1. Key Laboratory for Land Environment and Disaster Monitoring, Ministry of Natural Resources, China University of Mining and Technology, Xuzhou, China
2. Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai, China
3. Xinjiang Uygur Autonomous Region Mine Safety Service and Guarantee Center, Urumqi, China
4. Fifth Geological Brigade of the Bureau of Geology and Mining, Xuzhou, China