FRACTION OF ORGANIC MATTER IN SOIL UNDER DECIDUOUS FORMATIONS IN THE NORTH OF MINAS
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2015 |
| Outros Autores: | , , , |
| Tipo de documento: | Artigo |
| Idioma: | por |
| Título da fonte: | Revista Caatinga |
| Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/3718 |
Resumo: | The dynamics of organic matter influences the main chemical, physical and biological processes in soil, and often determines their chemical behavior and fertility. Therefore, it is essential to quantify the fractions that make up the organic matter to the understanding of pedogenic processes that reflect or induce soil properties. The aim of the study was to evaluate the behavior of soil organic matter in different soil profiles under deciduous formations, through fractionation of organic matter and obtain their different oxidizable fractions. Ten soil profiles were described and collected in areas of deciduous formations in the state of Minas Gerais and Bahia. Chemical and physical analyzes were performed on each horizon. For organic matter fractions, the fractionation of humic substances and subsequent determination of carbon in each fraction was performed: humin (HUM - C) , fulvic acid (C - FAF) and humic acid (C - FAH) and calculated their relations and percentage of each fraction relative to total organic carbon (COT) , %FAF, %FAH, %HUM and %EA, beyond fractions oxidizable C in each evaluated horizon. Humic substances that make up the organic matter in the soil of seasonal dry forests profiles showed that this compartment MOS showed a predominance of the humin fraction, followed by humic acids and lower content of C, fulvic acids for most soils. However, the different fractions of oxidizable C could already point more labile fractions associated with surface horizons, and more recalcitrant to subsurface horizons. |
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FRACTION OF ORGANIC MATTER IN SOIL UNDER DECIDUOUS FORMATIONS IN THE NORTH OF MINASFRAÇÕES DA MATÉRIA ORGÂNICA EM SOLOS SOB FORMAÇÕES DECIDUAIS NO NORTE DE MINAS GERAISSemiarid. Dry forests. Organic carbon of soil.Semiárido. Matas Secas. Carbono orgânico do solo.The dynamics of organic matter influences the main chemical, physical and biological processes in soil, and often determines their chemical behavior and fertility. Therefore, it is essential to quantify the fractions that make up the organic matter to the understanding of pedogenic processes that reflect or induce soil properties. The aim of the study was to evaluate the behavior of soil organic matter in different soil profiles under deciduous formations, through fractionation of organic matter and obtain their different oxidizable fractions. Ten soil profiles were described and collected in areas of deciduous formations in the state of Minas Gerais and Bahia. Chemical and physical analyzes were performed on each horizon. For organic matter fractions, the fractionation of humic substances and subsequent determination of carbon in each fraction was performed: humin (HUM - C) , fulvic acid (C - FAF) and humic acid (C - FAH) and calculated their relations and percentage of each fraction relative to total organic carbon (COT) , %FAF, %FAH, %HUM and %EA, beyond fractions oxidizable C in each evaluated horizon. Humic substances that make up the organic matter in the soil of seasonal dry forests profiles showed that this compartment MOS showed a predominance of the humin fraction, followed by humic acids and lower content of C, fulvic acids for most soils. However, the different fractions of oxidizable C could already point more labile fractions associated with surface horizons, and more recalcitrant to subsurface horizons.A dinâmica da matéria orgânica influencia os principais processos químicos, físicos e biológicos nos solos e determina muitas vezes seu comportamento químico e sua fertilidade. É fundamental a quantificação das frações que compõem a matéria orgânica para a compreensão dos processos pedogenéticos que refletem ou induzem as propriedades dos solos. O objetivo do estudo foi avaliar o comportamento da matéria orgânica do solo de diferentes perfis de solos sob formações deciduais, por meio do fracionamento químico da matéria orgânica e obtenção de suas diferentes frações oxidáveis. Dez perfis de solo foram descritos e coletados em áreas de formações deciduais em municípios de Minas Gerais e Bahia. Foram realizadas análises químicas e físicas em cada horizonte. Para as frações da matéria orgânica foi realizado o desmembramento de substâncias húmicas e posterior determinação de carbono de cada fração, quais sejam, humina (C-HUM), ácido fúlvico (C-FAF) e ácido húmico (C-FAH), e calculadas suas relações e o percentual de cada fração em relação a C orgânico total (COT), %FAF, %FAH, %HUM e %EA, além das frações de C oxidável em cada horizonte avaliado. As substâncias húmicas que compõem a matéria orgânica dos solos de perfis de Florestas Estacionais Deciduais mostraram que este compartimento da MOS apresentou predomínio da fração humina, seguido dos ácidos húmicos e com menor teor de C, e os ácidos fúlvicos para a maioria dos solos. Já as diferentes frações de C oxidável puderam apontar frações mais lábeis associadas aos horizontes superficiais e mais recalcitrantes aos horizontes subsuperficiais.Universidade Federal Rural do Semi-Árido2015-11-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/371810.1590/1983-21252015v28n402rcREVISTA CAATINGA; Vol. 28 No. 4 (2015); 10-20Revista Caatinga; v. 28 n. 4 (2015); 10-201983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAporhttps://periodicos.ufersa.edu.br/caatinga/article/view/3718/pdf_301Copyright (c) 2023 Revista Caatingainfo:eu-repo/semantics/openAccessMartins, Carolina Malalada Costa, Liovando MarcianoSchaefer, Carlos Ernesto Gonçalves ReynaudSoares, Emanuelle Mercês Barrosdos Santos, Sara Ramos2023-07-03T16:34:52Zoai:ojs.periodicos.ufersa.edu.br:article/3718Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:08.496502Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
