Exploring the role of hydraulic conductivity on the contribution of the hyporheic zone to in-stream nitrogen uptake

Este artículo contiene 3 figuras, 2 tablas.

Detalhes bibliográficos
Autores: Mendoza-Lera, Clara, Ribot, Miquel, Foulquier, Arnaud, Martí, Eugènia, Bonnineau, Chloé, Breil, Pascal, Datry, Thibault
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/187223
Acesso em linha:http://hdl.handle.net/10261/187223
Access Level:acceso abierto
Palavra-chave:AOA
AOB
Clogging
Siltation
Stream biogeochemistry
Ammonia oxidizers
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spelling Exploring the role of hydraulic conductivity on the contribution of the hyporheic zone to in-stream nitrogen uptakeMendoza-Lera, ClaraRibot, MiquelFoulquier, ArnaudMartí, EugèniaBonnineau, ChloéBreil, PascalDatry, ThibaultAOAAOBCloggingSiltationStream biogeochemistryAmmonia oxidizersEste artículo contiene 3 figuras, 2 tablas.Nitrogen uptake (N-uptake) within the hyporheic zone provides key ecological services, such as nutrient removal, of stream ecosystems. We hypothesize that the hydraulic conductivity (Kf) of the hyporheic sediments governs nutrient uptake rates through effects on the: i) surface and subsurface flow (i.e. hyporheic flow); and ii) hyporheic N-uptake. Here, we worked at two hierarchical spatial scales (reach- and hyporheic-scale) to disentangle the role of Kf on N-uptake. At the reach scale, we performed co-injected N-NH4+ and Cl– additions in six reaches with contrasting reach Kf (10−1 – 10−5 m/s) and simultaneously determined a) in-stream N-uptake (hyporheic+benthic N-uptake), and b) hyporheic flow, N-uptake, and c) microbial abundance at the hyporheic scale. Results suggest that Kf determines the contribution of the hyporheic zone to hydrological exchange, but that its role varies between scales to determine in-stream N-uptake. At the reach scale, Kf variability seems to determine the extent at which the hyporheic zone contribute to hyporheic flow; and thus, to N-uptake velocity. At the hyporheic scale, Kf seems to indirectly determine hyporheic N-uptake through the proportion of surface water that enters the hyporheic zone (i.e. relative connectivity) and the abundance of the microbial community. These results suggest an interplay between Kf at both scales and the spatial heterogeneity, which will ultimately drive in-stream N-uptake at reach-scale. In this sense, we found that Kf can be considered as a unifying variable for stream biogeochemical processes and as an important variable to derive the contribution of hyporheic zone to in-stream nutrient removal capacity.Peer reviewedJohn Wiley & SonsConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/187223reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1002/eco.2139Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1872232026-05-22T06:33:51Z
dc.title.none.fl_str_mv Exploring the role of hydraulic conductivity on the contribution of the hyporheic zone to in-stream nitrogen uptake
title Exploring the role of hydraulic conductivity on the contribution of the hyporheic zone to in-stream nitrogen uptake
spellingShingle Exploring the role of hydraulic conductivity on the contribution of the hyporheic zone to in-stream nitrogen uptake
Mendoza-Lera, Clara
AOA
AOB
Clogging
Siltation
Stream biogeochemistry
Ammonia oxidizers
title_short Exploring the role of hydraulic conductivity on the contribution of the hyporheic zone to in-stream nitrogen uptake
title_full Exploring the role of hydraulic conductivity on the contribution of the hyporheic zone to in-stream nitrogen uptake
title_fullStr Exploring the role of hydraulic conductivity on the contribution of the hyporheic zone to in-stream nitrogen uptake
title_full_unstemmed Exploring the role of hydraulic conductivity on the contribution of the hyporheic zone to in-stream nitrogen uptake
title_sort Exploring the role of hydraulic conductivity on the contribution of the hyporheic zone to in-stream nitrogen uptake
dc.creator.none.fl_str_mv Mendoza-Lera, Clara
Ribot, Miquel
Foulquier, Arnaud
Martí, Eugènia
Bonnineau, Chloé
Breil, Pascal
Datry, Thibault
author Mendoza-Lera, Clara
author_facet Mendoza-Lera, Clara
Ribot, Miquel
Foulquier, Arnaud
Martí, Eugènia
Bonnineau, Chloé
Breil, Pascal
Datry, Thibault
author_role author
author2 Ribot, Miquel
Foulquier, Arnaud
Martí, Eugènia
Bonnineau, Chloé
Breil, Pascal
Datry, Thibault
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv AOA
AOB
Clogging
Siltation
Stream biogeochemistry
Ammonia oxidizers
topic AOA
AOB
Clogging
Siltation
Stream biogeochemistry
Ammonia oxidizers
description Este artículo contiene 3 figuras, 2 tablas.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/187223
url http://hdl.handle.net/10261/187223
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1002/eco.2139
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
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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score 15,812429

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