Filter Paper Method for the Determination of the Soil Water Retention Curve
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , , |
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. |
id |
SBCS-1_39f0e7fcdfed45491628e0ef4ec75cf4 |
---|---|
oai_identifier_str |
oai:scielo:S0100-06832015000501344 |
network_acronym_str |
SBCS-1 |
network_name_str |
Revista Brasileira de Ciência do Solo (Online) |
repository_id_str |
|
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 |
format |
article |
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 |
_version_ |
1752126520427544576 |