[1] East China Normal Univ, Sch Geog Sci, Key Lab Geog Informat Sci, Minist Educ, 500 Dongchuan Rd, Shanghai 200241, Peoples R China
[2] East China Normal Univ, State Key Lab Estuarine & Coastal Res, Yangtze Delta Estuarine Wetland Ecosyst Observat &, Minist Educ & Shanghai, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China
[3] East China Normal Univ, Shanghai Key Lab Urban Ecol Proc & Ecorestorat, 500 Dongchuan Rd, Shanghai 200241, Peoples R China
[4] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China