1. State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment Northeast Normal University Changchun PR China
2. School of Ecology and Environmental Science Yunnan University Kunming PR China
3. Institute of Integrative Biology University of Liverpool Liverpool UK
4. School of Life Sciences Northeast Normal University Changchun PR China
5. Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station Northeast Normal University Changchun PR China
6. Northwest Land and Resources Research Center Shaanxi Normal Northwest University Xi'an PR China