Hydraulic conductivity and water retention in leptosols-regosols and saprolite derived from sandstone, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2011 |
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=S0100-06832011000400018 |
Resumo: | Leptosols and Regosols are soils with a series of restrictions for use, mainly related to the effective depth, which have been poorly studied in Brazil. These soils, when derived from sedimentary rocks should be treated with particular care to avoid environmental damage such as aquifer contamination. The purpose of this study was to verify the behavior of hydraulic conductivity and water retention capacity in profiles of Leptosols and Regosols derived from sandstone of the Caturrita formation in Rio Grande do Sul state. The morphology, particle size distribution, porosity, soil density (Ds), saturated hydraulic conductivity (Ks), basic water infiltration in the field (BI) and water retention were determined in soil and saprolite samples of six soil profiles. High Ds, low macroporosity and high microporosity were observed in the profiles, resulting in a low Ks and BI, even under conditions of sandy texture and a highly fractured saprolite layer. The variation coefficients of data of Ks and BI were high among the studied profiles and between replications of a same profile. Water retention of the studied soils was higher in Cr layers than in the A horizons and the volume of plant-available water greater and variable among A horizons and Cr layers. |
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Hydraulic conductivity and water retention in leptosols-regosols and saprolite derived from sandstone, Brazilpedologysoil physicssoil water infiltrationLeptosols and Regosols are soils with a series of restrictions for use, mainly related to the effective depth, which have been poorly studied in Brazil. These soils, when derived from sedimentary rocks should be treated with particular care to avoid environmental damage such as aquifer contamination. The purpose of this study was to verify the behavior of hydraulic conductivity and water retention capacity in profiles of Leptosols and Regosols derived from sandstone of the Caturrita formation in Rio Grande do Sul state. The morphology, particle size distribution, porosity, soil density (Ds), saturated hydraulic conductivity (Ks), basic water infiltration in the field (BI) and water retention were determined in soil and saprolite samples of six soil profiles. High Ds, low macroporosity and high microporosity were observed in the profiles, resulting in a low Ks and BI, even under conditions of sandy texture and a highly fractured saprolite layer. The variation coefficients of data of Ks and BI were high among the studied profiles and between replications of a same profile. Water retention of the studied soils was higher in Cr layers than in the A horizons and the volume of plant-available water greater and variable among A horizons and Cr layers.Sociedade Brasileira de Ciência do Solo2011-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000400018Revista Brasileira de Ciência do Solo v.35 n.4 2011reponame:Revista Brasileira de Ciência do Solo (Online)instname:Sociedade Brasileira de Ciência do Solo (SBCS)instacron:SBCS10.1590/S0100-06832011000400018info:eu-repo/semantics/openAccessAraújo Pedron,Fabrício deFink,Jessé RodrigoRodrigues,Miriam FernandaAzevedo,Antonio Carlos deeng2011-10-21T00:00:00Zoai:scielo:S0100-06832011000400018Revistahttp://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:2011-10-21T00:00Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)false |
dc.title.none.fl_str_mv |
Hydraulic conductivity and water retention in leptosols-regosols and saprolite derived from sandstone, Brazil |
title |
Hydraulic conductivity and water retention in leptosols-regosols and saprolite derived from sandstone, Brazil |
spellingShingle |
Hydraulic conductivity and water retention in leptosols-regosols and saprolite derived from sandstone, Brazil Araújo Pedron,Fabrício de pedology soil physics soil water infiltration |
title_short |
Hydraulic conductivity and water retention in leptosols-regosols and saprolite derived from sandstone, Brazil |
title_full |
Hydraulic conductivity and water retention in leptosols-regosols and saprolite derived from sandstone, Brazil |
title_fullStr |
Hydraulic conductivity and water retention in leptosols-regosols and saprolite derived from sandstone, Brazil |
title_full_unstemmed |
Hydraulic conductivity and water retention in leptosols-regosols and saprolite derived from sandstone, Brazil |
title_sort |
Hydraulic conductivity and water retention in leptosols-regosols and saprolite derived from sandstone, Brazil |
author |
Araújo Pedron,Fabrício de |
author_facet |
Araújo Pedron,Fabrício de Fink,Jessé Rodrigo Rodrigues,Miriam Fernanda Azevedo,Antonio Carlos de |
author_role |
author |
author2 |
Fink,Jessé Rodrigo Rodrigues,Miriam Fernanda Azevedo,Antonio Carlos de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Araújo Pedron,Fabrício de Fink,Jessé Rodrigo Rodrigues,Miriam Fernanda Azevedo,Antonio Carlos de |
dc.subject.por.fl_str_mv |
pedology soil physics soil water infiltration |
topic |
pedology soil physics soil water infiltration |
description |
Leptosols and Regosols are soils with a series of restrictions for use, mainly related to the effective depth, which have been poorly studied in Brazil. These soils, when derived from sedimentary rocks should be treated with particular care to avoid environmental damage such as aquifer contamination. The purpose of this study was to verify the behavior of hydraulic conductivity and water retention capacity in profiles of Leptosols and Regosols derived from sandstone of the Caturrita formation in Rio Grande do Sul state. The morphology, particle size distribution, porosity, soil density (Ds), saturated hydraulic conductivity (Ks), basic water infiltration in the field (BI) and water retention were determined in soil and saprolite samples of six soil profiles. High Ds, low macroporosity and high microporosity were observed in the profiles, resulting in a low Ks and BI, even under conditions of sandy texture and a highly fractured saprolite layer. The variation coefficients of data of Ks and BI were high among the studied profiles and between replications of a same profile. Water retention of the studied soils was higher in Cr layers than in the A horizons and the volume of plant-available water greater and variable among A horizons and Cr layers. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-08-01 |
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=S0100-06832011000400018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000400018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-06832011000400018 |
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.35 n.4 2011 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_ |
1752126517132918784 |