1. School of Earth Sciences and Resources China University of Geosciences (Beijing) Beijing 100083 China
2. Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China
3. School of Geographical Sciences Fujian Normal University Fuzhou 350007 China
4. CAS Center for Excellence in Life and Paleoenvironment Beijing 100044 China
5. Key Laboratory of Humid Subtropical Ecogeographical Processes of the Ministry of Education Fujian Normal University Fuzhou 350007 China
6. Institute of Geography Fujian Normal University Fuzhou 350007 China
7. College of Earth and Planetary Sciences University of Chinese Academy of Sciences Beijing 100049 China