1Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Yiheyuanhou, 100091, Beijing, PR China
2Faculty of Geo-Information Science and Earth Observation, University of Twente, Hengelosestraat 99, 7500 AA Enschede, The Netherlands
3Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences,Dengzhuang South Road, 100094, Beijing, PR China
4Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, PR China
5Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, 210023, PR China
6State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing 210023, PR China
7Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, PR China
8College of Forestry, Beijing Forestry University, Beijing 100083, PR China