1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation Northwest A & F University Yangling PR China
2. Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration of Northwestern China/Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwestern China of Ministry of Education Ningxia University Yinchuan PR China
3. Institute of Soil and Water Conservation Chinese Academy of Sciences and Ministry of Water Resources Yangling PR China
4. University of Chinese Academy of Sciences Beijing PR China