1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
2. State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China
3. Anambra-Imo River Basin Development Authority, Agbala 460109, Imo State, Nigeria
4. School of Resource and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
5. Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton University, Ottawa, ON K1S 5B6, Canada
6. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Beijing 100101, China