Seasonal dynamics and profiles of soil NO concentrations in a temperate forest

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dc.contributor.authorMedinets, Sergiy V.
dc.contributor.authorGasche, R.
dc.contributor.authorKiese, R.
dc.contributor.authorRennenberg, H.
dc.contributor.authorButterbach-Bahl, K.
dc.contributor.authorМедінець, Сергій Володимирович
dc.contributor.authorМединец, Сергей Владимирович
dc.date.accessioned2020-09-15T10:07:48Z
dc.date.available2020-09-15T10:07:48Z
dc.date.issued2019
dc.description.abstractAims Soils are known to be significant sources of atmospheric nitric oxide (NO), a key compound in atmospheric chemistry. NO is a key regulating substance for inter- and intra-species signalling and competition and affects plant growth and soilmicrobialmetabolisms. However, little is known about NO concentration in soils and production of NO in the soil profile. Methods Here we report on soil NO concentrations down to 65 cm soil depth and soil surface flux measurements over a 15 months period in subdaily resolution. This is supplemented by information on aerobic and anaerobic NO production in various soil layers of a spruce stand in SW Germany. Results NO concentrations showed a clear seasonality with highest concentrations of up to 800 nmol mol−1 (or part per billion in volume mixing ratio; ppbv) at the interface between the organic Of-Oh sub-layers in the summer. NO concentrations in the mineral subsoil (−65 cm) were approx. One order of magnitude lower than in the organic layer. Dynamic changes of soil NO concentrations were closely correlated with soil surface NO fluxes. Differences in soil NO concentrations across the soil profile reflected differences in aerobic and anaerobic NO production potential. Conclusion The importance of such high NO concentrations for soil microbial and plant physiological processes remains unclear, but should be addressed in future research in order to improve our understanding of microbe-microbe and plant-microbe interactions.uk_UA
dc.identifier.citationSpringer. P. 1-14.uk_UA
dc.identifier.doihttps://doi.org/10.1007/s11104-019-04305-5
dc.identifier.urihttps://dspace.onu.edu.ua/handle/123456789/28593
dc.language.isoenuk_UA
dc.subjectNitric oxide.uk_UA
dc.subjectSurface flux
dc.subjectSoil gas concentration
dc.subjectSoil profile
dc.subjectPlant interaction
dc.titleSeasonal dynamics and profiles of soil NO concentrations in a temperate forestuk_UA
dc.typeArticleuk_UA
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