1Department of Environmental Engineering, Texas A&M University - Kingsville, Kingsville, TX 78363, USA.
2State Key Laboratory of Vegetation and Environmental Change. Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China.
3Department of Palaeobotany and Palynology, Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences, Nanjing 210008, China.
4Institute of Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
5Institude of Applied Ecology, Chinese Academy of science, Shenyang 110016, China.
6Yantai Institute of Coastal Zone Research for Sustainable Development, Chinese Academy of Sciences, Yantai, 264003, China.
7Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
Email: [email protected]