Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42609 |
Resumo: | In Amazonia, the main causes of deforestation are systems based on slash-and-burn agriculture. The objective of this work was to evaluate temporal changes in the soil chemical attributes after the vegetation has been slashed and burned in an area of native forest in the Western Amazon. For this study, four hectares of forest in Cruzeiro do Sul, State of Acre, Brazil, was slashed and burned. The soil in the study area was classified as Ultisol (Argissolo Amarelo Distrófico típico). Soil samples were collected over the course of one year, the first one being collected 16 hours after the burn and the others at 30, 60, 90, 150, 210, 270, and 360 days after the burn. The soil surface layers were more sensitive to fire action. Ashes from vegetation burn increased pH values, basic cations, and C values only in the first months, resulting in higher basal saturation values (V%). The practice of slash-and-burn after 12 months resulted in lower values of pH, Ca, Mg, K, and P and higher values of Al and H, as well as saturation by aluminum in the soil, indicating this practice contributes to the reduction of soil fertility. |
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Acta Scientiarum. Agronomy (Online) |
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Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazonamazonian agroecosystemsoil fertilitycycling of nutrientssoil managementBrasil.In Amazonia, the main causes of deforestation are systems based on slash-and-burn agriculture. The objective of this work was to evaluate temporal changes in the soil chemical attributes after the vegetation has been slashed and burned in an area of native forest in the Western Amazon. For this study, four hectares of forest in Cruzeiro do Sul, State of Acre, Brazil, was slashed and burned. The soil in the study area was classified as Ultisol (Argissolo Amarelo Distrófico típico). Soil samples were collected over the course of one year, the first one being collected 16 hours after the burn and the others at 30, 60, 90, 150, 210, 270, and 360 days after the burn. The soil surface layers were more sensitive to fire action. Ashes from vegetation burn increased pH values, basic cations, and C values only in the first months, resulting in higher basal saturation values (V%). The practice of slash-and-burn after 12 months resulted in lower values of pH, Ca, Mg, K, and P and higher values of Al and H, as well as saturation by aluminum in the soil, indicating this practice contributes to the reduction of soil fertility.Universidade Estadual de Maringá2019-03-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4260910.4025/actasciagron.v41i1.42609Acta Scientiarum. Agronomy; Vol 41 (2019): Publicação Contínua; e42609Acta Scientiarum. Agronomy; v. 41 (2019): Publicação Contínua; e426091807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMengporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42609/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42609/751375147162Copyright (c) 2019 Acta Scientiarum. Agronomyhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSilva Neto, Eduardo Carvalho daPereira, Marcos GervasioFrade Júnior, Elizio FerreiraSilva, Sandra Bezerra daCarvalho Júnior, João AndradeSantos, José Carlos dos2019-09-24T12:25:27Zoai:periodicos.uem.br/ojs:article/42609Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2019-09-24T12:25:27Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon |
title |
Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon |
spellingShingle |
Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon Silva Neto, Eduardo Carvalho da amazonian agroecosystem soil fertility cycling of nutrients soil management Brasil. |
title_short |
Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon |
title_full |
Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon |
title_fullStr |
Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon |
title_full_unstemmed |
Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon |
title_sort |
Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon |
author |
Silva Neto, Eduardo Carvalho da |
author_facet |
Silva Neto, Eduardo Carvalho da Pereira, Marcos Gervasio Frade Júnior, Elizio Ferreira Silva, Sandra Bezerra da Carvalho Júnior, João Andrade Santos, José Carlos dos |
author_role |
author |
author2 |
Pereira, Marcos Gervasio Frade Júnior, Elizio Ferreira Silva, Sandra Bezerra da Carvalho Júnior, João Andrade Santos, José Carlos dos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Silva Neto, Eduardo Carvalho da Pereira, Marcos Gervasio Frade Júnior, Elizio Ferreira Silva, Sandra Bezerra da Carvalho Júnior, João Andrade Santos, José Carlos dos |
dc.subject.por.fl_str_mv |
amazonian agroecosystem soil fertility cycling of nutrients soil management Brasil. |
topic |
amazonian agroecosystem soil fertility cycling of nutrients soil management Brasil. |
description |
In Amazonia, the main causes of deforestation are systems based on slash-and-burn agriculture. The objective of this work was to evaluate temporal changes in the soil chemical attributes after the vegetation has been slashed and burned in an area of native forest in the Western Amazon. For this study, four hectares of forest in Cruzeiro do Sul, State of Acre, Brazil, was slashed and burned. The soil in the study area was classified as Ultisol (Argissolo Amarelo Distrófico típico). Soil samples were collected over the course of one year, the first one being collected 16 hours after the burn and the others at 30, 60, 90, 150, 210, 270, and 360 days after the burn. The soil surface layers were more sensitive to fire action. Ashes from vegetation burn increased pH values, basic cations, and C values only in the first months, resulting in higher basal saturation values (V%). The practice of slash-and-burn after 12 months resulted in lower values of pH, Ca, Mg, K, and P and higher values of Al and H, as well as saturation by aluminum in the soil, indicating this practice contributes to the reduction of soil fertility. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-03-13 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42609 10.4025/actasciagron.v41i1.42609 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42609 |
identifier_str_mv |
10.4025/actasciagron.v41i1.42609 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42609/pdf http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42609/751375147162 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 41 (2019): Publicação Contínua; e42609 Acta Scientiarum. Agronomy; v. 41 (2019): Publicação Contínua; e42609 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1799305910653288448 |