Organic matter in areas under secondary forests and pasture.
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1081160 http://dx.doi.org/10.1590/01047760201723032333 |
Resumo: | The objective of this study was to evaluate the soil carbon stock (Stock C) and bulk density, the chemical and granulometric fractions of the organic matter and the isotopic signal of the soil δ13C in forest fragments and a mixed managed pasture (MMP). The study was carried out in the municipality of Pinheiral, State of Rio de Janeiro. The evaluated areas were: fragment of secondary forest in initial stage (SFIS) with 20 years of regeneration; fragment of secondary forest in intermediate stage (SFINS), with 25 years of regeneration; advanced secondary forest fragment (SFAS) with 60 years of regeneration and mixed pasture managed (MHP). The attributes related to soil carbon showed significant responses to the effects of land degradation / recovery processes, especially for the following indicators: total organic carbon, organic matter stock and particulate organic matter. No significant alterations for humic substances, and prevalence of the humin fraction was found. The most significant changes in δ13C values occurred up to the depth of 60 cm. In the grassland area, at 0-10 cm, 67% of the carbon stock comes from C4 plants, reducing in the subsequent layers. In SFINS and SFAS areas, at 0-10 cm, the contribution of C3 plants was significant, with minor changes in depth. |
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Organic matter in areas under secondary forests and pasture.Matéria orgânica em áreas de florestas secundárias e pastagem.Organic carbonSoil carbon fractionsIsotopic compositionAtlantic forestThe objective of this study was to evaluate the soil carbon stock (Stock C) and bulk density, the chemical and granulometric fractions of the organic matter and the isotopic signal of the soil δ13C in forest fragments and a mixed managed pasture (MMP). The study was carried out in the municipality of Pinheiral, State of Rio de Janeiro. The evaluated areas were: fragment of secondary forest in initial stage (SFIS) with 20 years of regeneration; fragment of secondary forest in intermediate stage (SFINS), with 25 years of regeneration; advanced secondary forest fragment (SFAS) with 60 years of regeneration and mixed pasture managed (MHP). The attributes related to soil carbon showed significant responses to the effects of land degradation / recovery processes, especially for the following indicators: total organic carbon, organic matter stock and particulate organic matter. No significant alterations for humic substances, and prevalence of the humin fraction was found. The most significant changes in δ13C values occurred up to the depth of 60 cm. In the grassland area, at 0-10 cm, 67% of the carbon stock comes from C4 plants, reducing in the subsequent layers. In SFINS and SFAS areas, at 0-10 cm, the contribution of C3 plants was significant, with minor changes in depth.CARLOS EDUARDO GABRIEL MENEZES, INSTITUTO FEDERAL DE EDUCAÇÃO, PINHEIRAL, RJ; RONI FERNANDES GUARESCHI, UFRRJ; MARCOS GERVASIO PEREIRA, UFRRJ; LÚCIA HELENA CUNHA ANJOS, UFRRJ; MARIA ELIZABETH FERNANDES CORREIA, CNPAB; FABIANO DE CARVALHO BALIEIRO, CNPS; MARISA DE CÁSSIA PICCOLO, USP, PIRACICABA SP.MENEZES, C. E. G.GUARESCHI, R. F.PEREIRA, M. G.ANJOS, L. H. C.CORREIA, M. E. F.BALIEIRO, F. de C.PICCOLO, M. de C.2017-11-30T23:27:24Z2017-11-30T23:27:24Z2017-11-3020172017-12-28T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleCERNE, Lavras, v. 23, n. 3, July/Sept. 2017.2317-6342http://www.alice.cnptia.embrapa.br/alice/handle/doc/1081160http://dx.doi.org/10.1590/01047760201723032333enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-11-30T23:27:30Zoai:www.alice.cnptia.embrapa.br:doc/1081160Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-11-30T23:27:30falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-11-30T23:27:30Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Organic matter in areas under secondary forests and pasture. Matéria orgânica em áreas de florestas secundárias e pastagem. |
