An aerial view of Yanhu Lake, March 20. The 13,200-hectare lake in Yuncheng, North China's Shanxi province, is a nationally famous inland saline lake rich in edible and industrial salts, such as sodium sulfide and magnesium sulfate. The color of the lake varies with the temperature and the concentration of some 20 chemical elements in the water. [Photo/Xinhua]

An aerial photograph of Yanhu Lake on March 20. The 13,200-hectare lake in Yuncheng, North China's Shanxi province, is a nationally famous inland saline lake rich in edible and industrial salts, such as sodium sulfide and magnesium sulfate. The color of the lake varies with the temperature and the concentration of some 20 chemical elements in the water.[Photo/Xinhua]