1. Research Center for Strategy of Global Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
2. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
3. School of Humanities and Economic Management, China University of Geosciences, Beijing 100083, China
4. Key Laboratory of Carrying Capacity Assessment for Resource and Environment, Ministry of Land and Resource, Beijing 100083, China