Photo shows the Lancang River in Nangchen county, Yushu Tibetan autonomous prefecture in northwest China’s Qinghai province. (Gan Haiqiong/People’s Daily Online)

Photo shows a view of mountains and grassland in Nangchen county, Yushu Tibetan autonomous prefecture in northwest China’s Qinghai province. (Gan Haiqiong/People’s Daily Online)

Photo shows a salt field in Nangchen county, Yushu Tibetan autonomous prefecture in northwest China’s Qinghai province. (Gan Haiqiong/People’s Daily Online)

Photo shows a forest farm in Nangchen county, Yushu Tibetan autonomous prefecture in northwest China’s Qinghai province. (Gan Haiqiong/People’s Daily Online)

Photo shows a view of cloud-shrouded mountains in Nangchen county, Yushu Tibetan autonomous prefecture in northwest China’s Qinghai province. (Gan Haiqiong/People’s Daily Online)

Photo shows a view of cloud-shrouded mountains in Nangchen county, Yushu Tibetan autonomous prefecture in northwest China’s Qinghai province. (Gan Haiqiong/People’s Daily Online)

Photo shows a village in Nangchen county, Yushu Tibetan autonomous prefecture in northwest China’s Qinghai province. (Gan Haiqiong/People’s Daily Online)

Photo shows a view of mountains and grassland in Zadoi county, Yushu Tibetan autonomous prefecture in northwest China’s Qinghai province. (Gan Haiqiong/People’s Daily Online)

Photo shows a view of mountains and grassland in Zadoi county, Yushu Tibetan autonomous prefecture in northwest China’s Qinghai province. (Gan Haiqiong/People’s Daily Online)

Photo shows a canyon in Zadoi county, Yushu Tibetan autonomous prefecture in northwest China’s Qinghai province. (Gan Haiqiong/People’s Daily Online)