Aerial photo taken on July 28, 2020 shows the scenery of Qinghai Lake in northwest China's Qinghai Province. (Xinhua/Zhang Hongxiang)

Aerial photo taken on July 28, 2020 shows the scenery of Qinghai Lake in northwest China's Qinghai Province. (Xinhua/Zhang Hongxiang)

Aerial photo taken on July 28, 2020 shows the scenery of Qinghai Lake in northwest China's Qinghai Province. (Xinhua/Wu Gang)

Aerial photo taken on July 28, 2020 shows the scenery of Qinghai Lake in northwest China's Qinghai Province. (Xinhua/Zhang Hongxiang)

Aerial photo taken on July 28, 2020 shows the scenery of Qinghai Lake in northwest China's Qinghai Province. (Xinhua/Zhang Hongxiang)

Aerial photo taken on July 28, 2020 shows a part of the scenery of Qinghai Lake in northwest China's Qinghai Province. (Xinhua/Zhang Hongxiang)