Combination photo taken on March 15, 2015 shows Mengding Tea inheritor Zhang Yuehua making tea by hand in Ya'an City, southwest China's Sichuan Province, March 15, 2015. Tea makers are making tea with newly-picked tea leaves before the Qingming Festival, which falls on April 5 this year, as tea of this period of time is regarded to have a better taste. (Xinhua/Jiang Hongjing)
Tea farmer Jiang Wenyong carries his child on the back as he picks up tea leaves in Shangma Village of Shuanghe Township in Ya'an City, southwest China's Sichuan Province, March 12, 2015. Tea makers are making tea with newly-picked tea leaves before the Qingming Festival, which falls on April 5 this year, as tea of this period of time is regarded to have a better taste. (Xinhua/Jiang Hongjing)
Tea farmers sell fresh tea leaves to tea dealers at a market in Shuanghe Township in Ya'an City, southwest China's Sichuan Province, March 14, 2015. Tea makers are making tea with newly-picked tea leaves before the Qingming Festival, which falls on April 5 this year, as tea of this period of time is regarded to have a better taste. (Xinhua/Jiang Hongjing)
Tea farmers pick up tea leaves in Zhongfeng Township of Ya'an City, southwest China's Sichuan Province, March 13, 2015. Tea makers are making tea with newly-picked tea leaves before the Qingming Festival, which falls on April 5 this year, as tea of this period of time is regarded to have a better taste. (Xinhua/Jiang Hongjing)
Mengding Tea inheritor Zhang Yuehua (L) makes tea by hand in Ya'an City, southwest China's Sichuan Province, March 15, 2015. Tea makers are making tea with newly-picked tea leaves before the Qingming Festival, which falls on April 5 this year, as tea of this period of time is regarded to have a better taste. (Xinhua/Jiang Hongjing)
Tea dealers sort out fresh tea leaves at a market in Shuanghe Township in Ya'an City, southwest China's Sichuan Province, March 14, 2015. Tea makers are making tea with newly-picked tea leaves before the Qingming Festival, which falls on April 5 this year, as tea of this period of time is regarded to have a better taste. (Xinhua/Jiang Hongjing)
An actor performs tea art during the Mengding Mountain International Tea Art Tourism Festival in Ya'an City, southwest China's Sichuan Province, March 13, 2015. Tea makers are making tea with newly-picked tea leaves before the Qingming Festival, which falls on April 5 this year, as tea of this period of time is regarded to have a better taste. (Xinhua/Jiang Hongjing)
Tea farmers count money after selling fresh tea leaves at a market in Shuanghe Township in Ya'an City, southwest China's Sichuan Province, March 14, 2015. Tea makers are making tea with newly-picked tea leaves before the Qingming Festival, which falls on April 5 this year, as tea of this period of time is regarded to have a better taste. (Xinhua/Jiang Hongjing)
Tea dealers purchase tea at a market in Shuanghe Township in Ya'an City, southwest China's Sichuan Province, March 15, 2015. Tea makers are making tea with newly-picked tea leaves before the Qingming Festival, which falls on April 5 this year, as tea of this period of time is regarded to have a better taste. (Xinhua/Jiang Hongjing)