Physical quality of bauxite tailing after a decade of environmental recovery

Detalhes bibliográficos
Autor(a) principal: Dias, Luiz Eduardo
Data de Publicação: 2018
Outros Autores: Guimarães, Lorena Abdalla de Oliveira Prata, Rocha, Genelício Crusoé, Assis, Igor Rodrigues de, Fernandes, Raphael Bragança Alves
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://dx.doi.org/10.5935/1806-6690.20180022
https://locus.ufv.br//handle/123456789/26624
Resumo: O link não se refere ao artigo. Favor corrigir.
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spelling Dias, Luiz EduardoGuimarães, Lorena Abdalla de Oliveira PrataRocha, Genelício CrusoéAssis, Igor Rodrigues deFernandes, Raphael Bragança Alves2019-08-16T14:31:21Z2019-08-16T14:31:21Z2018-0418066690http://dx.doi.org/10.5935/1806-6690.20180022https://locus.ufv.br//handle/123456789/26624O link não se refere ao artigo. Favor corrigir.Os rejeitos da lavagem da bauxita produzidos em Porto Trombetas, Pará, no interior da Amazônia brasileira, possuem características químicas e físicas limitantes ao desenvolvimento de plantas, o que dificulta a revegetação dos tanques onde são depositados. Este trabalho, realizado em condições de campo, avaliou a qualidade física desses rejeitos após uma década de práticas de recuperação. Três tratamentos foram avaliados: sem aplicação de insumos e plantio de mudas (T1) e dois níveis de fertilização, um com as menores (T2) e outro com as maiores (T3) doses de calcário e adubos associadas ao plantio de mudas de espécies arbóreas. Decorridos dez anos de experimentação, a resistência à penetração (RP) e a umidade do substrato, até 60 cm de profundidade, foram avaliadas e o Intervalo Hídrico Ótimo (IHO), curva de retenção de água (CRA) e distribuição de poros por classes de diâmetro foram determinados e calculados. Após uma década de recuperação ambiental, foi possível verificar diferenças nas características físicas do rejeito em função das diferentes formas de revegetação. A umidade no perfil do substrato, o IHO, a CRA e a distribuição de poros foram indicadores sensíveis às variações na qualidade física dos substratos. A calagem, a adubação e o plantio de mudas são necessários para a revegetação e melhoria da qualidade física do rejeito. O tratamento T3 é a melhor intervenção identificada até o momento para a revegetação dos tanques. A ausência de adubação e plantio impossibilita a revegetação, mesmo existindo fontes de propágulos nas proximidades.Tailings from bauxite washing produced in Porto Trombetas, Pará state, a Brazilian Amazon region, have chemical and physical characteristics limiting the development of plants, which hinders to revegetate the tanks where they are deposited. This study was carried out under field conditions, and aimed to assess the physical quality of these tailings after a decade of recovery practices. Three treatments were assessed: no application of inputs and planting of seedlings (T1) and two levels of fertilization, one with lower (T2) and other with higher (T3) doses of limestone and fertilizers associated with planting tree seedlings. After ten years of experimentation, penetration resistance (PR) and substrate moisture up to 60 cm depth were assessed and the least limiting water range (LLWR), water retention curve (WRC), and pore size distribution were determined and calculated. After a decade of environmental recovery, differences in physical characteristics were observed in the tailings due to different revegetation modes. Moisture in the substrate profile, LLWR, WRC, and pore size distribution were sensitive indicators to variations in substrate physical quality. Liming, fertilization, and planting of seedlings are necessary for revegetation and improvement of the physical quality of tailings. Treatment T3 was the best intervention identified so far for tank revegetation. The absence of fertilization and planting precludes revegetation even with sources of propagules nearby.engRevista Ciência Agronômicav. 49, n. 02, p. 192- 200, abr./ jun. 2018RevegetationMiningNatural regenerationRevegetaçãoMineraçãoRegeneração naturalPhysical quality of bauxite tailing after a decade of environmental recoveryinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdfartigoapplication/pdf241653https://locus.ufv.br//bitstream/123456789/26624/1/artigo.pdfbc3f3f49a09ac7c875a1d09848188395MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/26624/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/266242019-08-16 11:49:10.972oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452019-08-16T14:49:10LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.en.fl_str_mv Physical quality of bauxite tailing after a decade of environmental recovery
title Physical quality of bauxite tailing after a decade of environmental recovery
spellingShingle Physical quality of bauxite tailing after a decade of environmental recovery
Dias, Luiz Eduardo
Revegetation
Mining
Natural regeneration
Revegetação
Mineração
Regeneração natural
title_short Physical quality of bauxite tailing after a decade of environmental recovery
title_full Physical quality of bauxite tailing after a decade of environmental recovery
title_fullStr Physical quality of bauxite tailing after a decade of environmental recovery
title_full_unstemmed Physical quality of bauxite tailing after a decade of environmental recovery
title_sort Physical quality of bauxite tailing after a decade of environmental recovery
author Dias, Luiz Eduardo
author_facet Dias, Luiz Eduardo
Guimarães, Lorena Abdalla de Oliveira Prata
Rocha, Genelício Crusoé
Assis, Igor Rodrigues de
Fernandes, Raphael Bragança Alves
author_role author
author2 Guimarães, Lorena Abdalla de Oliveira Prata
Rocha, Genelício Crusoé
Assis, Igor Rodrigues de
Fernandes, Raphael Bragança Alves
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Dias, Luiz Eduardo
Guimarães, Lorena Abdalla de Oliveira Prata
Rocha, Genelício Crusoé
Assis, Igor Rodrigues de
Fernandes, Raphael Bragança Alves
dc.subject.pt-BR.fl_str_mv Revegetation
Mining
Natural regeneration
Revegetação
Mineração
Regeneração natural
topic Revegetation
Mining
Natural regeneration
Revegetação
Mineração
Regeneração natural
description O link não se refere ao artigo. Favor corrigir.
publishDate 2018
dc.date.issued.fl_str_mv 2018-04
dc.date.accessioned.fl_str_mv 2019-08-16T14:31:21Z
dc.date.available.fl_str_mv 2019-08-16T14:31:21Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.5935/1806-6690.20180022
https://locus.ufv.br//handle/123456789/26624
dc.identifier.issn.none.fl_str_mv 18066690
identifier_str_mv 18066690
url http://dx.doi.org/10.5935/1806-6690.20180022
https://locus.ufv.br//handle/123456789/26624
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartofseries.pt-BR.fl_str_mv v. 49, n. 02, p. 192- 200, abr./ jun. 2018
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.publisher.none.fl_str_mv Revista Ciência Agronômica
publisher.none.fl_str_mv Revista Ciência Agronômica
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