Estimating soil erodibility from sonication indexes and other attributes of textural B horizon soils

Detalhes bibliográficos
Autor(a) principal: de Sá, Marcos Aurélio Carolino
Data de Publicação: 2004
Outros Autores: de Lima, José Maria, Curi, Nilton, Massaroto, João Aguilar, Marques, João José Granate de Sá e Mello
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/6827
Resumo: Soil erodibility is an important factor for estimating soil erosion losses. This factor is an expression of combined soil attributes, which make possible its estimation by equations. The objective of this study was to measure some chemical and mineralogical attributes, and to combine them with aggregate stability indexes from sonication analysis, in equations in order to estimate soil erodibility of textural B horizon soils from Brazil. These attributes were measured for 22 soils that had their erodibility measured from field plots. Attributes of 21 soils were used to adjust the equations. One of the soils (Red-Yellow Argisol) was used to test the equations. From 96 variables, 15 were significantly correlated to soil erodibility. Most of them are represented by the disruption indexes from sonication analysis of A horizon samples. This study resulted in four equations to estimate soil erodibility, whose R2 ranged from 0.83** to 0.91**. The erodibility can be estimated by aggregate stability indices based on sonication analysis.
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spelling Estimating soil erodibility from sonication indexes and other attributes of textural B horizon soilsEstimativa da erodibilidade pela desagregação por ultra-som e atributos de solos com horizonte B texturalUSLE; aggregate stability; chemistry; mineralogyUSLE; estabilidade de agregados; química; mineralogiaSoil erodibility is an important factor for estimating soil erosion losses. This factor is an expression of combined soil attributes, which make possible its estimation by equations. The objective of this study was to measure some chemical and mineralogical attributes, and to combine them with aggregate stability indexes from sonication analysis, in equations in order to estimate soil erodibility of textural B horizon soils from Brazil. These attributes were measured for 22 soils that had their erodibility measured from field plots. Attributes of 21 soils were used to adjust the equations. One of the soils (Red-Yellow Argisol) was used to test the equations. From 96 variables, 15 were significantly correlated to soil erodibility. Most of them are represented by the disruption indexes from sonication analysis of A horizon samples. This study resulted in four equations to estimate soil erodibility, whose R2 ranged from 0.83** to 0.91**. The erodibility can be estimated by aggregate stability indices based on sonication analysis.A erodibilidade de solos é um fator importante na estimativa das perdas por erosão. Este fator é uma expressão da combinação de atributos do solo, os quais possibilitam sua estimativa por meio de equações. O objetivo deste trabalho foi medir atributos químicos e mineralógicos que, combinados com índices de estabilidade de agregados determinados por ultra-som, pudessem ser utilizados como variáveis em modelos na estimativa da erodibilidade de solos com horizonte B textural do Brasil. Estes atributos foram determinados em 22 solos de erodibilidade conhecida, medida diretamente em parcelas no campo. Atributos de 21 dos solos foram utilizados no ajuste dos modelos. Um dos solos (Argissolo Vermelho-Amarelo) foi escolhido ao acaso para teste. De 96 variáveis, 15 foram incluídas nos modelos de estimativa da erodibilidade. A maioria delas é representada por índices de desagregação por sonificação de amostras do horizonte A. Foram obtidos quatro modelos para estimar a erodibilidade, com R2 variando entre 0,83** e 0,91**. A erodibilidade pode ser estimada com base na estabilidade de agregados por ultra-som.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária Brasileirade Sá, Marcos Aurélio Carolinode Lima, José MariaCuri, NiltonMassaroto, João AguilarMarques, João José Granate de Sá e Mello2004-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6827Pesquisa Agropecuaria Brasileira; v.39, n.7, jul. 2004; 691-699Pesquisa Agropecuária Brasileira; v.39, n.7, jul. 2004; 691-6991678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6827/3883info:eu-repo/semantics/openAccess2014-08-05T16:59:03Zoai:ojs.seer.sct.embrapa.br:article/6827Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-08-05T16:59:03Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Estimating soil erodibility from sonication indexes and other attributes of textural B horizon soils
Estimativa da erodibilidade pela desagregação por ultra-som e atributos de solos com horizonte B textural
title Estimating soil erodibility from sonication indexes and other attributes of textural B horizon soils
spellingShingle Estimating soil erodibility from sonication indexes and other attributes of textural B horizon soils
de Sá, Marcos Aurélio Carolino
USLE; aggregate stability; chemistry; mineralogy
USLE; estabilidade de agregados; química; mineralogia
title_short Estimating soil erodibility from sonication indexes and other attributes of textural B horizon soils
title_full Estimating soil erodibility from sonication indexes and other attributes of textural B horizon soils
title_fullStr Estimating soil erodibility from sonication indexes and other attributes of textural B horizon soils
title_full_unstemmed Estimating soil erodibility from sonication indexes and other attributes of textural B horizon soils
title_sort Estimating soil erodibility from sonication indexes and other attributes of textural B horizon soils
author de Sá, Marcos Aurélio Carolino
author_facet de Sá, Marcos Aurélio Carolino
de Lima, José Maria
Curi, Nilton
Massaroto, João Aguilar
Marques, João José Granate de Sá e Mello
author_role author
author2 de Lima, José Maria
Curi, Nilton
Massaroto, João Aguilar
Marques, João José Granate de Sá e Mello
author2_role author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv de Sá, Marcos Aurélio Carolino
de Lima, José Maria
Curi, Nilton
Massaroto, João Aguilar
Marques, João José Granate de Sá e Mello
dc.subject.por.fl_str_mv USLE; aggregate stability; chemistry; mineralogy
USLE; estabilidade de agregados; química; mineralogia
topic USLE; aggregate stability; chemistry; mineralogy
USLE; estabilidade de agregados; química; mineralogia
description Soil erodibility is an important factor for estimating soil erosion losses. This factor is an expression of combined soil attributes, which make possible its estimation by equations. The objective of this study was to measure some chemical and mineralogical attributes, and to combine them with aggregate stability indexes from sonication analysis, in equations in order to estimate soil erodibility of textural B horizon soils from Brazil. These attributes were measured for 22 soils that had their erodibility measured from field plots. Attributes of 21 soils were used to adjust the equations. One of the soils (Red-Yellow Argisol) was used to test the equations. From 96 variables, 15 were significantly correlated to soil erodibility. Most of them are represented by the disruption indexes from sonication analysis of A horizon samples. This study resulted in four equations to estimate soil erodibility, whose R2 ranged from 0.83** to 0.91**. The erodibility can be estimated by aggregate stability indices based on sonication analysis.
publishDate 2004
dc.date.none.fl_str_mv 2004-07-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6827
url https://seer.sct.embrapa.br/index.php/pab/article/view/6827
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6827/3883
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.39, n.7, jul. 2004; 691-699
Pesquisa Agropecuária Brasileira; v.39, n.7, jul. 2004; 691-699
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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