A tourist buys blueberries through mobile payment at a blueberry planting base at Damianpo Village of Cizhu Town in Yubei District, southwest China's Chongqing Municipality, July 5, 2019. The town's over 1,600 mu (about 107 hectares) alpine blueberry enters its optimal picking period. Depending on its natural advantages, Cizhu town has encouraged developing alpine blueberry industry as a way to improve local people's income. (Xinhua/Wang Quanchao)