Nanjing China Green Expo Park, referred to as Green Expo Park, is located in the riverside of Hexi New Town, Jianye District, Nanjing, west of the Yangtze River Jiajiang River, east of the Yangtze River Avenue, built in September 2005. It was named after the successful holding of the first China Green Expo. It is one of the most distinctive green theme parks in China. It is also a demonstration section of the riverside scenery belt of the west of Nanjing River, the largest urban park along the Yangtze River[1]. The Green Expo Park is 3 kilometers along the Yangtze River shoreline and covers an area of 160 hectares. There are 45 attractions in the park, including 35 domestic parks, 5 international parks, 2 industrial parks and 3 natural scenery areas outside the river embankment. There are more than 600 plant varieties in the park. It contains a variety of national-level protection plants, national-level rare protection plants, and Xinjiang Populus euphratica and tree fossil siliconized wood