1. Center for Watershed Ecology Institute of Life Science and Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of Education Nanchang University Nanchang 330031 China
2. The Ministry of Education Key Laboratory for Biodiversity Sciences and Ecological Engineering Institute of Biodiversity Science Institute of Botany Fudan University Shanghai 200438 China
3. National Ecosystem Research Station of Jiangxi Poyang Lake Wetland Nanchang 330038 China