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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 14, issue 1
Biogeosciences, 14, 241–255, 2017
https://doi.org/10.5194/bg-14-241-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 14, 241–255, 2017
https://doi.org/10.5194/bg-14-241-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 17 Jan 2017

Research article | 17 Jan 2017

Contributions of microbial activity and ash deposition to post-fire nitrogen availability in a pine savanna

Cari D. Ficken and Justin P. Wright
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Cited articles  
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To evaluate different mechanisms underlying nitrogen (N) pulses that occur following fires in pyrogenic US savannas, we coupled field measures of soil N cycling with soil N isotopic signatures. We found that neither ash deposition nor changes to microbial activity could account for observed N pulse. We hypothesize that changes to plant uptake may contribute to the post-fire N pulses. We encourage future work to explore the role of plant activity on temporal nutrient availability dynamics.
To evaluate different mechanisms underlying nitrogen (N) pulses that occur following fires in...
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