Fracionamento de silício em solos com diferentes históricos de cultivo
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca de teses e dissertações da Universidade de Passo Fundo (BDTD UPF) |
Texto Completo: | http://tede.upf.br:8080/jspui/handle/tede/2456 |
Resumo: | Anthropogenic action directly interferes with our ecosystems. Although silicon dioxide (SiO2) is one of the most abundant compounds on Earth, there are several chemical forms found for this element in the soil and the effects of human action on the dynamics of silicon (Si) are still poorly understood. Thus, the objective of the present work was to evaluate whether the extraction and export of Si from the soil by annual agricultural cultivation over the years influences the content of the element in its different chemical forms present in the soil. In this sense, the levels of silicon in its different forms present in soils used for agricultural production for different times (2, 8 and 40 years) were quantified in comparison with the native field (control situation). The quantified forms of Si were: mobile fraction, adsorbed, associated with soil organic matter, occluded in Fe and Al sesquioxides and amorphous silica. The relationship of soil Si forms with possible changes in soil particle size and mineralogy was also studied through particle size and x-ray diffraction (XRD) analysis. The results obtained were analyzed using the linear model and the means were compared using the Tukey test (p < 0.05) of error probability when necessary. The proportion of Si forms is, in decreasing order: amorphous silica > Si bound to soil organic matter > Si adsorbed in the exchange complex > Si occluded in soil oxides > Mobile Si. The mobile Si fraction had its highest amount in the 40-year-old crop compared to the native field. The native grassland showed the highest amount of Si bound to soil organic matter and amorphous silica. Soil particles were larger for the native grassland. The cultivation times evaluated showed no change in soil mineralogy. It can be concluded that the evaluated agricultural system, over the years, changes the biogeochemical cycle of Si. Our results indicate that there is a need for soil fertility management that considers the Si element and its cycling. Also, the use of the soil with cultures accelerates the process of desilication by the extraction of the element and, consequently, the increase of soil weathering. |
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Bortoluzzi, Edson CampanholaCPF: 69335885053http://lattes.cnpq.br/9676584972338298CPF: 02329063008http://lattes.cnpq.br/2511750531941338Silva, Helena Trindade da2023-03-22T00:19:24Z2022-05-27SILVA, Helena Trindade da. Fracionamento de silício em solos com diferentes históricos de cultivo. 2022. 90 f. Dissertação (Mestrado em Agronomia) - Universidade de Passo Fundo, Passo Fundo, RS, 2022.http://tede.upf.br:8080/jspui/handle/tede/2456Anthropogenic action directly interferes with our ecosystems. Although silicon dioxide (SiO2) is one of the most abundant compounds on Earth, there are several chemical forms found for this element in the soil and the effects of human action on the dynamics of silicon (Si) are still poorly understood. Thus, the objective of the present work was to evaluate whether the extraction and export of Si from the soil by annual agricultural cultivation over the years influences the content of the element in its different chemical forms present in the soil. In this sense, the levels of silicon in its different forms present in soils used for agricultural production for different times (2, 8 and 40 years) were quantified in comparison with the native field (control situation). The quantified forms of Si were: mobile fraction, adsorbed, associated with soil organic matter, occluded in Fe and Al sesquioxides and amorphous silica. The relationship of soil Si forms with possible changes in soil particle size and mineralogy was also studied through particle size and x-ray diffraction (XRD) analysis. The results obtained were analyzed using the linear model and the means were compared using the Tukey test (p < 0.05) of error probability when necessary. The proportion of Si forms is, in decreasing order: amorphous silica > Si bound to soil organic matter > Si adsorbed in the exchange complex > Si occluded in soil oxides > Mobile Si. The mobile Si fraction had its highest amount in the 40-year-old crop compared to the native field. The native grassland showed the highest amount of Si bound to soil organic matter and amorphous silica. Soil particles were larger for the native grassland. The cultivation times evaluated showed no change in soil mineralogy. It can be concluded that the evaluated agricultural system, over the years, changes the biogeochemical cycle of Si. Our results indicate that there is a need for soil fertility management that considers the Si