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Qinghai Lake, China's largest inland salt lake, has seen over 30,000 water birds, with some starting to breed, according to the administration of the local nature reserve. Dubbed as the "most beautiful lake in China," Qinghai Lake plays an important role in the ecological security of the Qinghai-Tibet Plateau. It is an important ecological barrier in northern China and a key stop for migrant birds from Central and East Asia.