Aerial photo taken on Sept. 26, 2017 shows a martyr mausoleum in Jinggangshan City, east China's Jiangxi Province. Jiangxi Province is located in eastern China along the southern shore of Yangtze River with abundant resources and mild climate. Surrounded by majestic mountains, the province is also known for the Poyang Lake, China's largest freshwater lake. Jiangxi has made great efforts in ecological development and building national ecological civilization pilot zone. On June 16-18, the Beijing International Horticultural Exhibition displays Jiangxi's achievements in ecological development with a Jiangxi Day theme event. (Xinhua/Wan Xiang)