Data/hora: 19/06/2024 19:19:27

Biblioteca(s): | Embrapa Solos.
Data corrente: | 16/01/2008
Data da última atualização: | 27/10/2021
Autoria: | ABOIM, M. C. R.; COUTINHO, H. L. C.; PEIXOTO, R. S.; BARBOSA, J. C.; ROSADO, A. S.
Afiliação: | Marcela C. R. Aboim, Embrapa Agrobiologia; HEITOR LUIZ DA COSTA COUTINHO, CNPS; Raquel S. Peixoto, UFRJ; Joyce C. Barbosa, UFRJ; Alexandre S. Rosado, UFRJ.
Título: | Soil bacterial community structure and soil quality in a slash-and-burn cultivation system in Southeastern Brazil.
Ano de publicação: | 2008
Fonte/Imprenta: | Applied Soil Ecology, v. 38, n. 2, p. 100-108, Feb. 2008.
DOI: | https://doi.org/10.1016/j.apsoil.2007.09.004
Idioma: | Inglês
Conteúdo: | This paper presents a novel analytical framework to assess soil quality, incorporating bacterial community structure data derived from PCR-DGGE analysis into a principal component analysis, along with a total of 23 other physical, chemical, and biotic soil variables. This framework was applied to a slash-and-burn agricultural system in the Atlantic forest region of Rio de Janeiro. Cropped fields had significantly reduced soil aggregation indices and organic carbon contents, as well as increased impacts on their soil bacterial community structure, relative to forest fragments. The results demonstrate the applicability of the soil quality analytical framework proposed, and reveal that traditional shifting cultivation practices in the area studied are compatible with conservation of soil quality, provided that the fallow plots are maintained for periods longer than 5 years.
Palavras-Chave: | DGGE; Diversidade microbiana; Indicadores de qualidade do solo; Qualidade do solo.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Solos (CNPS)
Exemplares: | CNPS - (12796-1) - UPC - AP - DD -  -  - 2008.00016 - DIS