1. Wang, N.: A study on the relationship between drought and desertification in the Guanzhong region during the Ming and Qing dynasties. Shaanxi Normal University (2016)
2. Wen, K.G.: China's Meteorological Disaster Dictionary. Meteorological Press (2008)
3. Zhang, S.: On the production of dryland potato crops in the mountainous areas of the Qinghai Plateau. Agric. Sci. Technol. Newslett. 498(06), 34–36 (2013)
4. Yang, F., Liu, L.: Drought occurrence patterns and their trends in eastern Qinghai. Arid Zone Res. 29(02), 284–288 (2012)
5. Zhao, H.M.: A preliminary study on the relationship between natural precipitation resources and spring wheat yield in semi-arid areas of southeastern Qinghai and its countermeasures. Qinghai Agric. Extension 1997(4), 49–50 (1997)