Eco-friendly industrial system helps protect ecological environment in NW China

Aerial photo shows yaks grazing in Qumalai County of Yushu Tibetan Autonomous Prefecture in northwest China's Qinghai Province, April 19, 2022. Animal husbandry has always been a pillar industry of Qumalai County, which is located in the Sanjiangyuan National Park. In recent years, the local government has built an eco-friendly industrial system, which not only promotes rural revitalization, but also effectively protects the ecological environment. (Xinhua/Zhang Long)