Cows seek for food at a dried reservoir in Shilin County of southwest China's Yunnan Province, Feb. 27, 2013. About 600,000 people are facing shortage of drinking water amid severe drought that hit southwest China's Yunnan Province for the fourth straight year, and the current drought has affected 5.11 million mu of cropland in the province China's drought relief authority said Feb. 21, 2013. [Photo/Xinhua]