Photo taken on May 25, 2011, shows part of the bottom of the Honghu Lake, which dried up due to drought, in central China's Hubei Province. A long-lasting drought has almost dried up the Honghu Lake, the seventh largest fresh water lake in China, destroying the biological system in the lake area, which experts said would not recover until after at least 10 years. [Hao Tongqian/Xinhua]