Farmers of the Tibetan ethnic group celebrate the Ongkor Festival in Shigatse, southwest China's Tibet Autonomous Region, Aug. 1, 2014. The Ongkor Festival, or Bumper Harvest Festival, is celebrated annually by local farmers for the harvest of crops. (Xinhua/Chogo)

A farmer of the Tibetan ethnic group attends a race during the celebration of the Ongkor Festival in Shigatse, southwest China's Tibet Autonomous Region, Aug. 1, 2014. The Ongkor Festival, or Bumper Harvest Festival, is celebrated annually by local farmers for the harvest of crops. (Xinhua/Chogo)

A farmer of the Tibetan ethnic group attends a race during the celebration of the Ongkor Festival in Shigatse, southwest China's Tibet Autonomous Region, Aug. 1, 2014. The Ongkor Festival, or Bumper Harvest Festival, is celebrated annually by local farmers for the harvest of crops. (Xinhua/Chogo)

Farmers of the Tibetan ethnic group celebrate the Ongkor Festival in Shigatse, southwest China's Tibet Autonomous Region, Aug. 1, 2014. The Ongkor Festival, or Bumper Harvest Festival, is celebrated annually by local farmers for the harvest of crops. (Xinhua/Chogo)

A farmer of the Tibetan ethnic group attends the celebration of the Ongkor Festival in Shigatse, southwest China's Tibet Autonomous Region, Aug. 1, 2014. The Ongkor Festival, or Bumper Harvest Festival, is celebrated annually by local farmers for the harvest of crops. (Xinhua/Chogo)

Farmers of the Tibetan ethnic group celebrate the Ongkor Festival in Shigatse, southwest China's Tibet Autonomous Region, Aug. 1, 2014. The Ongkor Festival, or Bumper Harvest Festival, is celebrated annually by local farmers for the harvest of crops. (Xinhua/Chogo)

Farmers of the Tibetan ethnic group play tug-of-war to celebrate the Ongkor Festival in Shigatse, southwest China's Tibet Autonomous Region, Aug. 1, 2014. The Ongkor Festival, or Bumper Harvest Festival, is celebrated annually by local farmers for the harvest of crops. (Xinhua/Chogo)

A farmer of the Tibetan ethnic group attends a race during the celebration of the Ongkor Festival in Shigatse, southwest China's Tibet Autonomous Region, Aug. 1, 2014. The Ongkor Festival, or Bumper Harvest Festival, is celebrated annually by local farmers for the harvest of crops. (Xinhua/Chogo)

A farmer of the Tibetan ethnic group attends a race during the celebration of the Ongkor Festival in Shigatse, southwest China's Tibet Autonomous Region, Aug. 1, 2014. The Ongkor Festival, or Bumper Harvest Festival, is celebrated annually by local farmers for the harvest of crops. (Xinhua/Chogo)