Short-term effects of labile organic C addition on soil microbial response to temperature in a temperate steppe

It remains unclear how soil microbes respond to labile organic carbon (LOC) inputs and temperature sensitivity (Q10) of matter (SOM) decomposition is affected by LOC in a short-term. In this study, 13C-labeled glucose was added pristine grassland at four temperatures (10, 15, 20, 25 °C), the immediate utilization native SOM measured minutely We found that addition stimulated decomposition, elevated enhanced intensity microbial response addition. The ratio between respiration derived from increased with higher temperature, more for respiration. Additionally, Q10 than SOM. Overall, these findings emphasize important role C cycles.