A herdsman walks with his horses along Qinghai Lake on Wednesday in Northwest China's Qinghai province. The lake has been expanding for eight consecutive years to more than 4,400 square kilometers due to precipitation and environmental protection. Qinghai Lake is the largest inland salt water lake in China. [Photo: Xinhua]
Liu Baokang, an engineer at Qinghai Meteorological Research Institute shows a remote sensor monitoring image of Qinghai Lake, Oct 23, 2012. [Photo: Xinhua]
Visitors tour along Qinghai Lake on April 30, 2012. The lake has expanded to its largest area in 12 years. [Photo: Xinhua]
