Acknowledgments
We thank Professor Erland Bååth for his help in MIDI Sherlock Microbial Identification System. We acknowledge Qingmin Pan, Jiaoyan Ying, and Huasong Chen for their help with field work. This study was supported by the Chinese National Key Development Program for Basic Research (2015CB954201), the Natural Science Foundation of China (31320103916,31570450, and 31100335), and the Youth Innovation Promotion Association CAS