phosphorus in acidic sediments in order to assist in making decisions regarding the conservation and management of this natural environment.
Fil: Temporetti, Pedro Felix. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación En Biodiversidad y Medioambiente; Argentina
Fil: Snodgrass, Kimberley. State University Of Montana. Department Of Earth Sciences; Estados Unidos
Fil: Pedrozo, Fernando Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación En Biodiversidad y Medioambiente; Argentina - Materia
-
Sediments
Phosphorus Release
Acidic Lake - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/6721
Ver los metadatos del registro completo
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Dynamics of Phosphorus in sediments of a naturally acidic lakeTemporetti, Pedro FelixSnodgrass, KimberleyPedrozo, Fernando LuisSedimentsPhosphorus ReleaseAcidic Lakehttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1The mechanisms which controls the fixation and/or release of P in sediment of an extremely acidic lake (pH = 2.0 to 3.0) and its response to the influence of eutrophic urban waste water were investigated. The results, in the chemical composition, in the mineralogy of the sediment and in the material as obtained from sediment traps, show that the lake sediments are mainly volcanic material reflecting volcanic features of the basin. The sedimentation rate calculated for the lake (2.510−2 mg m−2 day−1) was higher than that observed in other similar glacial lakes in both Andean Patagonia and also elsewhere in the world. The Total Phosphorus concentration in sediments was higher than figures reported by other authors for mining acid lakes, and the main fraction of P was found associated with organic matter. There was no control by Fe or Al on P, because both are in solution at pH < 3.0. It was concluded that changes in the natural input of nutrients (derivatives of Copahue volcano fluid, the discharge of sewage, or basin run-off) are responsible for a high concentration of SRP and N-NH4+ in the lake. Laboratory experiments showed that sediments have no ability to retain phosphorus and a continuous release of P from the sediments into the water column was observed. The assays where the pH was artificially increased showed that the P still remains in solution until at least pH 7.0. It was concluded that changes in the natural input of nutrients due to: 1) the volcanic fluids, 2) the increase in sewage charges, or 3) surface runoff upstream, maintain a high trophic state with high concentrations of dissolved P and N-NH4+, although the threshold of neutral pH in the lake is exceeded. This study will enable a better understanding about of the mechanism of release/fixation of phosphorus in acidic sediments in order to assist in making decisions regarding the conservation and management of this natural environment.Fil: Temporetti, Pedro Felix. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación En Biodiversidad y Medioambiente; ArgentinaFil: Snodgrass, Kimberley. State University Of Montana. Department Of Earth Sciences; Estados UnidosFil: Pedrozo, Fernando Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación En Biodiversidad y Medioambiente; ArgentinaElsevier2013-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6721Temporetti, Pedro Felix; Snodgrass, Kimberley; Pedrozo, Fernando Luis; Dynamics of Phosphorus in sediments of a naturally acidic lake; Elsevier; International Journal of Sediment Research; 28; 1; 1-2013; 90-1021001-6279enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1001627913600219info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1016/S1001-6279(13)60021-9info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:06:57Zoai:ri.conicet.gov.ar:11336/6721instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:06:57.411CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Dynamics of Phosphorus in sediments of a naturally acidic lake |
title |
Dynamics of Phosphorus in sediments of a naturally acidic lake |
spellingShingle |
Dynamics of Phosphorus in sediments of a naturally acidic lake Temporetti, Pedro Felix Sediments Phosphorus Release Acidic Lake |
title_short |
Dynamics of Phosphorus in sediments of a naturally acidic lake |
title_full |
Dynamics of Phosphorus in sediments of a naturally acidic lake |
title_fullStr |
Dynamics of Phosphorus in sediments of a naturally acidic lake |
title_full_unstemmed |
Dynamics of Phosphorus in sediments of a naturally acidic lake |
title_sort |
Dynamics of Phosphorus in sediments of a naturally acidic lake |
dc.creator.none.fl_str_mv |
Temporetti, Pedro Felix Snodgrass, Kimberley Pedrozo, Fernando Luis |
author |
Temporetti, Pedro Felix |
author_facet |
Temporetti, Pedro Felix Snodgrass, Kimberley Pedrozo, Fernando Luis |
author_role |
author |
author2 |
Snodgrass, Kimberley Pedrozo, Fernando Luis |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Sediments Phosphorus Release Acidic Lake |
topic |
