Articles | Volume 12, issue 3
https://doi.org/10.5194/bg-12-817-2015
https://doi.org/10.5194/bg-12-817-2015
Research article
 | 
10 Feb 2015
Research article |  | 10 Feb 2015

Microbial respiration per unit microbial biomass depends on litter layer carbon-to-nitrogen ratio

M. Spohn

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Short summary
Soil microbial respiration is a central process in the terrestrial carbon (C) cycle. In this study, I tested the effect of the carbon-to-nitrogen (C:N) ratio of soil litter layers on microbial respiration in absolute terms and per unit microbial biomass C. For this purpose, a global dataset on microbial respiration per unit microbial biomass C – termed the metabolic quotient (qCO2) – was compiled form literature data. It was found that the qCO2 in the soil litter layers was positively correlated
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