Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/14108 |
Resumo: | The litter quality can alter soil aggregation, modifying the transformation dynamics and allocation of soil carbon (C) in different compartments. This study evaluated the aggregate stability and its relation with litter chemical characteristics, organic carbon and free light fraction (FLL) from the organic matter under three different types of vegetation covering: secondary forest (FS) and plantings of Mimosa Caesalpiniaefolia (PM) and Carapa guianenses (PA) with subsequently natural regeneration. Litter samples were characterized using polyfenols, lignin, suberine, tannin and holocelulose content and C/N relationship. Soil samples were collected in two depths (0-10 and 10-20 cm) and soil aggregation were estimate using mean weight diameter (DMP), mean geometric diameter (DMG) and index of aggregate stability (IEA) analysis . Soil samples in the same depths were also characterized using C and FLL content. The highest suberine and polyfenols content of the litter found in the areas FS and PM reduced the speed of residues decomposition in the soil causing larger FLL content in both coverings. Those compositions contributed to the stabilization of C in the mineral phase, because the highest C content was found in those areas. This fact is confirmed by the values of DMP, DMG and IEA among the areas. They are higher in the coverings, PM and FS. It can be concluded that the polyfenols and suberine content were decisive in the subdivision of C and in the aggregation of the soil in the areas of FS and PM. |
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Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestaisOrganic matter and aggregation of a planosol under different forest coveringsSerapilheira - QualidadeCarbono orgânico do soloAgregados do soloSolos florestaisMimosa caesalpinaefoliaCarapa guianensesSoil organic carbonSoil aggregationForest soilsThe litter quality can alter soil aggregation, modifying the transformation dynamics and allocation of soil carbon (C) in different compartments. This study evaluated the aggregate stability and its relation with litter chemical characteristics, organic carbon and free light fraction (FLL) from the organic matter under three different types of vegetation covering: secondary forest (FS) and plantings of Mimosa Caesalpiniaefolia (PM) and Carapa guianenses (PA) with subsequently natural regeneration. Litter samples were characterized using polyfenols, lignin, suberine, tannin and holocelulose content and C/N relationship. Soil samples were collected in two depths (0-10 and 10-20 cm) and soil aggregation were estimate using mean weight diameter (DMP), mean geometric diameter (DMG) and index of aggregate stability (IEA) analysis . Soil samples in the same depths were also characterized using C and FLL content. The highest suberine and polyfenols content of the litter found in the areas FS and PM reduced the speed of residues decomposition in the soil causing larger FLL content in both coverings. Those compositions contributed to the stabilization of C in the mineral phase, because the highest C content was found in those areas. This fact is confirmed by the values of DMP, DMG and IEA among the areas. They are higher in the coverings, PM and FS. It can be concluded that the polyfenols and suberine content were decisive in the subdivision of C and in the aggregation of the soil in the areas of FS and PM.A qualidade da serapilheira pode alterar a agregação do solo, modificando a dinâmica de transformação e alocação do carbono (C) do solo em diferentes compartimentos. Avaliou-se neste estudo, a estabilidade de agregados e sua relação com características químicas da serapilheira, com o carbono orgânico e a fração leve livre da matéria orgânica, sob três diferentes tipos de cobertura vegetal floresta secundária (FS) e plantios de Mimosa Caesalpinaefolia (PM) e Carapa guianenses (PA) com posterior regeneração natural. Amostras de serapilheira foram caracterizadas quanto aos teores de polifenóis, lignina, suberina, tanino, holocelulose e relação C/N. Coletaram-se amostras de terra em duas profundidades (0-10 e 10-20 cm) para estimativa da agregação através da análise do diâmetro médio ponderado (DMP), diâmetro médio geométrico (DMG) e índice de estabilidade dos agregados (IEA). Subamostras das mesmas profundidades foram ainda caracterizadas quanto aos teores de C e da fração leve livre (FLL). Os maiores teores de suberina e polifenóis da serapilheira, encontrados nas áreas FS e PM, reduziram a velocidade de decomposição dos resíduos no solo o que acarretou maiores teores da FLL em ambas as coberturas. Esses compostos contribuíram para a estabilização do C à fase mineral, pois os maiores teores de C foram encontrados nessas áreas. Essa afirmativa é confirmada pelos valores de DMP, DMG e IEA entre as áreas, que são maiores para as coberturas PM e FS. Os teores de polifenóis e suberina foram determinantes na compartimentação do C e agregação do solo das áreas de FS e PM.Universidade Federal de Lavras (UFLA)2015-09-132017-08-01T20:13:38Z2017-08-01T20:13:38Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfBOCHNER, J. K. et al. Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais. CERNE, Lavras, v. 14, n. 1, p. 46-53, jan./mar. 2008.http://repositorio.ufla.br/jspui/handle/1/141082317-63420104-7760reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/333/278Copyright (c) 2015 CERNEAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessBochner, Julia KishidaFernandes, Milton MarquesPereira, Marcos GervasioBalieiro, Fabiano de CarvalhoSantana, Ingrid Kely da Silva2021-07-11T22:54:10Zoai:localhost:1/14108Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-07-11T22:54:10Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais Organic matter and aggregation of a planosol under different forest coverings |
title |
Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais |
spellingShingle |
Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais Bochner, Julia Kishida Serapilheira - Qualidade Carbono orgânico do solo Agregados do solo Solos florestais Mimosa caesalpinaefolia Carapa guianenses Soil organic carbon Soil aggregation Forest soils |
title_short |
Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais |
title_full |
Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais |
title_fullStr |
Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais |
title_full_unstemmed |
Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais |
title_sort |
Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais |
author |
Bochner, Julia Kishida |
author_facet |
Bochner, Julia Kishida Fernandes, Milton Marques Pereira, Marcos Gervasio Balieiro, Fabiano de Carvalho Santana, Ingrid Kely da Silva |
author_role |
author |
author2 |
Fernandes, Milton Marques Pereira, Marcos Gervasio Balieiro, Fabiano de Carvalho Santana, Ingrid Kely da Silva |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Bochner, Julia Kishida Fernandes, Milton Marques Pereira, Marcos Gervasio Balieiro, Fabiano de Carvalho Santana, Ingrid Kely da Silva |
dc.subject.por.fl_str_mv |
Serapilheira - Qualidade Carbono orgânico do solo Agregados do solo Solos florestais Mimosa caesalpinaefolia Carapa guianenses Soil organic carbon Soil aggregation Forest soils |
topic |
Serapilheira - Qualidade Carbono orgânico do solo Agregados do solo Solos florestais Mimosa caesalpinaefolia Carapa guianenses Soil organic carbon Soil aggregation Forest soils |
description |
The litter quality can alter soil aggregation, modifying the transformation dynamics and allocation of soil carbon (C) in different compartments. This study evaluated the aggregate stability and its relation with litter chemical characteristics, organic carbon and free light fraction (FLL) from the organic matter under three different types of vegetation covering: secondary forest (FS) and plantings of Mimosa Caesalpiniaefolia (PM) and Carapa guianenses (PA) with subsequently natural regeneration. Litter samples were characterized using polyfenols, lignin, suberine, tannin and holocelulose content and C/N relationship. Soil samples were collected in two depths (0-10 and 10-20 cm) and soil aggregation were estimate using mean weight diameter (DMP), mean geometric diameter (DMG) and index of aggregate stability (IEA) analysis . Soil samples in the same depths were also characterized using C and FLL content. The highest suberine and polyfenols content of the litter found in the areas FS and PM reduced the speed of residues decomposition in the soil causing larger FLL content in both coverings. Those compositions contributed to the stabilization of C in the mineral phase, because the highest C content was found in those areas. This fact is confirmed by the values of DMP, DMG and IEA among the areas. They are higher in the coverings, PM and FS. It can be concluded that the polyfenols and suberine content were decisive in the subdivision of C and in the aggregation of the soil in the areas of FS and PM. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-09-13 2017-08-01T20:13:38Z 2017-08-01T20:13:38Z 2017-08-01 |
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 |
BOCHNER, J. K. et al. Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais. CERNE, Lavras, v. 14, n. 1, p. 46-53, jan./mar. 2008. http://repositorio.ufla.br/jspui/handle/1/14108 |
identifier_str_mv |
BOCHNER, J. K. et al. Matéria orgânica e agregação de um planossolo sob diferentes coberturas florestais. CERNE, Lavras, v. 14, n. 1, p. 46-53, jan./mar. 2008. |
url |
http://repositorio.ufla.br/jspui/handle/1/14108 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.cerne.ufla.br/site/index.php/CERNE/article/view/333/278 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 CERNE Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 CERNE Attribution 4.0 International http://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 Federal de Lavras (UFLA) |
publisher.none.fl_str_mv |
Universidade Federal de Lavras (UFLA) |
dc.source.none.fl_str_mv |
2317-6342 0104-7760 reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1784550047933792256 |