N2O emissions from plants are reduced under photosynthetic activity

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Title: N2O emissions from plants are reduced under photosynthetic activity
Authors: Schützenmeister, Klaus
Meurer, Katharina H. E.
Gronwald, Marco
Hartmann, Antonia B. D.
Gansert, Dirk
Jungkunst, Hermann F.
ORCID of the author: https://orcid.org/0000-0002-9807-9401
Abstract: New plant functions in the exchange of greenhouse gases between ecosystems and atmosphere have recently been discovered. We tested whether photosynthetic activity has an effect on N2O emission rates from incubated plant–soil systems. Two laboratory experiments were performed. One to unravel possible effect of photosynthetic activity on the net N2O ecosystem exchange for two species (beech and ash saplings). The other to account for possible effects from rhizosphere and aboveground plant parts separately (ash sapling only). Total N2O emissions from both plant and plant–soil systems were significantly lower under light than in darkness (31%–65%). The photosynthetic effect only applied to the aboveground plant parts. #Underlying processes have now to be unraveled to improve our understanding of ecosystem functioning. This will improve modeling and budgeting of greenhouse gas exchanges between ecosystems and the atmosphere.
Citations: Plant-Environment Interactions. Wiley, 2020;00, P. 1–9
URL: https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-202006043081
Subject Keywords: N2O; photosynthesis; ash (Fraxinus excelsior L.); beech (Fagus sylvatica L.); rhizosphere; plant‐mediated
Issue Date: 2-Jun-2020
License name: Attribution 4.0 International
License url: http://creativecommons.org/licenses/by/4.0/
Type of publication: Einzelbeitrag in einer wissenschaftlichen Zeitschrift [article]
Appears in Collections:UOS Hochschulschriften

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