| Registro completo |
| Provedor de dados: |
Rev. Bras. Ciênc. Solo
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| País: |
Brazil
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| Título: |
Carbon Stocks in Compartments of Soil Organic Matter 31 Years after Substitution of Native Cerrado Vegetation by Agroecosystems
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| 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
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| Data: |
2016-01-01
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| Ano: |
2016
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| Palavras-chave: |
Conventional tillage
No-tillage
Microbial biomass
Particulate organic matter
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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 %.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100507
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| Editor: |
Sociedade Brasileira de Ciência do Solo
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| Relação: |
10.1590/18069657rbcs20150059
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Ciência do Solo v.40 2016
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| Direitos: |
info:eu-repo/semantics/openAccess
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