Weathering features of a remineralizer in soil under different land uses
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/26985 |
Resumo: | The objective of this work was to analyze the mineralogical, morphological, and compositional modifications resulting from the weathering of diabase grains buried into soil under different land uses for up to 378 days. Samples of comminuted diabase were put into polyester bags and buried into soil under corn crop, elephant grass, and woods, being unburied and evaluated after four time periods. The samples of the remineralizer (RM) were analyzed by X-ray diffractometry, total chemical analysis, scanning electron microscopy, and Al (Alo and Ald) and Fe (Fed and Feo) contents extracted by sodium dithionite-citrate-bicarbonate (DCB) and ammonium oxalate (AAO) solutions. Plagioclases and pyroxenes were the most weathered minerals in all three land uses and showed the same pattern of elemental gains and losses. The characterization of Fe and Al solubility in DCB and AAO showed that the greatest change in these elements was from the lithogenic and crystalline to the pedogenic and amorphous phase, when compared with their total content. Plagioclases and pyroxenes were the most weathered minerals, and Fe and Al show a great transfer from the crystalline to the amorphous phase, with values up to 26 and 175, respectively, for the ratios between bags with RM/Feo and RM-control and bags with RM/Alo and RM-control. |
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Weathering features of a remineralizer in soil under different land usesCaracterísticas de intemperismo de um remineralizador em solo sob diferentes usos da terraenhanced weathering; mineral dissolution; rock powderintemperismo acelerado; dissolução mineral; pó de rochaThe objective of this work was to analyze the mineralogical, morphological, and compositional modifications resulting from the weathering of diabase grains buried into soil under different land uses for up to 378 days. Samples of comminuted diabase were put into polyester bags and buried into soil under corn crop, elephant grass, and woods, being unburied and evaluated after four time periods. The samples of the remineralizer (RM) were analyzed by X-ray diffractometry, total chemical analysis, scanning electron microscopy, and Al (Alo and Ald) and Fe (Fed and Feo) contents extracted by sodium dithionite-citrate-bicarbonate (DCB) and ammonium oxalate (AAO) solutions. Plagioclases and pyroxenes were the most weathered minerals in all three land uses and showed the same pattern of elemental gains and losses. The characterization of Fe and Al solubility in DCB and AAO showed that the greatest change in these elements was from the lithogenic and crystalline to the pedogenic and amorphous phase, when compared with their total content. Plagioclases and pyroxenes were the most weathered minerals, and Fe and Al show a great transfer from the crystalline to the amorphous phase, with values up to 26 and 175, respectively, for the ratios between bags with RM/Feo and RM-control and bags with RM/Alo and RM-control.O objetivo deste trabalho foi analisar as modificações mineralógicas, morfológicas e composicionais resultantes do intemperismo de grãos de diabásio enterrados em solo sob diferentes usos da terra por até 378 dias. Amostras de diabásio cominuído foram colocadas em sacos de poliéster e enterradas em solo sob cultivo de milho, capim-elefante e floresta, tendo sido desenterradas e avaliadas após quatro períodos. As amostras do remineralizador (RM) foram analisadas por difratometria de raios X, análise química total, microscopia eletrônica de varredura, e teores de Al (Ald e Alo) e Fe (Fed e Feo) extraídos com soluções de ditionito-citrato-bicarbonato (DCB) e amônio oxalato (AAO). Os plagioclásios e os piroxênios intemperizaram mais rápido nos três tipos de uso da terra, e mostraram o mesmo padrão de ganhos e perdas no balanço de massa de elementos. A caracterização das formas de Fe e Al em DCB e AAO mostrou que a maior mudança destes elementos foi da fase litogênica e cristalina para a secundária e amorfa, em comparação aos seus teores totais. Os plagioclásios e os piroxênios foram os minerais mais alterados, e Fe e Al apresentam grande transferência entre a fase cristalina e amorfa, com valores de até 26 e 175, respectivamente, para as razões entre sacos com RM/Feo e RM-controle e sacos com RM/Alo e RM-controle.