This aerial photo taken on July 30, 2017 shows a wetland in Daofu County of the Tibetan Autonomous Prefecture of Garze in southwest China's Sichuan Province. In recent years, authorities in Sichuan have carried out a series of ecological projects to protect eco-systems in the upper reaches of the Yangtze River. [Photo/Xinhua]
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E-mail Xinhua, May 7, 2018
