Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | https://www.revistas.usp.br/sa/article/view/142949 |
Resumo: | Soil organic matter (SOM), which influences chemical, physical and biological soil attributes, is the main form of C found in the soil which can also be used as a soil sustainability index. The aim of this study was to use the quantity and quality of SOM as an indicator to determine the sustainability of different land uses (native vegetation, secondary vegetation, fruit orchards, horticultural areas, degraded pasture, improved pasture, and fields with annual crops) in the eastern Amazon. Improved pasture had higher soil C stock than the other land uses and was similar to the native vegetation, and also presented the highest quantity of C in a stable form in the soil (fraction < 53 μm). According to the C management index, improved pasture is the most similar in use to native vegetation. Changes in land use reduced the soil microbial C content, although the more conservationist systems (fruit orchards, secondary vegetation, and improved pasture) had contents similar to those of the native vegetation. The highest soil microbial quotients were found in fruit orchards and horticultural areas. Well-managed pastures were effective in accumulating C as stable forms in the soil, which demonstrates the sustainability of this land use in the region studied. |
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Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern AmazonC stockschanges in land usephysical fractionationcarbon management indexmicrobial biomass Soil organic matter (SOM), which influences chemical, physical and biological soil attributes, is the main form of C found in the soil which can also be used as a soil sustainability index. The aim of this study was to use the quantity and quality of SOM as an indicator to determine the sustainability of different land uses (native vegetation, secondary vegetation, fruit orchards, horticultural areas, degraded pasture, improved pasture, and fields with annual crops) in the eastern Amazon. Improved pasture had higher soil C stock than the other land uses and was similar to the native vegetation, and also presented the highest quantity of C in a stable form in the soil (fraction < 53 μm). According to the C management index, improved pasture is the most similar in use to native vegetation. Changes in land use reduced the soil microbial C content, although the more conservationist systems (fruit orchards, secondary vegetation, and improved pasture) had contents similar to those of the native vegetation. The highest soil microbial quotients were found in fruit orchards and horticultural areas. Well-managed pastures were effective in accumulating C as stable forms in the soil, which demonstrates the sustainability of this land use in the region studied.Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2018-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/14294910.1590/1678-992x-2016-0089Scientia Agricola; v. 75 n. 3 (2018); 225-232Scientia Agricola; Vol. 75 Núm. 3 (2018); 225-232Scientia Agricola; Vol. 75 No. 3 (2018); 225-2321678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/142949/137811Copyright (c) 2018 Scientia Agricolainfo:eu-repo/semantics/openAccessSignor, DianaDeon, Magnus Dall’IgnaCamargo, Plínio Barbosa deCerri, Carlos Eduardo Pellegrino2018-02-01T17:04:55Zoai:revistas.usp.br:article/142949Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2018-02-01T17:04:55Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon |
title |
Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon |
spellingShingle |
Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon Signor, Diana C stocks changes in land use physical fractionation carbon management index microbial biomass |
title_short |
Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon |
title_full |
Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon |
title_fullStr |
Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon |
title_full_unstemmed |
Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon |
title_sort |
Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon |
author |
Signor, Diana |
author_facet |
Signor, Diana Deon, Magnus Dall’Igna Camargo, Plínio Barbosa de Cerri, Carlos Eduardo Pellegrino |
author_role |
author |
author2 |
Deon, Magnus Dall’Igna Camargo, Plínio Barbosa de Cerri, Carlos Eduardo Pellegrino |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Signor, Diana Deon, Magnus Dall’Igna Camargo, Plínio Barbosa de Cerri, Carlos Eduardo Pellegrino |
dc.subject.por.fl_str_mv |
C stocks changes in land use physical fractionation carbon management index microbial biomass |
topic |
C stocks changes in land use physical fractionation carbon management index microbial biomass |
description |
Soil organic matter (SOM), which influences chemical, physical and biological soil attributes, is the main form of C found in the soil which can also be used as a soil sustainability index. The aim of this study was to use the quantity and quality of SOM as an indicator to determine the sustainability of different land uses (native vegetation, secondary vegetation, fruit orchards, horticultural areas, degraded pasture, improved pasture, and fields with annual crops) in the eastern Amazon. Improved pasture had higher soil C stock than the other land uses and was similar to the native vegetation, and also presented the highest quantity of C in a stable form in the soil (fraction < 53 μm). According to the C management index, improved pasture is the most similar in use to native vegetation. Changes in land use reduced the soil microbial C content, although the more conservationist systems (fruit orchards, secondary vegetation, and improved pasture) had contents similar to those of the native vegetation. The highest soil microbial quotients were found in fruit orchards and horticultural areas. Well-managed pastures were effective in accumulating C as stable forms in the soil, which demonstrates the sustainability of this land use in the region studied. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05-01 |
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/142949 10.1590/1678-992x-2016-0089 |
url |
https://www.revistas.usp.br/sa/article/view/142949 |
identifier_str_mv |
10.1590/1678-992x-2016-0089 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/sa/article/view/142949/137811 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Scientia Agricola info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 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. 75 n. 3 (2018); 225-232 Scientia Agricola; Vol. 75 Núm. 3 (2018); 225-232 Scientia Agricola; Vol. 75 No. 3 (2018); 225-232 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 |
_version_ |
1800222793355231232 |