According to the current status of ancient and precious trees in Dongcheng District, a program for the rejuvenation of 170 ancient and precious trees that are endangered and weak in Dongcheng District was formulated in April 2020. After the open bidding in May, construction was officially started in June and completed in September. 

Measures such as improvement of the ground and underground growth environment, fence protection, pest control, tree crown trimming, tree hole repair, reinforcement and publicity sign installation, were taken for rejuvenating 170 ancient and previous but endangered and weak trees.