Herds of livestock graze on a grassland by the Qinghai Lake in northwest China's Qinghai Province, Sept. 23, 2019. The ecological environment of Qinghai Lake area has improved gradually in recent years, owing to the increasing rainfalls and a series of ecological restoration programs. (Xinhua/Zhang Long)
A flock of birds fly over the Qinghai Lake in northwest China's Qinghai Province, Sept. 23, 2019. The ecological environment of Qinghai Lake area has improved gradually in recent years, owing to the increasing rainfalls and a series of ecological restoration programs. (Xinhua/Zhang Long)
Photo taken on Sept. 23, 2019 shows a grassland along the Qinghai Lake in northwest China's Qinghai Province. The ecological environment of Qinghai Lake area has improved gradually in recent years, owing to the increasing rainfalls and a series of ecological restoration programs. (Xinhua/Zhang Long)
Photo taken on Sept. 23, 2019 shows the Qinghai Lake in northwest China's Qinghai Province. The ecological environment of Qinghai Lake area has improved gradually in recent years, owing to the increasing rainfalls and a series of ecological restoration programs. (Xinhua/Zhang Long)
