The photo shows a splendid view of nightfall in Sanjiangyuan area. Sanjiangyuan area is the largest and highest natural wetland in China. It is also a nature reserve that accommodates the largest number of biotic species in the world. It provides 49.2% of the Yellow River's total discharge, 25% of the Yangtze River's and 15% of Lancang River's. This is why it is called "China's water tower". As part of Qinghai-Tibet Plateau, its special geographic environment and climate conditions can have substantial influence on the general circulation of China's air, East Asia and even the northern hemisphere.
Tibetan antelopes gallop at the headstream of the Yellow River in Sanjiangyuan area.
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