1. Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment Huazhong Agricultural University Wuhan People's Republic of China
2. Department of Plant and Soil Sciences University of Delaware Newark Delaware
3. College of Hydraulic and Environmental Engineering China Three Gorges University Yichang People's Republic of China
4. School of Earth and Atmospheric Sciences Georgia Institute of Technology Atlanta Georgia