Affiliation: | 1. School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan, Ningxia 750021, China;2. Ningxia Institute of Fundamental Geological Survey, Yinchuan, Ningxia 750021, China;3. Breeding Base for State Key Lab. of Land Degradation and Ecological Restoration in Northwestern, Yinchuan, Ningxia, 750021, China;4. Key Lab. for Restoration and Reconstruction of Degraded Ecosystems in Northwestern China of Ministry of Education, Yinchuan, Ningxia 750021, China;5. Ningxia Vocational Technical College of Industry and Commerce, Yinchuan, Ningxia 750021, China |