Data/hora: 11/06/2024 04:27:36

Provedor de dados: | 90
País: | Brazil
Título: | Carbon Stocks in Compartments of Soil Organic Matter 31 Years after Substitution of Native Cerrado Vegetation by Agroecosystems
Autores: | Ferreira,Eloisa Aparecida Belleza; Bustamante,Mercedes Maria da Cunha; Resck,Dimas Vital Siqueira; Figueiredo,Cícero Célio de; Pinto,Alexandre de Siqueira; Malaquias,Juaci Vitória.
Data: | 2016-01-01
Ano: | 2016
Palavras-chave: | Conventional tillage; No-tillage; Microbial biomass; Particulate organic matter.
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 %.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100507
Editor: | Sociedade Brasileira de Ciência do Solo
Relação: | 10.1590/18069657rbcs20150059
Formato: | text/html
Fonte: | Revista Brasileira de Ciência do Solo  v.40 2016
Fonte: | info:eu-repo/semantics/openAccess