Biogeosciences
Biogeosciences
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Articles | Volume 15, issue 16
Articles | Volume 15, issue 16
https://doi.org/10.5194/bg-15-4943-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-15-4943-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 16
Research article
 | 
22 Aug 2018
Research article |  | 22 Aug 2018

Modeling rhizosphere carbon and nitrogen cycling in Eucalyptus plantation soil

Rafael Vasconcelos Valadares, Júlio César Lima Neves, Maurício Dutra Costa, Philip James Smethurst, Luiz Alexandre Peternelli, Guilherme Luiz Jesus, Reinaldo Bertola Cantarutti, and Ivo Ribeiro Silva

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Short summary
Eucalyptus plantations produce large extensions of fine roots that release energy-rich organic compounds into the soil, causing an increase in the number of microorganisms that degrade soil organic matter and release N to the trees, in the so-called rhizosphere priming effect. In order to estimate the quantitative importance of this phenomena, a mechanistic model was elaborated – the ForPRAN. It has been estimated that rhizosphere cycling can supply about 24.6 % of N accumulated in Eucalyptus.
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