Farmers of the Tibetan ethnic group attend a ceremony to celebrate the starting of spring plowing at Deqing Village of Dazi County, southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Chogo)
A farmer of the Tibetan ethnic group burns incense to pray for a good harvest during a ceremony to celebrate the starting of spring plowing at Deqing Village of Dazi County, southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Chogo)
Farmers of the Tibetan ethnic group attend a ceremony to celebrate the starting of spring plowing at Deqing Village of Dazi County, southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Chogo)
Farmers of the Tibetan ethnic group attend a ceremony to celebrate the starting of spring plowing at Deqing Village of Dazi County, southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Chogo)
A monk prays for a good harvest during a ceremony to celebrate the starting of spring plowing at Deqing Village of Dazi County, southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Chogo)
Farmers of the Tibetan ethnic group attend a ceremony to celebrate the starting of spring plowing at Deqing Village of Dazi County, southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Chogo)
Farmers attend a ceremony marking the start of spring plowing in Xuecun Village of Gonggar County, Shannan Prefecture, southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Purbu Zhaxi)
A farmer attends a ceremony marking the start of spring plowing in Xuecun Village of Gonggar County, Shannan Prefecture, southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Purbu Zhaxi)
Farmers attend a ceremony marking the start of spring plowing in Xuecun Village of Gonggar County, Shannan Prefecture, southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Purbu Zhaxi)
Farmers attend a ceremony marking the start of spring plowing in Xuecun Village of Gonggar County, Shannan Prefecture, southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Purbu Zhaxi)
A farmer of the Tibetan ethnic group works in the fields at Weiba Village of Lhasa, capital of southwest China's Tibet Autonomous Region, March 16, 2013. A ceremony was held on Saturday to celebrate the starting of spring plowing in Tibet. (Xinhua/Liu Kun)
Farmers of the Tibetan ethnic group work in the fields at Weiba Village of Lhasa, capital of southwest China's Tibet Autonomous Region, March 16, 2013. A ceremony was held on Saturday to celebrate the starting of spring plowing in Tibet. (Xinhua/Liu Kun)
A farmer of the Tibetan ethnic group works in the fields at Weiba Village of Lhasa, capital of southwest China's Tibet Autonomous Region, March 16, 2013. A ceremony was held on Saturday to celebrate the starting of spring plowing in Tibet. (Xinhua/Liu Kun)
Farmers of the Tibetan ethnic group attend a ceremony to celebrate the starting of spring plowing at Weiba Village of Lhasa, capital of southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Liu Kun)
Farmers of the Tibetan ethnic group attend a ceremony to celebrate the starting of spring plowing at Weiba Village of Lhasa, capital of southwest China's Tibet Autonomous Region, March 16, 2013. (Xinhua/Liu Kun)