element and its cycling. Also, the use of the soil with cultures accelerates the process of desilication by the extraction of the element and, consequently, the increase of soil weathering.A ação antrópica interfere diretamente nos nossos ecossistemas. Apesar de o dióxido de silício (SiO2) ser um dos compostos mais abundantes da Terra, diversas são as formas químicas encontradas desse elemento no solo e os efeitos da ação antrópica sobre a dinâmica de silício (Si) ainda são poucos conhecidos. Dessa forma, o objetivo do presente trabalho foi avaliar se a extração e exportação de Si do solo pelo cultivo agrícola anual ao longo dos anos influencia no teor do elemento nas suas diferentes formas químicas presente no solo. Nesse sentido, foi quantificados os teores de silício em suas diferentes formas presentes em solos utilizados para produção agrícola por diferentes tempos (2, 8 e 40 anos) confrontando-se com o campo nativo (situação testemunha). As formas de Si quantificado foram: fração móvel, adsorvida, associada à matéria orgânica do solo, oclusa em sesquióxidos de Fe e Al e sílica amorfa. Também se estudou a relação das formas de Si do solo com as possíveis alterações de tamanho de partícula do solo e a mineralogia, através de análises de tamanho de partícula e difração de raio-x (DRX). Os resultados obtidos foram analisados através do modelo linear e as médias foram comparadas utilizando-se o teste de Tukey (p Si ligado à matéria orgânica do solo > Si adsorvido no complexo de troca > Si ocluso em óxidos do solo > Si móvel. A fração Si móvel possuiu sua maior quantidade na lavoura de 40 anos comparada ao campo nativo. O campo nativo apresentou a maior quantidade de Si ligado à matéria orgânica do solo e sílica amorfa. As partículas de solo apresentaram maior tamanho para o campo nativo. Os tempos de cultivo avaliados não mostraram alteração na mineralogia do solo. Pode-se concluir que o sistema agrícola avaliado, ao longo dos anos altera o ciclo biogeoquímico do Si. Nossos resultados indicam haver a necessidade de manejo da fertilidade do solo que considere o elemento Si e sua ciclagem. Ainda, o uso do solo com culturas acelera o processo de dessilicação pela extração do elemento e por consequência o aumento do intemperismo do solo.Submitted by Jucelei Domingues (jucelei@upf.br) on 2023-03-22T00:19:24Z No. of bitstreams: 1 2022HelenaTrindadeSilva.pdf: 1652839 bytes, checksum: d79f93ce87fc514e2be6b8e126af9869 (MD5)Made available in DSpace on 2023-03-22T00:19:24Z (GMT). No. of bitstreams: 1 2022HelenaTrindadeSilva.pdf: 1652839 bytes, checksum: d79f93ce87fc514e2be6b8e126af9869 (MD5) Previous issue date: 2022-05-27Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade de Passo FundoPrograma de Pós-Graduação em AgronomiaUPFBrasilFaculdade de Agronomia e Medicina Veterinária – FAMVSilícioSolos - AbsorçãoMineralogia do soloCobertura dos solosCIENCIAS AGRARIAS::AGRONOMIAFracionamento de silício em solos com diferentes históricos de cultivoSilicon fractionation in soils with different cultivation historiesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis562406611703505429050050060060053202200503672799-30911387149076039072075167498588264571info:eu-repo/semantics/openAccessreponame:Biblioteca de teses e dissertações da Universidade de Passo Fundo (BDTD UPF)instname:Universidade de Passo Fundo (UPF)instacron:UPFORIGINAL2022HelenaTrindadeSilva.pdf2022HelenaTrindadeSilva.pdfapplication/pdf1652839http://tede.upf.br:8080/jspui/bitstream/tede/2456/2/2022HelenaTrindadeSilva.pdfd79f93ce87fc514e2be6b8e126af9869MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82053http://tede.upf.br:8080/jspui/bitstream/tede/2456/1/license.txt1ea0bfd7af108792edd8df732bb777fcMD51tede/24562023-03-22 21:11:55.685oai:tede.upf.br: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Biblioteca Digital de Teses e DissertaçõesPUBhttp://tede.upf.br/oai/requestbiblio@upf.br || bio@upf.br || cas@upf.br || car@upf.br || lve@upf.br || sar@upf.br || sol@upf.br || upfmundi@upf.br || jucelei@upf.bropendoar:2023-03-23T00:11:55Biblioteca de teses e dissertações da Universidade de Passo Fundo (BDTD UPF) - Universidade de Passo Fundo (UPF)false |
dc.title.por.fl_str_mv |
Fracionamento de silício em solos com diferentes históricos de cultivo |
dc.title.alternative.eng.fl_str_mv |
Silicon fractionation in soils with different cultivation histories |
title |
Fracionamento de silício em solos com diferentes históricos de cultivo |
spellingShingle |
Fracionamento de silício em solos com diferentes históricos de cultivo Silva, Helena Trindade da Silício Solos - Absorção Mineralogia do solo Cobertura dos solos CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Fracionamento de silício em solos com diferentes históricos de cultivo |
title_full |
Fracionamento de silício em solos com diferentes históricos de cultivo |
title_fullStr |