title |
Organic matter in areas under secondary forests and pasture. |
spellingShingle |
Organic matter in areas under secondary forests and pasture. MENEZES, C. E. G. Organic carbon Soil carbon fractions Isotopic composition Atlantic forest |
title_short |
Organic matter in areas under secondary forests and pasture. |
title_full |
Organic matter in areas under secondary forests and pasture. |
title_fullStr |
Organic matter in areas under secondary forests and pasture. |
title_full_unstemmed |
Organic matter in areas under secondary forests and pasture. |
title_sort |
Organic matter in areas under secondary forests and pasture. |
author |
MENEZES, C. E. G. |
author_facet |
MENEZES, C. E. G. GUARESCHI, R. F. PEREIRA, M. G. ANJOS, L. H. C. CORREIA, M. E. F. BALIEIRO, F. de C. PICCOLO, M. de C. |
author_role |
author |
author2 |
GUARESCHI, R. F. PEREIRA, M. G. ANJOS, L. H. C. CORREIA, M. E. F. BALIEIRO, F. de C. PICCOLO, M. de C. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
CARLOS EDUARDO GABRIEL MENEZES, INSTITUTO FEDERAL DE EDUCAÇÃO, PINHEIRAL, RJ; RONI FERNANDES GUARESCHI, UFRRJ; MARCOS GERVASIO PEREIRA, UFRRJ; LÚCIA HELENA CUNHA ANJOS, UFRRJ; MARIA ELIZABETH FERNANDES CORREIA, CNPAB; FABIANO DE CARVALHO BALIEIRO, CNPS; MARISA DE CÁSSIA PICCOLO, USP, PIRACICABA SP. |
dc.contributor.author.fl_str_mv |
MENEZES, C. E. G. GUARESCHI, R. F. PEREIRA, M. G. ANJOS, L. H. C. CORREIA, M. E. F. BALIEIRO, F. de C. PICCOLO, M. de C. |
dc.subject.por.fl_str_mv |
Organic carbon Soil carbon fractions Isotopic composition Atlantic forest |
topic |
Organic carbon Soil carbon fractions Isotopic composition Atlantic forest |
description |
The objective of this study was to evaluate the soil carbon stock (Stock C) and bulk density, the chemical and granulometric fractions of the organic matter and the isotopic signal of the soil δ13C in forest fragments and a mixed managed pasture (MMP). The study was carried out in the municipality of Pinheiral, State of Rio de Janeiro. The evaluated areas were: fragment of secondary forest in initial stage (SFIS) with 20 years of regeneration; fragment of secondary forest in intermediate stage (SFINS), with 25 years of regeneration; advanced secondary forest fragment (SFAS) with 60 years of regeneration and mixed pasture managed (MHP). The attributes related to soil carbon showed significant responses to the effects of land degradation / recovery processes, especially for the following indicators: total organic carbon, organic matter stock and particulate organic matter. No significant alterations for humic substances, and prevalence of the humin fraction was found. The most significant changes in δ13C values occurred up to the depth of 60 cm. In the grassland area, at 0-10 cm, 67% of the carbon stock comes from C4 plants, reducing in the subsequent layers. In SFINS and SFAS areas, at 0-10 cm, the contribution of C3 plants was significant, with minor changes in depth. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-11-30T23:27:24Z 2017-11-30T23:27:24Z 2017-11-30 2017 2017-12-28T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
CERNE, Lavras, v. 23, n. 3, July/Sept. 2017. 2317-6342 http://www.alice.cnptia.embrapa.br/alice/handle/doc/1081160 http://dx.doi.org/10.1590/01047760201723032333 |
identifier_str_mv |
CERNE, Lavras, v. 23, n. 3, July/Sept. 2017. 2317-6342 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1081160 http://dx.doi.org/10.1590/01047760201723032333 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
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Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
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EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503445596602368 |