School of Civil Engineering and Architecture Shaanxi University of Technology Hanzhong 723001 China;
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources Qinghai Institute of Salt Lakes Chinese Academy of Sciences Xining 810008 China;
School of biological sciences and engineering Shaanxi University of Technology Hanzhong 723001 China;
Shaanxi University of Technology Hanzhong 723001 China;