1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences; Changchun China
2. University of Chinese Academy of Science; Beijing China
3. College of Forestry; Northeast Forestry University; Harbin China
4. Graham Centre for Agricultural Innovation (Alliance between NSW Department of Primary Industries and Charles Sturt University); Wagga Wagga Agricultural Institute; Wagga Wagga New South Wales Australia
5. School of Geographical Sciences; Northeast Normal University; Changchun China