A lake bed is full of cracks due to a severe drought in the Dongting Lake in Yueyang city, Central China's Hunan province, May 11, 2011. A severe drought continued to plague in Hunan, disrupting drinking water supply to more than 320,000 people and drying up 4.5 million mu (3,000 square kilometers) of farmland, according to statistics from the local authorities. [Photo/Xinhua]

A farmer looks at the farmland with cracks and withered crop due to severe drought in Junshan district of Yueyang city, Central China's Hunan province, May 11, 2011.[Photo/Xinhua]