Farmers sell watermelons in Hanjiaoshui Township of Zhongning County, Zhongwei City, northwest China's Ningxia Hui Autonomous Region, July 23, 2019. Hanjiaoshui Township of Zhongning County is located in arid area with harsh natural environment. With the help of the project diverting water from the Yellow River to ease Hanjiaoshui's water shortage, local farmers are able to develop fruit industry and increase their income. (Xinhua/Feng Kaihua)