1. School of Management, Lanzhou University, Lanzhou 730000, China
2. Editorial Department of Journal of Lanzhou University (Social Sciences), Lanzhou University, Lanzhou 730000, China
3. Henan Key Laboratory of Agrometeorological Support and Applied Technique, China Meteorological Administration, Zhengzhou 450003, China
4. Henan Provincial Climate Centre, Zhengzhou 450003, China
5. School of Geoscience and Technology, Zhengzhou University, Zhengzhou 450001, China