1. Key
Laboratory of Arable Land Conservation (Middle and Lower Reaches of
Yangtze River), Ministry of Agriculture, College of Resources and
Environment, Huazhong Agricultural University, Wuhan 430070, People’s Republic of China
2. Environmental
Soil Chemistry Group, Delaware Environmental Institute and Department
of Plant and Soil Sciences, University of Delaware, Newark, Delaware 19716, United States
3. Key
Laboratory of Surficial Geochemistry, Ministry of Education, School
of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
4. State
Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,
Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and
Mathematics, Chinese Academy of Sciences, Wuhan 430071, People’s Republic of China