1. Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and AgroecologyChinese Academy of Sciences Changchun PR China
2. Science and Technology Department of Jilin Province, Jilin Provincial Joint Key Laboratory of Changbai Mountain Wetland and Ecology Changchun PR China
3. State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Institute for Peat and Mire ResearchNortheast Normal University Changchun PR China
4. Key Laboratory of Geographical Processes and Ecological Security in Changbai MountainsMinistry of Education Changchun PR China