1. College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, China
2. Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Taastrup, Denmark
3. Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, China
4. College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China