Mycorrhiza-dependent drivers of the positive rhizosphere effects on the temperature sensitivity of soil microbial respiration in subtropical forests

Tree roots and their fungal symbionts mediate the response of rhizosphere soil organic carbon (SOC) decomposition to climate warming, specifically the temperature sensitivity of soil microbial respiration (Q10), which is a critical parameter for projecting the magnitude of terrestrial soil C-climate feedbacks. However, the intensity of the rhizosphere effects (RE; rhizosphere soils vs. bulk soils) on Q10 in forest soils associated with different mycorrhizal groups and their seasonal dynamics are poorly understood. Here, we selected nine tree species associated with either arbuscular mycorrhizal (AM) or ectomycorrhizal (EM) fungi in subtropical forests of China and collected bulk soil and rhizosphere soil in both the warm and cold seasons to explore the RE on Q10, respectively. Our results showed a positive RE on Q10 (ranging from 20.1% to 87.5%) for all tree species, independent of the season. For EM tree species, the RE on Q10 was 64.5% higher in the warm season and 44.4% higher in the..., , , # Mycorrhiza-dependent drivers of the positive rhizosphere effects on the temperature sensitivity of soil microbial respiration in subtropical forests

[https://doi.org/10.5061/dryad.h9w0vt4t3](https://doi.org/10.5061/dryad.h9w0vt4t3)

## Description of the data and file structure

| RE, rhizosphere effects; e.g., RE on TN indicated the rhizosphere effect on soil total nitrogen |
| :---------------------------------------------------------------------------------------------- |
| Q10, temperature sensitivity of SOC decomposition |
| TN, soil total nitrogen content |
| SOC, soil organic carbon content |
| WEOC, water-extractable organic carbon content |
| LOC, labile organic carbon content |
| ROC, recalcitran...