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	Provedor de dados Agronomy (1) Autor Cerri, Carlos Clemente; USP (1) Lima, Valmique Costa; UFPR (1) Melillo, Jerry; Marine Biological Laboratory Woods Hole - USA (1) Moraes, Jener Fernando Leite de; IAC (1) Neil, Christopher; Marine Biological Laboratory Woods Hole - USA (1) Steudler, Paul A.; Marine Biological Laboratory Woods Hole - USA (1) Volkoff, Boris; IRD (1) Mais... Palavra-chave 5.00.00.00-4 Ciências Agrárias Amazônia (1) Floresta tropical (1) Matéria orgânica (1) Pastagem 5.00.00.00-4 Ciências Agrárias (1) Ano 2002 (1) País Brazil (1) Idioma Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Soil carbon and nitrogen stocks following forest conversion to pasture in the Western Brazilian Amazon Basin Agronomy Moraes, Jener Fernando Leite de; IAC; Neil, Christopher; Marine Biological Laboratory Woods Hole - USA; Volkoff, Boris; IRD; Cerri, Carlos Clemente; USP; Melillo, Jerry; Marine Biological Laboratory Woods Hole - USA; Lima, Valmique Costa; UFPR; Steudler, Paul A.; Marine Biological Laboratory Woods Hole - USA. We examined two chronosequences of forest, 8-and 20-year-old pasture in Rondônia-Brazil, to investigate how land use change affects the soil carbon and nitrogen stocks and organic matter dynamics of surface soil (0 to 30 cm). Soil total carbon and nitrogen stocks increased in 20-year-old pasture compared with the original forest in one chronosequence but no changes were detected in the other chronosequence. Calculations of the contributions of forest - and pasture-derived carbon from soil ð13C values showed a general pattern of pasture carbon augmenting a slowly declining pool of carbon derived from the original forest. Soil ð13C values at 0 to 10 cm increased from -27 to -28 o/oo in the forests to approximately -20 o/oo in the 20-year-old... Palavras-chave: 5.00.00.00-4 Ciências Agrárias Amazônia; Matéria orgânica; Floresta tropical; Pastagem 5.00.00.00-4 Ciências Agrárias. Ano: 2002 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2383 Registros recuperados: 1 Primeira ... 1 ... Última

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