1. Research Institute of Subtropical ForestryChinese Academy of Forestry, Hangzhou Zhejiang 311400 China
2. Key Lab of Comprehensive and Highly Efficient Utilization of Salt Lake ResourcesQinghai Institute of Salt Lakes, Chinese Academy of Sciences Xining, 810008 China
3. Qinghai Engineering and Technology Research Center of Comprehensive Utilization of Salt Lake Resources Xining, 810008 China
4. University of Chinese Academy of Sciences Beijing, 100049 China