1. College of Land Science and Technology, China Agricultural University, Beijing 100193, China
2. State Key Laboratory of Resources and Environmental Information System, Beijing 100101, China
3. Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Beijing 100193, China
4. College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China
5. Institute of Applied Remote Sensing and Information Technology, Zhejiang University, Hangzhou 310058, China
6. ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311200, China
7. Department of Environmental Engineering, Yuzhang Normal University, Nanchang 330103, China