| dc.title.none.fl_str_mv |
FRACTION OF ORGANIC MATTER IN SOIL UNDER DECIDUOUS FORMATIONS IN THE NORTH OF MINAS FRAÇÕES DA MATÉRIA ORGÂNICA EM SOLOS SOB FORMAÇÕES DECIDUAIS NO NORTE DE MINAS GERAIS |
| title |
FRACTION OF ORGANIC MATTER IN SOIL UNDER DECIDUOUS FORMATIONS IN THE NORTH OF MINAS |
| spellingShingle |
FRACTION OF ORGANIC MATTER IN SOIL UNDER DECIDUOUS FORMATIONS IN THE NORTH OF MINAS Martins, Carolina Malala Semiarid. Dry forests. Organic carbon of soil. Semiárido. Matas Secas. Carbono orgânico do solo. |
| title_short |
FRACTION OF ORGANIC MATTER IN SOIL UNDER DECIDUOUS FORMATIONS IN THE NORTH OF MINAS |
| title_full |
FRACTION OF ORGANIC MATTER IN SOIL UNDER DECIDUOUS FORMATIONS IN THE NORTH OF MINAS |
| title_fullStr |
FRACTION OF ORGANIC MATTER IN SOIL UNDER DECIDUOUS FORMATIONS IN THE NORTH OF MINAS |
| title_full_unstemmed |
FRACTION OF ORGANIC MATTER IN SOIL UNDER DECIDUOUS FORMATIONS IN THE NORTH OF MINAS |
| title_sort |
FRACTION OF ORGANIC MATTER IN SOIL UNDER DECIDUOUS FORMATIONS IN THE NORTH OF MINAS |
| author |
Martins, Carolina Malala |
| author_facet |
Martins, Carolina Malala da Costa, Liovando Marciano Schaefer, Carlos Ernesto Gonçalves Reynaud Soares, Emanuelle Mercês Barros dos Santos, Sara Ramos |
| author_role |
author |
| author2 |
da Costa, Liovando Marciano Schaefer, Carlos Ernesto Gonçalves Reynaud Soares, Emanuelle Mercês Barros dos Santos, Sara Ramos |
| author2_role |
author author author author |
| dc.contributor.author.fl_str_mv |
Martins, Carolina Malala da Costa, Liovando Marciano Schaefer, Carlos Ernesto Gonçalves Reynaud Soares, Emanuelle Mercês Barros dos Santos, Sara Ramos |
| dc.subject.por.fl_str_mv |
Semiarid. Dry forests. Organic carbon of soil. Semiárido. Matas Secas. Carbono orgânico do solo. |
| topic |
Semiarid. Dry forests. Organic carbon of soil. Semiárido. Matas Secas. Carbono orgânico do solo. |
| description |
The dynamics of organic matter influences the main chemical, physical and biological processes in soil, and often determines their chemical behavior and fertility. Therefore, it is essential to quantify the fractions that make up the organic matter to the understanding of pedogenic processes that reflect or induce soil properties. The aim of the study was to evaluate the behavior of soil organic matter in different soil profiles under deciduous formations, through fractionation of organic matter and obtain their different oxidizable fractions. Ten soil profiles were described and collected in areas of deciduous formations in the state of Minas Gerais and Bahia. Chemical and physical analyzes were performed on each horizon. For organic matter fractions, the fractionation of humic substances and subsequent determination of carbon in each fraction was performed: humin (HUM - C) , fulvic acid (C - FAF) and humic acid (C - FAH) and calculated their relations and percentage of each fraction relative to total organic carbon (COT) , %FAF, %FAH, %HUM and %EA, beyond fractions oxidizable C in each evaluated horizon. Humic substances that make up the organic matter in the soil of seasonal dry forests profiles showed that this compartment MOS showed a predominance of the humin fraction, followed by humic acids and lower content of C, fulvic acids for most soils. However, the different fractions of oxidizable C could already point more labile fractions associated with surface horizons, and more recalcitrant to subsurface horizons. |
| publishDate |
2015 |
| dc.date.none.fl_str_mv |
2015-11-18 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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https://periodicos.ufersa.edu.br/caatinga/article/view/3718 10.1590/1983-21252015v28n402rc |
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https://periodicos.ufersa.edu.br/caatinga/article/view/3718 |
| identifier_str_mv |
10.1590/1983-21252015v28n402rc |
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por |
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por |
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https://periodicos.ufersa.edu.br/caatinga/article/view/3718/pdf_301 |
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Copyright (c) 2023 Revista Caatinga info:eu-repo/semantics/openAccess |
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Copyright (c) 2023 Revista Caatinga |
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openAccess |
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application/pdf |
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Universidade Federal Rural do Semi-Árido |
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Universidade Federal Rural do Semi-Árido |
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REVISTA CAATINGA; Vol. 28 No. 4 (2015); 10-20 Revista Caatinga; v. 28 n. 4 (2015); 10-20 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
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Universidade Federal Rural do Semi-Árido (UFERSA) |
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UFERSA |
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Revista Caatinga |
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Revista Caatinga |
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Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
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patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
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1797674024433614848 |