Articles | Volume 17, issue 12
https://doi.org/10.5194/bg-17-3045-2020
https://doi.org/10.5194/bg-17-3045-2020
Research article
 | 
17 Jun 2020
Research article |  | 17 Jun 2020

Using respiration quotients to track changing sources of soil respiration seasonally and with experimental warming

Caitlin Hicks Pries, Alon Angert, Cristina Castanha, Boaz Hilman, and Margaret S. Torn

Data sets

Blodgett Forest CA Warming Experiment Soil Gas Well Data March 2014 to June 2017 C. Hicks Pries, A. Angert, C. Castanha, B. Hilman, and M. S. Torn https://doi.org/10.15485/1596312

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Short summary
The apparent respiration quotient (ARQ) changes according to which substrates microbes consume, allowing sources of soil respiration to be traced. In a forest soil warming experiment, ARQ had a strong seasonal pattern that reflected a shift from respiration being fueled by sugars and organic acids derived from roots during the growing season to respiration being fueled by dead microbes during winter. ARQ values also changed with experimental warming.
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