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCoordenação de Aperfeiçoamento de Pessoal de Nível SuperiorConselho Nacional de Desenvolvimento Científico e TecnológicoGodoy family, owners of the Paineira Branca farmCoordenação de Aperfeiçoamento de Pessoal de Nível SuperiorConselho Nacional de Desenvolvimento Científico e Tecnológicofamília Godoy, proprietários da fazenda Paineira BrancaSilva, Rafael Cipriano daFerreira, Edilene PereiraAzevedo, Antonio Carlos de2022-05-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/26985Pesquisa Agropecuaria Brasileira; V.56, Jan./Dec., 2021: Publicação contínua em volume anual; e01442Pesquisa Agropecuária Brasileira; V.56, Jan./Dec., 2021: Publicação contínua em volume anual; e014421678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/26985/14939Direitos autorais 2022 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2022-05-18T18:27:35Zoai:ojs.seer.sct.embrapa.br:article/26985Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2022-05-18T18:27:35Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Weathering features of a remineralizer in soil under different land uses Características de intemperismo de um remineralizador em solo sob diferentes usos da terra |
title |
Weathering features of a remineralizer in soil under different land uses |
spellingShingle |
Weathering features of a remineralizer in soil under different land uses Silva, Rafael Cipriano da enhanced weathering; mineral dissolution; rock powder intemperismo acelerado; dissolução mineral; pó de rocha |
title_short |
Weathering features of a remineralizer in soil under different land uses |
title_full |
Weathering features of a remineralizer in soil under different land uses |
title_fullStr |
Weathering features of a remineralizer in soil under different land uses |
title_full_unstemmed |
Weathering features of a remineralizer in soil under different land uses |
title_sort |
Weathering features of a remineralizer in soil under different land uses |
author |
Silva, Rafael Cipriano da |
author_facet |
Silva, Rafael Cipriano da Ferreira, Edilene Pereira Azevedo, Antonio Carlos de |
author_role |
author |
author2 |
Ferreira, Edilene Pereira Azevedo, Antonio Carlos de |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Conselho Nacional de Desenvolvimento Científico e Tecnológico Godoy family, owners of the Paineira Branca farm Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Conselho Nacional de Desenvolvimento Científico e Tecnológico família Godoy, proprietários da fazenda Paineira Branca |
dc.contributor.author.fl_str_mv |
Silva, Rafael Cipriano da Ferreira, Edilene Pereira Azevedo, Antonio Carlos de |
dc.subject.por.fl_str_mv |
enhanced weathering; mineral dissolution; rock powder intemperismo acelerado; dissolução mineral; pó de rocha |
topic |
enhanced weathering; mineral dissolution; rock powder intemperismo acelerado; dissolução mineral; pó de rocha |
description |
The objective of this work was to analyze the mineralogical, morphological, and compositional modifications resulting from the weathering of diabase grains buried into soil under different land uses for up to 378 days. Samples of comminuted diabase were put into polyester bags and buried into soil under corn crop, elephant grass, and woods, being unburied and evaluated after four time periods. The samples of the remineralizer (RM) were analyzed by X-ray diffractometry, total chemical analysis, scanning electron microscopy, and Al (Alo and Ald) and Fe (Fed and Feo) contents extracted by sodium dithionite-citrate-bicarbonate (DCB) and ammonium oxalate (AAO) solutions. Plagioclases and pyroxenes were the most weathered minerals in all three land uses and showed the same pattern of elemental gains and losses. The characterization of Fe and Al solubility in DCB and AAO showed that the greatest change in these elements was from the lithogenic and crystalline to the pedogenic and amorphous phase, when compared with their total content. Plagioclases and pyroxenes were the most weathered minerals, and Fe and Al show a great transfer from the crystalline to the amorphous phase, with values up to 26 and 175, respectively, for the ratios between bags with RM/Feo and RM-control and bags with RM/Alo and RM-control. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-05-13 |
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/26985 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/26985 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/26985/14939 |
dc.rights.driver.fl_str_mv |
Direitos autorais 2022 Pesquisa Agropecuária Brasileira info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Direitos autorais 2022 Pesquisa Agropecuária Brasileira |
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.56, Jan./Dec., 2021: Publicação contínua em volume anual; e01442 Pesquisa Agropecuária Brasileira; V.56, Jan./Dec., 2021: Publicação contínua em volume anual; e01442 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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