Data/hora: 08/06/2024 15:41:38

Biblioteca(s): 	Embrapa Agrossilvipastoril; Embrapa Solos.	
Data corrente: 	15/01/2018	
Data da última atualização: 	29/01/2018	
Autoria: 	MATOS, E. da S.; CONCEIÇÃO, M. C. G. da; BIDONE, E. G.; RODRIGUES, R. de A. R.; CORDEIRO, R. C.	
Afiliação: 	EDUARDO DA SILVA MATOS, CPAMT; MARCELA C. G. DA CONCEIÇÃO, UFF; EDISON G. BIDONE, UFF; RENATO DE ARAGAO RIBEIRO RODRIGUES, CNPS; RENATO C. CORDEIRO, UFF.	
Título: 	Soil organic matter fractions as a short-term indicator of carbon turnover under agricultural systems.	
Ano de publicação: 	2017	
Fonte/Imprenta: 	In: ENCONTRO BRASILEIRO DE SUBSTÂNCIAS HÚMICAS E MATÉRIA ORGÂNICA NATURAL, 12., 2017, Sinop. Matéria orgânica e suas múltiplas funcionalidades: livro de resumos. Sinop: [s.n.], 2017. p. 128-131.	
Idioma: 	Inglês	
Conteúdo: 	Integrated crop-livestock-forest (ICLF) systems has been considered as an important strategy to enhance C sequestration. However, changes in soil C due to agricultural management practices, in general, are observed in long-term experiments. Our objective was to investigate short-term impacts on soil organic matter under different management systems in the Cerrado/Amazonia region. Treatments corresponded to ICLF, No-tillage, Pasture and Eucalyptus plantation. Soil was sampled in 2014, in the 0-5, 5-10 and 10-30 cm layers for quantification of light- and heavy-fraction C stocks as well as their C isotopic composition (DELTA 13C). After three years established, all evaluated treatments showed similar values of light- and heavy-fraction C stocks to those observed under Native Forest in the 0-30 cm layer. Under Pasture and ILCF treatments, we observed that most of C of the light-fraction was substituted by pasturederived C in the uppermost soil layer (0-5 cm). Despite no differences in heavyand light-fraction C, the application of 13C stable isotope technique seems to be an important tool to evaluate short-term C turnover under agricultural systems.	
Palavras-Chave: 	Agricultura conservacionista; Carbono do solo; Heavy-fraction; Integração lavoura-pecuária-floresta; Integrated crop-livestock-forest; Light-fraction.	
Thesaurus Nal: 	Agricultural conservation practice; Carbon sequestration.	
Categoria do assunto: 	P Recursos Naturais, Ciências Ambientais e da Terra	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/171788/1/2017-cpamt-eduardo-matos-soil-organic-matter-fraction-short-term-indicator.pdf
http://ainfo.cnptia.embrapa.br/digital/bitstream/item/171043/1/2017-111.pdf	
Registro original: 	Embrapa Agrossilvipastoril (CPAMT)	
Exemplares: 	CNPS - (19778-1) - UPC - AA - DD -  -  - 2018.00045 - DIS
CPAMT - (934-1) - UPC - AA - DD -  -  -  - DIS