Photo taken on Oct. 23, 2020 shows villager Wang Tianchang watering seedlings in Hongshui Village, Wuwei City of northwest China's Gansu 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. (Xinhua/Ma Xiping)
