1. Department of Land Resource Management, School of Public Administration China University of Geosciences Wuhan PR China
2. College of Earth Science and Engineering Shandong University of Science and Technology Qingdao PR China
3. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing PR China
4. Fifth Geological Team Shandong Provincial Bureau of Geology and Mineral Resources, Taian Shandong PR China
5. Shandong University of Science and Technology Qingdao Shandong Province PR China