Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4382292 | Applied Soil Ecology | 2014 | 9 Pages |
Abstract
Mixed models, with sites treated as random factors, indicated that the potential denitrification activity and the size of the nirS community differed significantly between non-cultivated and PAP soils. Soil properties were separated into dynamic and inherent according to their variance components. The former had the largest part of their variances explained by agricultural management, while the latter were more affected by edaphic-climatic differences between sites. Both inherent and dynamic properties could explain the changes in potential denitrification activity, whereas changes in the abundance of denitrifiers were only related to inherent soil properties. Results from principal components analysis suggested site-specific response of most dynamic soil properties. Among the latter, only aggregate stability indices were strongly associated with potential denitrification activity after removing the geographical effect.
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Authors
Silvina M. Rosa, Filipe Behrends Kraemer, Marcelo A. Soria, Leandro D. Guerrero, Héctor J.M. Morrás, Eva L.M. Figuerola, Leonardo Erijman,