Carbon Stocks in Compartments of Soil Organic Matter 31 Years after Substitution of Native Cerrado Vegetation by Agroecosystems.
Contribuinte(s) |
ELOISA APARECIDA BELLEZA FERREIRA, CPAC; MERCEDES MARIA DA CUNHA BUSTAMANTE, UNB; DIMAS VITAL SIQUEIRA RESCK, CPAC; CÍCERO CÉLIO DE FIGUEIREDO, UNB; ALEXANDRE DE SIQUEIRA PINTO, UFSE; JUACI VITORIA MALAQUIAS, CPAC. |
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Data(s) |
2016
24/08/2016
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Resumo |
ABSTRACT: Changes in carbon stocks in different compartments of soil organic matter of a clayey Latossolo Vermelho Distrófico (Typic Haplustox), caused by the substitution of native savanna vegetation (cerrado sensu stricto) by agroecosystems, were assessed after 31 years of cultivation. Under native vegetation, a stock of 164.5 Mg ha-1 C was estimated in the 0.00-1.00 m layer. After 31 years of cultivation, these changes in soil C stocks were detected to a depth of 0.60 m. In the case of substitution of cerrado sensu stricto by no-tillage soybean-corn rotation, a reduction of at least 11 % of the soil C pools was observed. However, the adoption of no-tillage as an alternative to tillage with a moldboard plow (conventional system) reduced CO2 emissions by up to 12 %. 2016 |
Identificador |
35506 |
Idioma(s) |
en |
Publicador |
Revista Brasileira de Ciência do Solo, Viçosa, v. 40, April 2016. |
Relação |
Embrapa Cerrados - Artigo em periódico indexado (ALICE) |
Palavras-Chave | #Preparo convencional #Biomassa microbiana #Matéria orgânica particulada #Plantio direto #Cerrado #Solo |
Tipo |
Artigo em periódico indexado (ALICE) |