Scenery of Qinghai Lake

Aerial photo taken on April 20, 2019 shows a view of Qinghai Lake in Heimahe Town, Gonghe County of northwest China's Qinghai Province. As the temperature rose in spring, the frozen Qinghai Lake has started to thaw. (Xinhua/Zhang Long)

Aerial photo taken on April 20, 2019 shows a view of Qinghai Lake in Heimahe Town, Gonghe County of northwest China's Qinghai Province. As the temperature rose in spring, the frozen Qinghai Lake has started to thaw. (Xinhua/Zhang Long)

Aerial photo taken on April 20, 2019 shows a view of Qinghai Lake in Heimahe Town, Gonghe County of northwest China's Qinghai Province. As the temperature rose in spring, the frozen Qinghai Lake has started to thaw. (Xinhua/Zhang Long)

Aerial photo taken on April 20, 2020 shows a flock of brown-headed gulls on the Qinghai Lake in northwest China's Qinghai Province. As the temperature rose in spring, the frozen Qinghai Lake has started to thaw. (Xinhua/Zhang Long)

Aerial photo taken on April 20, 2019 shows a view of Qinghai Lake in Heimahe Town, Gonghe County of northwest China's Qinghai Province. As the temperature rose in spring, the frozen Qinghai Lake has started to thaw. (Xinhua/Zhang Long)

Aerial photo taken on April 20, 2019 shows a view of Qinghai Lake in Heimahe Town, Gonghe County of northwest China's Qinghai Province. As the temperature rose in spring, the frozen Qinghai Lake has started to thaw. (Xinhua/Zhang Long)