Aerial photo taken on March 6, 2020 shows workers working at the site of the ecological restoration project at Guangyang Isle of Nan'an District, southwest China's Chongqing. In recent years, Chongqing has continuously built up important ecological barriers in the upper reaches of the Yangtze River by strengthening ecological restoration. The ecological environment in the Chongqing section of the Yangtze River has been continuously improved. (Xinhua/Wang Quanchao)
