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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
14/11/2018 |
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Data da última atualização: |
14/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GOMES, J. B. V.; SILVA, C. A.; FERREIRA, T. L. de A.; FERREIRA, M. M.; INDA, A. V.; CURI, N. |
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Afiliação: |
JOAO BOSCO VASCONCELLOS GOMES, CNPF; Carlos Alberto Silva, UFLA; Tamara Letícia de Azevedo Ferreira, UFLA; Mozart Martins Ferreira, UFLA; Alberto Vasconcellos Inda, UFRGS; Nilton Curi, UFLA. |
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Título: |
Carbon stocks and pools in relation to the texture of kaolinitic soils from the Brazilian East Coast. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 42, e0170260, set. 2018. 15 p. |
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DOI: |
10.1590/18069657rbcs20170260 |
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Idioma: |
Inglês |
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Conteúdo: |
Extremely kaolinitic soils of Tertiary age elevations on the Brazilian east coast present a wide range of texture, which is recognized as one of the main factors controlling the soil organic matter contents. This study aimed to investigate the organic C storage of different compartments of kaolinitic soils. The studied soils had a wide particle size gradient, were under native forest vegetation, and located on Brazil?s eastern coast (Coruripe - CF, Umbaúba - UF, Nova Viçosa - VF, Sooretama - SF, and Itaboraí - IF). The forest cover of all sites allows to record soil properties reference values for a land use condition closer to that of the original sites. We determined soil organic C (SOC) content and SOC stock up to a depth of 1 m, C of topsoil (0.00-0.08 m), aggregate size classes, and dissolved organic carbon (DOC) of the soil surface horizon (A horizon). Soil C stocks at the 0.00-1.00 m depth ranged from 105 to 137 Mg ha-1 and were not regulated by soil texture. The SF soils stored more C up to a depth of 1 m, while lower mean C stocks were found for UF and CF soils. Soil texture was not a reliable index to predict the C contents of the aggregate size classes of the 0.00-0.08 m layer (within each class and in total, using equivalent soil mass of the classes). The most clayey soils had a high percentage of 2-4 mm aggregates and, as a consequence, high aggregate stability indices, which are positively correlated to silt plus clay contents of the soil surface horizon. The proportion of DOC in relation to the total organic C of the surface soil horizon was high for IF and UF areas, which are the less preserved forest fragments among all studied fragments. MenosExtremely kaolinitic soils of Tertiary age elevations on the Brazilian east coast present a wide range of texture, which is recognized as one of the main factors controlling the soil organic matter contents. This study aimed to investigate the organic C storage of different compartments of kaolinitic soils. The studied soils had a wide particle size gradient, were under native forest vegetation, and located on Brazil?s eastern coast (Coruripe - CF, Umbaúba - UF, Nova Viçosa - VF, Sooretama - SF, and Itaboraí - IF). The forest cover of all sites allows to record soil properties reference values for a land use condition closer to that of the original sites. We determined soil organic C (SOC) content and SOC stock up to a depth of 1 m, C of topsoil (0.00-0.08 m), aggregate size classes, and dissolved organic carbon (DOC) of the soil surface horizon (A horizon). Soil C stocks at the 0.00-1.00 m depth ranged from 105 to 137 Mg ha-1 and were not regulated by soil texture. The SF soils stored more C up to a depth of 1 m, while lower mean C stocks were found for UF and CF soils. Soil texture was not a reliable index to predict the C contents of the aggregate size classes of the 0.00-0.08 m layer (within each class and in total, using equivalent soil mass of the classes). The most clayey soils had a high percentage of 2-4 mm aggregates and, as a consequence, high aggregate stability indices, which are positively correlated to silt plus clay contents of the soil surface horizon. The p... Mostrar Tudo |
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Palavras-Chave: |
Aggregate size distribution; Argilito caolítico; Coastal tablelands; Dissolved organic C; Estoque de carbono; Organic matter-mineral complexes. |
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Thesagro: |
Solo. |
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Thesaurus Nal: |
Soil. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/186008/1/2018-J.Bosco-RBCS-Carbon.pdf
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Marc: |
LEADER 02601naa a2200289 a 4500
001 2099369
005 2018-11-14
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1590/18069657rbcs20170260$2DOI
100 1 $aGOMES, J. B. V.
245 $aCarbon stocks and pools in relation to the texture of kaolinitic soils from the Brazilian East Coast.$h[electronic resource]
260 $c2018
520 $aExtremely kaolinitic soils of Tertiary age elevations on the Brazilian east coast present a wide range of texture, which is recognized as one of the main factors controlling the soil organic matter contents. This study aimed to investigate the organic C storage of different compartments of kaolinitic soils. The studied soils had a wide particle size gradient, were under native forest vegetation, and located on Brazil?s eastern coast (Coruripe - CF, Umbaúba - UF, Nova Viçosa - VF, Sooretama - SF, and Itaboraí - IF). The forest cover of all sites allows to record soil properties reference values for a land use condition closer to that of the original sites. We determined soil organic C (SOC) content and SOC stock up to a depth of 1 m, C of topsoil (0.00-0.08 m), aggregate size classes, and dissolved organic carbon (DOC) of the soil surface horizon (A horizon). Soil C stocks at the 0.00-1.00 m depth ranged from 105 to 137 Mg ha-1 and were not regulated by soil texture. The SF soils stored more C up to a depth of 1 m, while lower mean C stocks were found for UF and CF soils. Soil texture was not a reliable index to predict the C contents of the aggregate size classes of the 0.00-0.08 m layer (within each class and in total, using equivalent soil mass of the classes). The most clayey soils had a high percentage of 2-4 mm aggregates and, as a consequence, high aggregate stability indices, which are positively correlated to silt plus clay contents of the soil surface horizon. The proportion of DOC in relation to the total organic C of the surface soil horizon was high for IF and UF areas, which are the less preserved forest fragments among all studied fragments.
650 $aSoil
650 $aSolo
653 $aAggregate size distribution
653 $aArgilito caolítico
653 $aCoastal tablelands
653 $aDissolved organic C
653 $aEstoque de carbono
653 $aOrganic matter-mineral complexes
700 1 $aSILVA, C. A.
700 1 $aFERREIRA, T. L. de A.
700 1 $aFERREIRA, M. M.
700 1 $aINDA, A. V.
700 1 $aCURI, N.
773 $tRevista Brasileira de Ciência do Solo, Viçosa, MG$gv. 42, e0170260, set. 2018. 15 p.
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Embrapa Florestas (CNPF) |
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