Photo taken on Aug. 7, 2018 shows a man pulling mulls carrying seedlings on a forestry in Fengning Man Autonomous County, north China's Hebei Province. Friday marks China's National Tree Planting Day. With the efforts of volunteers across the country, green lands has covered more areas of China and the eco-friendly development concept is seeded in people's heart. (Photo by Wang Liqun/Xinhua)
