Oxen graze on the Barkol grassland in northwest China's Xinjiang Uygur Autonomous Region, Aug. 20, 2021. Herdsmen on the Barkol grassland are busy reaping grasses to be stored as the winter food for their livestock. (Xinhua/Gao Han)

A herdsman operates machine to reap grass on the Barkol grassland in northwest China's Xinjiang Uygur Autonomous Region, Aug. 20, 2021. Herdsmen on the Barkol grassland are busy reaping grasses to be stored as the winter food for their livestock. (Xinhua/Gao Han)

Aerial photo taken on Aug. 20, 2021 shows a herdsman operating machine to reap grass on the Barkol grassland in northwest China's Xinjiang Uygur Autonomous Region. Herdsmen on the Barkol grassland are busy reaping grasses to be stored as the winter food for their livestock. (Xinhua/Gao Han)

Aerial photo taken on Aug. 20, 2021 shows a herdsman operating machine to reap grass on the Barkol grassland in northwest China's Xinjiang Uygur Autonomous Region. Herdsmen on the Barkol grassland are busy reaping grasses to be stored as the winter food for their livestock. (Xinhua/Gao Han)

A herdsman loads reaped grasses on a car to be sold on the Barkol grassland in northwest China's Xinjiang Uygur Autonomous Region, Aug. 20, 2021. Herdsmen on the Barkol grassland are busy reaping grasses to be stored as the winter food for their livestock. (Xinhua/Gao Han)

Sheep graze on the Barkol grassland in northwest China's Xinjiang Uygur Autonomous Region, Aug. 20, 2021. Herdsmen on the Barkol grassland are busy reaping grasses to be stored as the winter food for their livestock. (Xinhua/Gao Han)

Aerial photo taken on Aug. 20, 2021 shows scenery on the Barkol grassland in northwest China's Xinjiang Uygur Autonomous Region. Herdsmen on the Barkol grassland are busy reaping grasses to be stored as the winter food for their livestock. (Xinhua/Gao Han)

Aerial photo taken on Aug. 20, 2021 shows scenery on the Barkol grassland in northwest China's Xinjiang Uygur Autonomous Region. Herdsmen on the Barkol grassland are busy reaping grasses to be stored as the winter food for their livestock. (Xinhua/Gao Han)

A herdsman stays on reaped grass on the Barkol grassland in northwest China's Xinjiang Uygur Autonomous Region, Aug. 20, 2021. Herdsmen on the Barkol grassland are busy reaping grasses to be stored as the winter food for their livestock. (Xinhua/Gao Zun)