1. School of Geographical Sciences Northeast Normal University Changchun China
2. Swiss Federal Research Institute WSL Birmensdorf Switzerland
3. Institute of Applied Ecology Chinese Academy of Sciences Shenyang China
4. Department of Geography University of Cambridge Cambridge UK
5. Department of Geography Masaryk University Brno Czech Republic
6. Global Change Research Institute CAS Brno Czech Republic
7. Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun China
8. School of Natural Resources University of Missouri Columbia MO USA