池桐是我国古老的速生乡土树种之一。历代劳动人民都喜欢栽植这一树种,并积累了不少可贵的种植技术和木材利用经验。但由于封建社会的影响,使林业的发展受到一定的限制。解放以后,党和人民政府非常重视林业工作,广大林业职工在林业科学试验方面取得了可喜的成果。人们在历史经验的基础上,发展了培育“高干”泡桐的技术,把泡桐主干只有2—3米高的特性,改造成 Chi Tong is one of the ancient fast-growing native tree species in our country. Past working people like to plant this tree species, and has accumulated a lot of valuable cultivation techniques and experience in the use of wood. However, due to the influence of feudal society, the development of forestry is subject to certain restrictions. After the liberation, the party and the people’s government attached great importance to forestry work. The vast number of forestry workers have made gratifying achievements in forestry scientific experiments. On the basis of historical experience, people have developed the technology of cultivating “tall dry” paulownia and transformed the characteristics of paulownia trunk to only 2-3 meters in height into