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Research Associate, Rangeland Ecology, Department of Grassland Science, College of Animal Science and Technology, China Agricultural University, Beijing 100193, People’s Republic of China
Professor, Rangeland Ecology, Department of Grassland Science, College of Animal Science and Technology, China Agricultural University, Beijing 100193, People’s Republic of China
Professor, Rangeland Ecology, Department of Animal, Wildlife, and Grassland Sciences, University of the Free State, PO Box 339, Bloemfontein 9300, South Africa
Supervisory Scientist, US Department of Agriculture–Agricultural Research Service Jornada Experimental Range, New Mexico State University, Las Cruces, NM 88003-0003, USA