Estimation of tropical soils’ hydraulic properties with inverse method and tension infiltrometer field data
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Ambiente & Água |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2020000300306 |
Resumo: | Abstract In the last few years, many studies have been published by authors from several countries offering approximations and use of the inverse method. However, the unique environmental conditions and distinct properties of the tropical soils in Brazil require extra considerations and the need to adjust these methods to tropical soil conditions. Considering the above, this determined the parameters of the van Genuchten (1980) model (θs, θr, α, n) of the water retention curve in the soils. It also determined the parameter (Ks) of the soil’s hydraulic conductivity curve by solving an inverse problem using the HYDRUS-2D model, considering cumulative infiltration data collected in the field by means of an infiltration test using the tension infiltrometer. It then compared the hydraulic properties determined by these methods in relation to the standard laboratory method. The inverse method was able to efficiently determine the water retention curves in the soils here studied; however, it was not possible to reliably determine the unsaturated hydraulic conductivity curve. |
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Revista Ambiente & Água |
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Estimation of tropical soils’ hydraulic properties with inverse method and tension infiltrometer field datacumulative infiltrationinitial conditionmodelingobjective functionAbstract In the last few years, many studies have been published by authors from several countries offering approximations and use of the inverse method. However, the unique environmental conditions and distinct properties of the tropical soils in Brazil require extra considerations and the need to adjust these methods to tropical soil conditions. Considering the above, this determined the parameters of the van Genuchten (1980) model (θs, θr, α, n) of the water retention curve in the soils. It also determined the parameter (Ks) of the soil’s hydraulic conductivity curve by solving an inverse problem using the HYDRUS-2D model, considering cumulative infiltration data collected in the field by means of an infiltration test using the tension infiltrometer. It then compared the hydraulic properties determined by these methods in relation to the standard laboratory method. The inverse method was able to efficiently determine the water retention curves in the soils here studied; however, it was not possible to reliably determine the unsaturated hydraulic conductivity curve.Instituto de Pesquisas Ambientais em Bacias Hidrográficas2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2020000300306Revista Ambiente & Água v.15 n.3 2020reponame:Revista Ambiente & Águainstname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)instacron:IPABHI10.4136/ambi-agua.2503info:eu-repo/semantics/openAccessSilva Junior,João José daColombo,AlbertoOliveira,Geraldo CézarSilva,Bruno MontoaniEugênio,José Eduardo Juliacieng2020-06-04T00:00:00Zoai:scielo:S1980-993X2020000300306Revistahttp://www.ambi-agua.net/PUBhttps://old.scielo.br/oai/scielo-oai.php||ambi.agua@gmail.com1980-993X1980-993Xopendoar:2020-06-04T00:00Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)false |
dc.title.none.fl_str_mv |
Estimation of tropical soils’ hydraulic properties with inverse method and tension infiltrometer field data |
title |
Estimation of tropical soils’ hydraulic properties with inverse method and tension infiltrometer field data |
spellingShingle |
Estimation of tropical soils’ hydraulic properties with inverse method and tension infiltrometer field data Silva Junior,João José da cumulative infiltration initial condition modeling objective function |
title_short |
Estimation of tropical soils’ hydraulic properties with inverse method and tension infiltrometer field data |
title_full |
Estimation of tropical soils’ hydraulic properties with inverse method and tension infiltrometer field data |
title_fullStr |
Estimation of tropical soils’ hydraulic properties with inverse method and tension infiltrometer field data |
title_full_unstemmed |
Estimation of tropical soils’ hydraulic properties with inverse method and tension infiltrometer field data |
title_sort |
Estimation of tropical soils’ hydraulic properties with inverse method and tension infiltrometer field data |
author |
Silva Junior,João José da |
author_facet |
Silva Junior,João José da Colombo,Alberto Oliveira,Geraldo Cézar Silva,Bruno Montoani Eugênio,José Eduardo Juliaci |
author_role |
author |
author2 |
Colombo,Alberto Oliveira,Geraldo Cézar Silva,Bruno Montoani Eugênio,José Eduardo Juliaci |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Silva Junior,João José da Colombo,Alberto Oliveira,Geraldo Cézar Silva,Bruno Montoani Eugênio,José Eduardo Juliaci |
dc.subject.por.fl_str_mv |
cumulative infiltration initial condition modeling objective function |
topic |
cumulative infiltration initial condition modeling objective function |
description |
Abstract In the last few years, many studies have been published by authors from several countries offering approximations and use of the inverse method. However, the unique environmental conditions and distinct properties of the tropical soils in Brazil require extra considerations and the need to adjust these methods to tropical soil conditions. Considering the above, this determined the parameters of the van Genuchten (1980) model (θs, θr, α, n) of the water retention curve in the soils. It also determined the parameter (Ks) of the soil’s hydraulic conductivity curve by solving an inverse problem using the HYDRUS-2D model, considering cumulative infiltration data collected in the field by means of an infiltration test using the tension infiltrometer. It then compared the hydraulic properties determined by these methods in relation to the standard laboratory method. The inverse method was able to efficiently determine the water retention curves in the soils here studied; however, it was not possible to reliably determine the unsaturated hydraulic conductivity curve. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
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=S1980-993X2020000300306 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2020000300306 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.4136/ambi-agua.2503 |
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 |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas |
publisher.none.fl_str_mv |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas |
dc.source.none.fl_str_mv |
Revista Ambiente & Água v.15 n.3 2020 reponame:Revista Ambiente & Água instname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI) instacron:IPABHI |
instname_str |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI) |
instacron_str |
IPABHI |
institution |
IPABHI |
reponame_str |
Revista Ambiente & Água |
collection |
Revista Ambiente & Água |
repository.name.fl_str_mv |
Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI) |
repository.mail.fl_str_mv |
||ambi.agua@gmail.com |
_version_ |
1752129751227564032 |