Recently, the 2023 National Science Popularization Week for Ancient and Famous Trees Protection, with the theme of "Protecting Ancient and Famous Trees and Continuing the Chinese Context", was launched in various places. With the attention paid to the protection of ancient and famous trees in various regions, the protection technology and mode are also constantly innovating, and scientific and technological achievements are constantly emerging. How can science and technology help protect ancient trees? People's Daily Online invites Cong Richen, a professor level senior engineer of Beijing Academy of Landscape Sciences, to interpret for you online.