Carbon stocks and pools in relation to the texture of kaolinitic soils from the brazilian east coast

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorGomes, João Bosco Vasconcellos-
Autor(es): dc.creatorSilva, Carlos Alberto-
Autor(es): dc.creatorFerreira, Tamara Letícia de Azevedo-
Autor(es): dc.creatorFerreira, Mozart Martins-
Autor(es): dc.creatorInda, Alberto Vasconcellos-
Autor(es): dc.creatorCuri, Nilton-
Data de aceite: dc.date.accessioned2026-02-09T12:53:41Z-
Data de disponibilização: dc.date.available2026-02-09T12:53:41Z-
Data de envio: dc.date.issued2019-02-25-
Data de envio: dc.date.issued2019-02-25-
Data de envio: dc.date.issued2018-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/33033-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1170396-
Descrição: dc.descriptionExtremely 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.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherSociedade Brasileira de Ciência do Solo-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourceRevista Brasileira de Ciência do Solo-
Palavras-chave: dc.subjectDissolved organic C-
Palavras-chave: dc.subjectAggregate size distribution-
Palavras-chave: dc.subjectCoastal tablelands-
Palavras-chave: dc.subjectOrganic matter-mineral complexes-
Palavras-chave: dc.subjectKaolinitic soils-
Palavras-chave: dc.subjectC orgânico dissolvido-
Palavras-chave: dc.subjectDistribuição de tamanho agregado-
Palavras-chave: dc.subjectTabuleiros costeiros-
Palavras-chave: dc.subjectComplexos minerais-minerais orgânicos-
Palavras-chave: dc.subjectSolos cauliníticos-
Título: dc.titleCarbon stocks and pools in relation to the texture of kaolinitic soils from the brazilian east coast-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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