Junyi Liang¹, Qintana Si¹, Yue Yu², Kelou Chen², Pengshuai Shao³, Paul Dijkstra⁴, Bruce A Hungate⁵, Xiao Jun Allen Liu⁶ and Yiqi Luo⁷, (1)China Agricultural University, Department of Grassland Resources and Ecology, Beijing, China, (2)China Agricultural University, Beijing, China, (3)Binzhou University, Binzhou, China, (4)Northern Arizona Univ, Flagstaff, AZ, United States, (5)Northern Arizona University, Department of Biological Sciences and the Center for Ecosystem Science and Society, Flagstaff, United States, (6)Oklahoma State University Institute of Technology, Norman, United States, (7)Cornell University, School of Integrative Plant Science, Ithaca, United States