Wuqi county in Yan'an pursues ecological, sustainable development

Ma Youen picks a melon at a greenhouse in Mawan Village of Wuqi County in Yan'an City, northwest China's Shaanxi Province, June 6, 2019. Wuqi County has carried out a development policy since 1998 that returned farmland to forest for ecological protection and sustainable development purposes. (Xinhua/Tao Ming)