泡桐是我国速生优质用材树种,大力发展泡桐,对于解决近期国家建设和人民生活用材,增加群众收益,具有重要意义。泡桐生长快,五、六年可开始利用,十年左右可成大材,群众形容它是:“头年象棍杆,两年成大伞,三年锯板板,五年可修房,十年作大梁”。据调查测定:一般十年生泡桐胸径生长可达25～40厘米,单株材积0.3～0.5立方米。要是采用 Paulownia is China’s fast-growing high-quality timber species, vigorously develop paulownia, to solve the recent national construction and the people’s livelihood timber, increase people’s income, is of great significance. Paulownia grow fast, five or six years can be started to use, about ten years can be as large timber, the masses described it as: “the first year like clubs, two years into an umbrella, sawing board for three years, five years to repair the house, Ten years as girders. ” According to the survey determination: the general ten-year-old Paulownia diameter growth up to 25 to 40 cm, single volume of 0.3 to 0.5 cubic meters. If adopted