Seasonal nitrogen dynamics in a seepage lake receiving

11 pages, 6 figures, 2 tables

Detalles Bibliográficos
Autores: Piña, Elisa, Álvarez Cobelas, Miguel
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/17462
Acceso en línea:http://hdl.handle.net/10261/17462
Access Level:acceso abierto
Palabra clave:Dissolved nitrogen
Nitrogen cycle
Particulate nitrogen
Sediments
Water stratification
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spelling Seasonal nitrogen dynamics in a seepage lake receivingPiña, ElisaÁlvarez Cobelas, MiguelDissolved nitrogenNitrogen cycleParticulate nitrogenSedimentsWater stratification11 pages, 6 figures, 2 tablesStudies on nitrogen dynamics in seepage lakes are seldom undertaken, yet our understanding of the complex pattern of the nitrogen (N) cycle is complicated by its temporal and spatial heterogeneity. This research investigated temporal variation inNconcentration, considering different forms ofN(NO−3 ,NO−2 ,NH+4 , dissolved organicN, particulate organic N) in a Spanish flowthrough seepage lake (Colgada Lake) receiving high N loads. The study was based on monthly data collected over the period 2003–2005 from lake inputs and outputs, vertical profiles at a single representative site in the middle of the lake and fluxes of NH+4 and NO−3 at the sediment–water interface. The distribution of total N (TN) inputs and outputs did not follow a clear temporal pattern. TN inputs varied from 27.70 to 125 tonnes N month−1, 75–84% of which is NO−3 .Temporal variation of concentration profiles for different N forms measured showed significant differences owing to stratification. Ammonium always entered the sediment, whereas sediments acted as either a sink or source of NO−3 . Fluctuation in N dynamics in this lake was more influenced by external factors, such as the input variability, than by the turnover of nitrogenous substances in the water body. Comparing seasonal N dynamics, there seems to be temporal differences between seepage lakes and drainage lakes. In seepage lakes, dissolved inorganic nitrogen (DIN) peaks were reached in early spring and after overturn, whereas in drainage lakes, the autumn minimum gradually increased to maxima in late winter and during the stratification periodREN 2002-00558 Proyecto del Ministerio de Educación y Ciencia de EspañaPeer reviewedCSIRO Publishing200920092009info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501482639 bytesapplication/pdfhttp://hdl.handle.net/10261/17462reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1071/MF08098info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/174622026-05-22T06:33:51Z
dc.title.none.fl_str_mv Seasonal nitrogen dynamics in a seepage lake receiving
title Seasonal nitrogen dynamics in a seepage lake receiving
spellingShingle Seasonal nitrogen dynamics in a seepage lake receiving
Piña, Elisa
Dissolved nitrogen
Nitrogen cycle
Particulate nitrogen
Sediments
Water stratification
title_short Seasonal nitrogen dynamics in a seepage lake receiving
title_full Seasonal nitrogen dynamics in a seepage lake receiving
title_fullStr Seasonal nitrogen dynamics in a seepage lake receiving
title_full_unstemmed Seasonal nitrogen dynamics in a seepage lake receiving
title_sort Seasonal nitrogen dynamics in a seepage lake receiving
dc.creator.none.fl_str_mv Piña, Elisa
Álvarez Cobelas, Miguel
author Piña, Elisa
author_facet Piña, Elisa
Álvarez Cobelas, Miguel
author_role author
author2 Álvarez Cobelas, Miguel
author2_role author
dc.subject.none.fl_str_mv Dissolved nitrogen
Nitrogen cycle
Particulate nitrogen
Sediments
Water stratification
topic Dissolved nitrogen
Nitrogen cycle
Particulate nitrogen
Sediments
Water stratification
description 11 pages, 6 figures, 2 tables
publishDate 2009
dc.date.none.fl_str_mv 2009
2009
2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/17462
url http://hdl.handle.net/10261/17462
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1071/MF08098
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 482639 bytes
application/pdf
dc.publisher.none.fl_str_mv CSIRO Publishing
publisher.none.fl_str_mv CSIRO Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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