Fracionamento de silício em solos com diferentes históricos de cultivo |
title_full_unstemmed |
Fracionamento de silício em solos com diferentes históricos de cultivo |
title_sort |
Fracionamento de silício em solos com diferentes históricos de cultivo |
author |
Silva, Helena Trindade da |
author_facet |
Silva, Helena Trindade da |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Bortoluzzi, Edson Campanhola |
dc.contributor.advisor1ID.fl_str_mv |
CPF: 69335885053 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9676584972338298 |
dc.contributor.authorID.fl_str_mv |
CPF: 02329063008 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/2511750531941338 |
dc.contributor.author.fl_str_mv |
Silva, Helena Trindade da |
contributor_str_mv |
Bortoluzzi, Edson Campanhola |
dc.subject.por.fl_str_mv |
Silício Solos - Absorção Mineralogia do solo Cobertura dos solos |
topic |
Silício Solos - Absorção Mineralogia do solo Cobertura dos solos CIENCIAS AGRARIAS::AGRONOMIA |
dc.subject.cnpq.fl_str_mv |
CIENCIAS AGRARIAS::AGRONOMIA |
description |
Anthropogenic action directly interferes with our ecosystems. Although silicon dioxide (SiO2) is one of the most abundant compounds on Earth, there are several chemical forms found for this element in the soil and the effects of human action on the dynamics of silicon (Si) are still poorly understood. Thus, the objective of the present work was to evaluate whether the extraction and export of Si from the soil by annual agricultural cultivation over the years influences the content of the element in its different chemical forms present in the soil. In this sense, the levels of silicon in its different forms present in soils used for agricultural production for different times (2, 8 and 40 years) were quantified in comparison with the native field (control situation). The quantified forms of Si were: mobile fraction, adsorbed, associated with soil organic matter, occluded in Fe and Al sesquioxides and amorphous silica. The relationship of soil Si forms with possible changes in soil particle size and mineralogy was also studied through particle size and x-ray diffraction (XRD) analysis. The results obtained were analyzed using the linear model and the means were compared using the Tukey test (p < 0.05) of error probability when necessary. The proportion of Si forms is, in decreasing order: amorphous silica > Si bound to soil organic matter > Si adsorbed in the exchange complex > Si occluded in soil oxides > Mobile Si. The mobile Si fraction had its highest amount in the 40-year-old crop compared to the native field. The native grassland showed the highest amount of Si bound to soil organic matter and amorphous silica. Soil particles were larger for the native grassland. The cultivation times evaluated showed no change in soil mineralogy. It can be concluded that the evaluated agricultural system, over the years, changes the biogeochemical cycle of Si. Our results indicate that there is a need for soil fertility management that considers the Si element and its cycling. Also, the use of the soil with cultures accelerates the process of desilication by the extraction of the element and, consequently, the increase of soil weathering. |
publishDate |
2022 |
dc.date.issued.fl_str_mv |
2022-05-27 |
dc.date.accessioned.fl_str_mv |
2023-03-22T00:19:24Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SILVA, Helena Trindade da. Fracionamento de silício em solos com diferentes históricos de cultivo. 2022. 90 f. Dissertação (Mestrado em Agronomia) - Universidade de Passo Fundo, Passo Fundo, RS, 2022. |
dc.identifier.uri.fl_str_mv |
http://tede.upf.br:8080/jspui/handle/tede/2456 |
identifier_str_mv |
SILVA, Helena Trindade da. Fracionamento de silício em solos com diferentes históricos de cultivo. 2022. 90 f. Dissertação (Mestrado em Agronomia) - Universidade de Passo Fundo, Passo Fundo, RS, 2022. |
url |
http://tede.upf.br:8080/jspui/handle/tede/2456 |
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por |
language |
por |
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5624066117035054290 |
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500 500 600 600 |
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53202200503672799 |
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-3091138714907603907 |
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2075167498588264571 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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Universidade de Passo Fundo |
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Programa de Pós-Graduação em Agronomia |
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UPF |
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Brasil |
dc.publisher.department.fl_str_mv |
Faculdade de Agronomia e Medicina Veterinária – FAMV |
publisher.none.fl_str_mv |
Universidade de Passo Fundo |
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