Malleable disc base for direct infiltration measurements using the tension infiltrometry technique

19 Pags. The definitive version, with 2 Tabls. and 6 Figs., is available at: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-1085

Detalles Bibliográficos
Autores: Moret-Fernández, David, Blanco-Moure, Nuria, Martínez-Chueca, Víctor, Bielsa Aced, Ana
Tipo de recurso: artículo
Fecha de publicación:2012
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/53235
Acceso en línea:http://hdl.handle.net/10261/53235
Access Level:acceso abierto
Palabra clave:cumulative infiltration curve
hydraulic conductivity
sorptivity
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spelling Malleable disc base for direct infiltration measurements using the tension infiltrometry techniqueMoret-Fernández, DavidBlanco-Moure, NuriaMartínez-Chueca, VíctorBielsa Aced, Anacumulative infiltration curvehydraulic conductivitysorptivity19 Pags. The definitive version, with 2 Tabls. and 6 Figs., is available at: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-1085The correct use of the tension disc infiltrometer requires the membrane of the disc base to be completely in contact with the soil surface. To achieve this contact, a thick layer of sand is commonly placed between the soil surface and the disc base. This paper presents an alternative disc (MDB), which, by incorporating a malleable membrane, allows direct infiltration measurements without using a contact sand layer. Infiltration curves obtained with this new design in a soil under three different tillage management treatments were compared with the corresponding curves obtained with a conventional disc (CDB) that uses a contact sand layer. The cumulative infiltration curves measured with CDB were analysed by the differentiated linearization (DL) method, and the corresponding curves obtained with MDB were analysed using both the DL and the cumulative linearization (CL) models. The values of hydraulic conductivity (K0) and sorptivity (S0) estimated with CDB were also compared with those obtained with MDB. Finally, the cumulative infiltration curves measured with CDB and MDB were compared with the corresponding modelled function for the respective K0 and S0 values calculated with the CL and DL models. The results show that, compared with CDB without a contact sand layer, MDB allows complete soil surface wetting even when non-smoothed soil surfaces are used. The CDB, which yielded average K0 values 18% lower than those estimated with MDB, gave the highest values of standard error for the hydraulic parameters calculated. Furthermore, the subjective method employed in the CDB-DL technique, which requires the first points of the differential infiltration line corresponding to the sand layer to be manually removed, introduces additional uncertainties in estimating S0 and K0. Comparison between the modelled and measured infiltration curves demonstrates that the DL or CL methods applied to MDB gave excellent estimates of S0 and K0.This research was supported by the Ministerio de Ciencia e Innovación of Spain (grant AGL2010-22050-C03-02) and by the Aragón regional government and La Caixa (grant GA-LC020/2010).Peer reviewedJohn Wiley & Sons201220122013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/53235reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1002/hyp.9206info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/532352026-05-22T06:33:51Z
dc.title.none.fl_str_mv Malleable disc base for direct infiltration measurements using the tension infiltrometry technique
title Malleable disc base for direct infiltration measurements using the tension infiltrometry technique
spellingShingle Malleable disc base for direct infiltration measurements using the tension infiltrometry technique
Moret-Fernández, David
cumulative infiltration curve
hydraulic conductivity
sorptivity
title_short Malleable disc base for direct infiltration measurements using the tension infiltrometry technique
title_full Malleable disc base for direct infiltration measurements using the tension infiltrometry technique
title_fullStr Malleable disc base for direct infiltration measurements using the tension infiltrometry technique
title_full_unstemmed Malleable disc base for direct infiltration measurements using the tension infiltrometry technique
title_sort Malleable disc base for direct infiltration measurements using the tension infiltrometry technique
dc.creator.none.fl_str_mv Moret-Fernández, David
Blanco-Moure, Nuria
Martínez-Chueca, Víctor
Bielsa Aced, Ana
author Moret-Fernández, David
author_facet Moret-Fernández, David
Blanco-Moure, Nuria
Martínez-Chueca, Víctor
Bielsa Aced, Ana
author_role author
author2 Blanco-Moure, Nuria
Martínez-Chueca, Víctor
Bielsa Aced, Ana
author2_role author
author
author
dc.subject.none.fl_str_mv cumulative infiltration curve
hydraulic conductivity
sorptivity
topic cumulative infiltration curve
hydraulic conductivity
sorptivity
description 19 Pags. The definitive version, with 2 Tabls. and 6 Figs., is available at: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-1085
publishDate 2012
dc.date.none.fl_str_mv 2012
2012
2013
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/10261/53235
url http://hdl.handle.net/10261/53235
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1002/hyp.9206
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
_version_ 1869423118373617665
score 15,811543

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