| Affiliation: | 1. College of Resources and Environmental Sciences/Key Laboratory of Sustainable Utilization of Soil Resources in the Commodity Grain Bases in Jilin Province, Jilin Agricultural University, Changchun, China;2. Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun, China;3. Key Laboratory of Wetland Ecology and Environment, Heilongjiang Xingkai Lacustrine Wetland Ecosystem National Field Scientific Observation and Research Station, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China;4. Department of Wildlife, California State Polytechnic University Humboldt, Arcata, California, USA |
