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Descripción
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| Greenhouse gas emissions (GHG) from legume-based cropping systems have raised considerable doubt observing a high variability associated to climate, soil conditions and agricultural practices. In addition, few studies have evaluated the possibilities of the long-term tillage systems to mitigate GHG under rainfed agro-ecosystems. Therefore, this study aimed to evaluate the long-term effect (>17 years) of three tillage systems (i.e. no tillage (NT), minimum tillage (MT) and conventional tillage (CT)) on nitrous oxide (N2O), methane (CH4) and carbon dioxide (CO2) fluxes under a rainfed vetch crop in a soil from Central Spain. Denitrification gene abundances (nitrite reducers) were also measured in order to explain differences in potential denitrification on these three tillage systems. Long-term tillage practices changed soil properties by affecting denitrification potential (i.e dissolved organic carbon and soil aeration) and the abundance of nirS and nirK genes. | |
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Internacional
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JCR del ISI
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Título de la revista
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Soil Biology & Biochemistry |
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ISSN
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0038-0717 |
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Factor de impacto JCR
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3,504 |
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Información de impacto
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Datos JCR del año 2011 |
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DOI
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Número de revista
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