There are the most sycamore trees in Nanjing, and sycamore trees (especially French sycamore trees) are the city trees in Nanjing! This goes back to the Republic of China, and all the plants are French phoenix trees. At that time, one was to beautify the environment, and the other was to enjoy the cool, because Nanjing was very hot in summer. Unfortunately, it has been cut a lot now, and the rest are basically trimmed. In order to facilitate the passage of large vehicles, there are wires at the back. At present, most of the "Fatong" trees seen on the streets of Nanjing are actually two-ball British phoenix trees. Only one-ball American phoenix tree is scattered in the campus of Nantah, Sun Yat-sen's Mausoleum, Botanical Garden and the city, while the "French phoenix tree" characterized by three balls is hard to see and is said to be extinct.

Tracing back to Nanjing's greening, it began in Wu Dong in the Three Kingdoms period in 229 AD, and then the Eastern Jin, Song, Qi, Liang and Chen successively established their capitals here for more than 320 years. The ancestors who lived in the ancient stone city gradually developed the habit of loving nature, indulging in mountains and rivers and traveling. In the repeated enjoyment and transformation of the natural environment, the famous Jiangnan Water Garden was inadvertently bred. Historically, before the Republic of China, there were no sycamore trees in Nanjing culture, and before there were sycamore trees in Nanjing, the most common ones were willows. As the saying goes, Xuanwu water, Taicheng willow. Then in 1872, a French missionary planted the first French phoenix tree in Nanjing on Shigu Road, creating the history of street trees and large-scale planting of phoenix trees in Nanjing.

Nanjing Wutong Incident: It originated from the beginning of March, 201/kloc-0. In order to build Nanjing Metro Line 3 and Line 10, the Nanjing Municipal Government transplanted many plane trees planted in the middle of last century in the main urban area of Nanjing. Its behavior caused strong dissatisfaction among some Nanjing citizens, who initiated activities to protect street trees in Nanjing.