Articles | Volume 12, issue 16
Biogeosciences, 12, 5143–5160, 2015
https://doi.org/10.5194/bg-12-5143-2015
Biogeosciences, 12, 5143–5160, 2015
https://doi.org/10.5194/bg-12-5143-2015

Research article 31 Aug 2015

Research article | 31 Aug 2015

Environmental forcing does not induce diel or synoptic variation in the carbon isotope content of forest soil respiration

D. R. Bowling et al.

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Short summary
Soil respiration and its stable isotopes were studied in a subalpine forest. There was strong diel variability in soil efflux but not in the isotope content of soil efflux or CO2 from biological activity in the soil. Following rain, soil efflux increased, but the isotope content of these fluxes did not change. Temporal variation in the isotope content of soil efflux was unrelated to environmental variables. Results confirmed established theory regarding diffusive soil gas transport.
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