[1] Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, 4888 Shengbei St, Changchun 130102, Jilin, Peoples R China
[2] Fujian Agr & Forestry Univ, Coll Comp & Informat, Fuzhou 350002, Peoples R China
[3] Univ Chinese Acad Sci, 19 Yuquan, Beijing 100049, Peoples R China
[4] Indiana Univ Purdue Univ, Dept Earth Sci, 723 W Michigan St, Indianapolis, IN 46202 USA
[5] Chinese Univ Hong Kong, Univ Serv Ctr China Studies, Hong Kong, Hong Kong, Peoples R China
[6] Hefei Univ Technol, Sch Comp & Informat, Hefei 230009, Peoples R China