1. Center for Ecological and Environmental Sciences Northwestern Polytechnical University Xi'an 710072 China
2. State Key Laboratory of Loess and Quaternary Geology (SKLLQG) Key Laboratory of Aerosol Chemistry and Physics Institute of Earth Environment Chinese Academy of Sciences Xi'an 710061 China
3. University of Chinese Academy of Sciences Beijing 100049 China
4. Department of Microbiology and Plant Biology University of Oklahoma Norman OK 73019 USA
5. Center for Earth System Science Tsinghua University Beijing 100084 China
6. Department of Agriculture and Environmental Sciences Tennessee State University Nashville TN 37209 USA
7. Tiantong National Field Observation Station for Forest Ecosystem School of Ecological and Environmental Sciences East China Normal University Shanghai 200062 China
8. Center for Global Change and Ecological Forecasting East China Normal University Shanghai 200062 China
9. Institute of Global Environmental Change Xi'an Jiaotong University Xi'an 710049 China
10. Department of Biological Sciences University of Arkansas Fayetteville AR 72701 USA
11. State Key Laboratory of Urban and Regional Ecology Research Center for Eco‐Environmental Sciences Chinese Academy of Sciences Beijing 100085 China
12. Synthesis Research Center of Chinese Ecosystem Research Network Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China