Soil quality indicators under management systems in a Quilombola community in the Brazilian Cerrado

Detalhes bibliográficos
Autor(a) principal: Silva, Antonio Marcos Miranda
Data de Publicação: 2019
Outros Autores: Ramos, Maria Lucrecia Gerosa, Nascimento, Robervone Severina de Melo Pereira do, Silva, Alberto do Nascimento, Silva, Stefany Braz, Cardoso, Elke Jurandy Bran Nogueira, Paula, Alessandra Monteiro de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: https://www.revistas.usp.br/sa/article/view/160645
Resumo: Soil management systems exert different effects on soil attributes, especially on the organic matter content, and, consequently, the soil aggregation. The aim of this study was to evaluate the impact of different land uses practiced by quilombola family farmers on water stable aggregates, glomalin and organic carbon in soil aggregates. Soil samples were collected at depths of 0-10 and 10-20 cm from areas cultivated under the following management systems: 1) conventional corn plantation (MA), 2) cultivation of citrus trees intercropped with annual crops (AC) (a conservationist approach), 3) pasture of Brachiaria (Urochloa spp.) (PA), and, as reference, an area of the Cerrado (CR) free of any anthropogenic interference. The studied areas were evaluated in a completely randomized design, with five replications, in a subplot scheme. The plots were the management systems and the subplots the depths. Soil macro-aggregates were predominant at both depths and the aggregate stability indices were higher than 90 % for all management systems. Total organic carbon in the two aggregate classes (micro and macroaggregates) correlated with the MWD (mean weight-diameter), but not with the easily extractable glomalin (EEG) related soil protein. Soil micro and macro-aggregates, EEG and MWD discriminated management systems and are important soil quality indicators. The carbon content in both micro-aggregates (C-MIC) and macro-aggregates (C-MAC) of the intercropped system (AC) was higher than in the CR. The soil attributes that best separated the areas were C-MIC, MWD and EEG in macro-aggregates for the depth of 0-10 cm, and EEG in micro-aggregates, together with MWD and C-MAC for the depth of 10-20 cm.
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spelling Soil quality indicators under management systems in a Quilombola community in the Brazilian CerradoRhodic Hapludoxwater-stable aggregatessoil proteinquilomboSoil management systems exert different effects on soil attributes, especially on the organic matter content, and, consequently, the soil aggregation. The aim of this study was to evaluate the impact of different land uses practiced by quilombola family farmers on water stable aggregates, glomalin and organic carbon in soil aggregates. Soil samples were collected at depths of 0-10 and 10-20 cm from areas cultivated under the following management systems: 1) conventional corn plantation (MA), 2) cultivation of citrus trees intercropped with annual crops (AC) (a conservationist approach), 3) pasture of Brachiaria (Urochloa spp.) (PA), and, as reference, an area of the Cerrado (CR) free of any anthropogenic interference. The studied areas were evaluated in a completely randomized design, with five replications, in a subplot scheme. The plots were the management systems and the subplots the depths. Soil macro-aggregates were predominant at both depths and the aggregate stability indices were higher than 90 % for all management systems. Total organic carbon in the two aggregate classes (micro and macroaggregates) correlated with the MWD (mean weight-diameter), but not with the easily extractable glomalin (EEG) related soil protein. Soil micro and macro-aggregates, EEG and MWD discriminated management systems and are important soil quality indicators. The carbon content in both micro-aggregates (C-MIC) and macro-aggregates (C-MAC) of the intercropped system (AC) was higher than in the CR. The soil attributes that best separated the areas were C-MIC, MWD and EEG in macro-aggregates for the depth of 0-10 cm, and EEG in micro-aggregates, together with MWD and C-MAC for the depth of 10-20 cm.Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2019-08-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/16064510.1590/1678-992x-2018-0008Scientia Agricola; v. 76 n. 6 (2019); 518-526Scientia Agricola; Vol. 76 Núm. 6 (2019); 518-526Scientia Agricola; Vol. 76 No. 6 (2019); 518-5261678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/160645/154896Copyright (c) 2019 Scientia Agricolainfo:eu-repo/semantics/openAccessSilva, Antonio Marcos MirandaRamos, Maria Lucrecia GerosaNascimento, Robervone Severina de Melo Pereira doSilva, Alberto do NascimentoSilva, Stefany BrazCardoso, Elke Jurandy Bran NogueiraPaula, Alessandra Monteiro de2019-08-02T17:12:54Zoai:revistas.usp.br:article/160645Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2019-08-02T17:12:54Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Soil quality indicators under management systems in a Quilombola community in the Brazilian Cerrado
