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以１年生泡桐埋根苗为对象，研究苗木年生长规律。采用Ｇｏｍｐｅｒｔｚ方程和Ｌｏｇｉｓｔｉｃ方程模拟高生长进程，结果表明；泡桐幼苗１年内高的生长呈Ｌｏｇｉｓｔｉｃ型曲线；生长最佳回归方程可用１条双Ｌｏｇｉｓｔｉｃ曲线表示；速生期约在７月１０日至８月１５日之间。
The 1-year-old Paulownia seedlings were taken as the object to study the annual growth of seedlings. The Gompertz equation and Logistic equation were used to simulate the high growth process. The results showed that the high growth of Paulownia seedlings in one year was Logistic-type curve, the best growth regression equation was represented by a double-Logistic curve, and the fast-growing period was from July 10 to August Between the 15th.