Articles | Volume 14, issue 5
Biogeosciences, 14, 1111–1122, 2017
https://doi.org/10.5194/bg-14-1111-2017
Biogeosciences, 14, 1111–1122, 2017
https://doi.org/10.5194/bg-14-1111-2017

Research article 09 Mar 2017

Research article | 09 Mar 2017

Symbiosis revisited: phosphorus and acid buffering stimulate N2 fixation but not Sphagnum growth

Eva van den Elzen et al.

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Latest update: 17 May 2021
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Short summary
Peatlands are important because they sequester large amounts of carbon, for which nitrogen is needed. In peatlands dominated by peat mosses, atmospheric nitrogen is fixed by associated microorganisms. We here show for the first time experimentally that phosphorus availability and acid buffering, both showing large variations among peatlands, can explain the strong differences reported for nitrogen fixation. This improves our understanding of peatland functioning in relation to global change.
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