Filter Paper Method for the Determination of the Soil Water Retention Curve

Detalhes bibliográficos
Autor(a) principal: Almeida,Eurileny Lucas de
Data de Publicação: 2015
Outros Autores: Teixeira,Adunias dos Santos, Silva Filho,Francisco Chagas da, Assis Júnior,Raimundo Nonato de, Leão,Raimundo Alípio de Oliveira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Ciência do Solo (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501344
Resumo: ABSTRACT High cost and long time required to determine a retention curve by the conventional methods of the Richards Chamber and Haines Funnel limit its use; therefore, alternative methods to facilitate this routine are needed. The filter paper method to determine the soil water retention curve was evaluated and compared to the conventional method. Undisturbed samples were collected from five different soils. Using a Haines Funnel and Richards Chamber, moisture content was obtained for tensions of 2; 4; 6; 8; 10; 33; 100; 300; 700; and 1,500 kPa. In the filter paper test, the soil matric potential was obtained from the filter-paper calibration equation, and the moisture subsequently determined based on the gravimetric difference. The van Genuchten model was fitted to the observed data of soil matric potential versus moisture. Moisture values of the conventional and the filter paper methods, estimated by the van Genuchten model, were compared. The filter paper method, with R2 of 0.99, can be used to determine water retention curves of agricultural soils as an alternative to the conventional method.
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spelling Filter Paper Method for the Determination of the Soil Water Retention CurveRichards ChamberHaines FunnelWhatman No. 42 filter paperABSTRACT High cost and long time required to determine a retention curve by the conventional methods of the Richards Chamber and Haines Funnel limit its use; therefore, alternative methods to facilitate this routine are needed. The filter paper method to determine the soil water retention curve was evaluated and compared to the conventional method. Undisturbed samples were collected from five different soils. Using a Haines Funnel and Richards Chamber, moisture content was obtained for tensions of 2; 4; 6; 8; 10; 33; 100; 300; 700; and 1,500 kPa. In the filter paper test, the soil matric potential was obtained from the filter-paper calibration equation, and the moisture subsequently determined based on the gravimetric difference. The van Genuchten model was fitted to the observed data of soil matric potential versus moisture. Moisture values of the conventional and the filter paper methods, estimated by the van Genuchten model, were compared. The filter paper method, with R2 of 0.99, can be used to determine water retention curves of agricultural soils as an alternative to the conventional method.Sociedade Brasileira de Ciência do Solo2015-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501344Revista Brasileira de Ciência do Solo v.39 n.5 2015reponame:Revista Brasileira de Ciência do Solo (Online)instname:Sociedade Brasileira de Ciência do Solo (SBCS)instacron:SBCS10.1590/01000683rbcs20140546info:eu-repo/semantics/openAccessAlmeida,Eurileny Lucas deTeixeira,Adunias dos SantosSilva Filho,Francisco Chagas daAssis Júnior,Raimundo Nonato deLeão,Raimundo Alípio de Oliveiraeng2015-12-04T00:00:00Zoai:scielo:S0100-06832015000501344Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=0100-0683&lng=es&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||sbcs@ufv.br1806-96570100-0683opendoar:2015-12-04T00:00Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)false
dc.title.none.fl_str_mv Filter Paper Method for the Determination of the Soil Water Retention Curve
title Filter Paper Method for the Determination of the Soil Water Retention Curve
spellingShingle Filter Paper Method for the Determination of the Soil Water Retention Curve
Almeida,Eurileny Lucas de
Richards Chamber
Haines Funnel
Whatman No. 42 filter paper
title_short Filter Paper Method for the Determination of the Soil Water Retention Curve
title_full Filter Paper Method for the Determination of the Soil Water Retention Curve
title_fullStr Filter Paper Method for the Determination of the Soil Water Retention Curve
title_full_unstemmed Filter Paper Method for the Determination of the Soil Water Retention Curve
title_sort Filter Paper Method for the Determination of the Soil Water Retention Curve
author Almeida,Eurileny Lucas de
author_facet Almeida,Eurileny Lucas de
Teixeira,Adunias dos Santos
Silva Filho,Francisco Chagas da
Assis Júnior,Raimundo Nonato de
Leão,Raimundo Alípio de Oliveira
author_role author
author2 Teixeira,Adunias dos Santos
Silva Filho,Francisco Chagas da
Assis Júnior,Raimundo Nonato de
Leão,Raimundo Alípio de Oliveira
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Almeida,Eurileny Lucas de
Teixeira,Adunias dos Santos
Silva Filho,Francisco Chagas da
Assis Júnior,Raimundo Nonato de
Leão,Raimundo Alípio de Oliveira
dc.subject.por.fl_str_mv Richards Chamber
Haines Funnel
Whatman No. 42 filter paper
topic Richards Chamber
Haines Funnel
Whatman No. 42 filter paper
description ABSTRACT High cost and long time required to determine a retention curve by the conventional methods of the Richards Chamber and Haines Funnel limit its use; therefore, alternative methods to facilitate this routine are needed. The filter paper method to determine the soil water retention curve was evaluated and compared to the conventional method. Undisturbed samples were collected from five different soils. Using a Haines Funnel and Richards Chamber, moisture content was obtained for tensions of 2; 4; 6; 8; 10; 33; 100; 300; 700; and 1,500 kPa. In the filter paper test, the soil matric potential was obtained from the filter-paper calibration equation, and the moisture subsequently determined based on the gravimetric difference. The van Genuchten model was fitted to the observed data of soil matric potential versus moisture. Moisture values of the conventional and the filter paper methods, estimated by the van Genuchten model, were compared. The filter paper method, with R2 of 0.99, can be used to determine water retention curves of agricultural soils as an alternative to the conventional method.
publishDate 2015
dc.date.none.fl_str_mv 2015-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501344
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501344
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/01000683rbcs20140546
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
dc.source.none.fl_str_mv Revista Brasileira de Ciência do Solo v.39 n.5 2015
reponame:Revista Brasileira de Ciência do Solo (Online)
instname:Sociedade Brasileira de Ciência do Solo (SBCS)
instacron:SBCS
instname_str Sociedade Brasileira de Ciência do Solo (SBCS)
instacron_str SBCS
institution SBCS
reponame_str Revista Brasileira de Ciência do Solo (Online)
collection Revista Brasileira de Ciência do Solo (Online)
repository.name.fl_str_mv Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)
repository.mail.fl_str_mv ||sbcs@ufv.br
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