A farmer pours harvested blueberries onto the floor of a storeroom in Jianshan Village, the Yongchuan District of Chongqing, southwest China, May 21, 2013. Blueberry production in the village reached 10, 000 kilograms in 2012, bringing a production value of more than 2 million yuan (320,000 dollars).(Xinhua/Li jian)

Farmers harvest blueberries in the fields in Jianshan Village, the Yongchuan District of Chongqing, southwest China, May 21, 2013. Blueberry production in the village reached 10, 000 kilograms in 2012, bringing a production value of more than 2 million yuan (320,000 dollars).(Xinhua/Li jian)

A Farmer shows harvested blueberries in Jianshan Village, the Yongchuan District of Chongqing, southwest China, May 21, 2013. Blueberry production in the village reached 10, 000 kilograms in 2012, bringing a production value of more than 2 million yuan (320,000 dollars).(Xinhua/Li jian)

Farmers harvest blueberries in the fields in Jianshan Village, the Yongchuan District of Chongqing, southwest China, May 21, 2013. Blueberry production in the village reached 10, 000 kilograms in 2012, bringing a production value of more than 2 million yuan (320,000 dollars).(Xinhua/Li jian)