Aerial photo taken on June 19, 2016 shows the flocks of sheep on the pasture in Ewenki Autonomous Banner, Hulunbuir, north China's Inner Mongolia Autonomous Region. (Xinhua)

Aerial photo taken on June 19, 2016 shows the Yimin river on the pasture in Ewenki Autonomous Banner, Hulunbuir, north China's Inner Mongolia Autonomous Region. (Xinhua)

Aerial photo taken on June 19, 2016 shows the flocks of sheep on the pasture in Ewenki Autonomous Banner, Hulunbuir, north China's Inner Mongolia Autonomous Region. (Xinhua)

Aerial photo taken on June 19, 2016 shows the Yimin river on the pasture in Ewenki Autonomous Banner, Hulunbuir, north China's Inner Mongolia Autonomous Region. (Xinhua)

Aerial photo taken on June 19, 2016 shows the flocks of sheep on the pasture in Ewenki Autonomous Banner, Hulunbuir, north China's Inner Mongolia Autonomous Region. (Xinhua)

Aerial photo taken on June 19, 2016 shows the Mongolian yurts on the pasture in Ewenki Autonomous Banner, Hulunbuir, north China's Inner Mongolia Autonomous Region. (Xinhua)

Flocks of sheep are seen on the pasture in Ewenki Autonomous Banner, Hulunbuir, north China's Inner Mongolia Autonomous Region, June 19, 2016. (Xinhua)

A couple pose for wedding photos on the pasture in Ewenki Autonomous Banner, Hulunbuir, north China's Inner Mongolia Autonomous Region, June 19, 2016. (Xinhua)

Tourists ride horses on the pasture in Ewenki Autonomous Banner, Hulunbuir, north China's Inner Mongolia Autonomous Region, June 19, 2016. (Xinhua)