1. Key Laboratory of Yellow River Water Environment in Gansu Province, Lanzhou Jiaotong University, Lanzhou 730070, China
2. Institute of Environmental Ecology School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
3. Gansu Academy of Social Sciences, Lanzhou 730070, China
4. Gansu Hanxing Environmental Protection Co., Ltd., Lanzhou 730070, China
5. College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China