title Soil quality indicators under management systems in a Quilombola community in the Brazilian Cerrado
spellingShingle Soil quality indicators under management systems in a Quilombola community in the Brazilian Cerrado
Silva, Antonio Marcos Miranda
Rhodic Hapludox
water-stable aggregates
soil protein
quilombo
title_short Soil quality indicators under management systems in a Quilombola community in the Brazilian Cerrado
title_full Soil quality indicators under management systems in a Quilombola community in the Brazilian Cerrado
title_fullStr Soil quality indicators under management systems in a Quilombola community in the Brazilian Cerrado
title_full_unstemmed Soil quality indicators under management systems in a Quilombola community in the Brazilian Cerrado
title_sort Soil quality indicators under management systems in a Quilombola community in the Brazilian Cerrado
author Silva, Antonio Marcos Miranda
author_facet Silva, Antonio Marcos Miranda
Ramos, Maria Lucrecia Gerosa
Nascimento, Robervone Severina de Melo Pereira do
Silva, Alberto do Nascimento
Silva, Stefany Braz
Cardoso, Elke Jurandy Bran Nogueira
Paula, Alessandra Monteiro de
author_role author
author2 Ramos, Maria Lucrecia Gerosa
Nascimento, Robervone Severina de Melo Pereira do
Silva, Alberto do Nascimento
Silva, Stefany Braz
Cardoso, Elke Jurandy Bran Nogueira
Paula, Alessandra Monteiro de
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Silva, Antonio Marcos Miranda
Ramos, Maria Lucrecia Gerosa
Nascimento, Robervone Severina de Melo Pereira do
Silva, Alberto do Nascimento
Silva, Stefany Braz
Cardoso, Elke Jurandy Bran Nogueira
Paula, Alessandra Monteiro de
dc.subject.por.fl_str_mv Rhodic Hapludox
water-stable aggregates
soil protein
quilombo
topic Rhodic Hapludox
water-stable aggregates
soil protein
quilombo
description Soil management systems exert different effects on soil attributes, especially on the organic matter content, and, consequently, the soil aggregation. The aim of this study was to evaluate the impact of different land uses practiced by quilombola family farmers on water stable aggregates, glomalin and organic carbon in soil aggregates. Soil samples were collected at depths of 0-10 and 10-20 cm from areas cultivated under the following management systems: 1) conventional corn plantation (MA), 2) cultivation of citrus trees intercropped with annual crops (AC) (a conservationist approach), 3) pasture of Brachiaria (Urochloa spp.) (PA), and, as reference, an area of the Cerrado (CR) free of any anthropogenic interference. The studied areas were evaluated in a completely randomized design, with five replications, in a subplot scheme. The plots were the management systems and the subplots the depths. Soil macro-aggregates were predominant at both depths and the aggregate stability indices were higher than 90 % for all management systems. Total organic carbon in the two aggregate classes (micro and macroaggregates) correlated with the MWD (mean weight-diameter), but not with the easily extractable glomalin (EEG) related soil protein. Soil micro and macro-aggregates, EEG and MWD discriminated management systems and are important soil quality indicators. The carbon content in both micro-aggregates (C-MIC) and macro-aggregates (C-MAC) of the intercropped system (AC) was higher than in the CR. The soil attributes that best separated the areas were C-MIC, MWD and EEG in macro-aggregates for the depth of 0-10 cm, and EEG in micro-aggregates, together with MWD and C-MAC for the depth of 10-20 cm.
publishDate 2019
dc.date.none.fl_str_mv 2019-08-02
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://www.revistas.usp.br/sa/article/view/160645
10.1590/1678-992x-2018-0008
url https://www.revistas.usp.br/sa/article/view/160645
identifier_str_mv 10.1590/1678-992x-2018-0008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/sa/article/view/160645/154896
dc.rights.driver.fl_str_mv Copyright (c) 2019 Scientia Agricola
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 Scientia Agricola
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
publisher.none.fl_str_mv Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
dc.source.none.fl_str_mv Scientia Agricola; v. 76 n. 6 (2019); 518-526
Scientia Agricola; Vol. 76 Núm. 6 (2019); 518-526
Scientia Agricola; Vol. 76 No. 6 (2019); 518-526
1678-992X
0103-9016
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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