Sediments Phosphorus Release Acidic Lake |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.7 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The mechanisms which controls the fixation and/or release of P in sediment of an extremely acidic lake (pH = 2.0 to 3.0) and its response to the influence of eutrophic urban waste water were investigated. The results, in the chemical composition, in the mineralogy of the sediment and in the material as obtained from sediment traps, show that the lake sediments are mainly volcanic material reflecting volcanic features of the basin. The sedimentation rate calculated for the lake (2.510−2 mg m−2 day−1) was higher than that observed in other similar glacial lakes in both Andean Patagonia and also elsewhere in the world. The Total Phosphorus concentration in sediments was higher than figures reported by other authors for mining acid lakes, and the main fraction of P was found associated with organic matter. There was no control by Fe or Al on P, because both are in solution at pH < 3.0. It was concluded that changes in the natural input of nutrients (derivatives of Copahue volcano fluid, the discharge of sewage, or basin run-off) are responsible for a high concentration of SRP and N-NH4+ in the lake. Laboratory experiments showed that sediments have no ability to retain phosphorus and a continuous release of P from the sediments into the water column was observed. The assays where the pH was artificially increased showed that the P still remains in solution until at least pH 7.0. It was concluded that changes in the natural input of nutrients due to: 1) the volcanic fluids, 2) the increase in sewage charges, or 3) surface runoff upstream, maintain a high trophic state with high concentrations of dissolved P and N-NH4+, although the threshold of neutral pH in the lake is exceeded. This study will enable a better understanding about of the mechanism of release/fixation of phosphorus in acidic sediments in order to assist in making decisions regarding the conservation and management of this natural environment. Fil: Temporetti, Pedro Felix. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación En Biodiversidad y Medioambiente; Argentina Fil: Snodgrass, Kimberley. State University Of Montana. Department Of Earth Sciences; Estados Unidos Fil: Pedrozo, Fernando Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación En Biodiversidad y Medioambiente; Argentina |
description |
The mechanisms which controls the fixation and/or release of P in sediment of an extremely acidic lake (pH = 2.0 to 3.0) and its response to the influence of eutrophic urban waste water were investigated. The results, in the chemical composition, in the mineralogy of the sediment and in the material as obtained from sediment traps, show that the lake sediments are mainly volcanic material reflecting volcanic features of the basin. The sedimentation rate calculated for the lake (2.510−2 mg m−2 day−1) was higher than that observed in other similar glacial lakes in both Andean Patagonia and also elsewhere in the world. The Total Phosphorus concentration in sediments was higher than figures reported by other authors for mining acid lakes, and the main fraction of P was found associated with organic matter. There was no control by Fe or Al on P, because both are in solution at pH < 3.0. It was concluded that changes in the natural input of nutrients (derivatives of Copahue volcano fluid, the discharge of sewage, or basin run-off) are responsible for a high concentration of SRP and N-NH4+ in the lake. Laboratory experiments showed that sediments have no ability to retain phosphorus and a continuous release of P from the sediments into the water column was observed. The assays where the pH was artificially increased showed that the P still remains in solution until at least pH 7.0. It was concluded that changes in the natural input of nutrients due to: 1) the volcanic fluids, 2) the increase in sewage charges, or 3) surface runoff upstream, maintain a high trophic state with high concentrations of dissolved P and N-NH4+, although the threshold of neutral pH in the lake is exceeded. This study will enable a better understanding about of the mechanism of release/fixation of phosphorus in acidic sediments in order to assist in making decisions regarding the conservation and management of this natural environment. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/6721 Temporetti, Pedro Felix; Snodgrass, Kimberley; Pedrozo, Fernando Luis; Dynamics of Phosphorus in sediments of a naturally acidic lake; Elsevier; International Journal of Sediment Research; 28; 1; 1-2013; 90-102 1001-6279 |
url |
http://hdl.handle.net/11336/6721 |
identifier_str_mv |
Temporetti, Pedro Felix; Snodgrass, Kimberley; Pedrozo, Fernando Luis; Dynamics of Phosphorus in sediments of a naturally acidic lake; Elsevier; International Journal of Sediment Research; 28; 1; 1-2013; 90-102 1001-6279 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1001627913600219 info:eu-repo/semantics/altIdentifier/doi/ info:eu-repo/semantics/altIdentifier/doi/10.1016/S1001-6279(13)60021-9 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.13397 |