Aerial photo taken on May 27, 2020 shows Zhang Yinglong, a man who gave up his well-paid job in Tianjin and joined in a forestation project in his ancestral home province of Shaanxi, observing on a watchtower to prevent forest fire in Gechougou Village, Shenmu City of northwest China's Shaanxi 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/Liu Xiao)
