杂交马褂木人工林生长规律及趋势研究

摘要

[ Objective ] The study aimed to explore the growing law and trends of Liriodendron Chinense × L Tulipifera plantation on sandy loam. [ Method ] On the base of investigating sample area, we studied the growing law of DBH, tree height and volume of Liriodendron Chinense × L Tulipifera plantation by analyzing sample trees, and speculated the growing trends by the use of Logistic equation. [ Result] Liriodendron Chinense × L Tulipifera plantation grows fast, with average DBH, tree height and volume grow up to 22.9 cm, 20. 6 m and O. 206 6 m3 respectively in 6 years old stand. The stage of growth is obvious; fast-growing period of stand is from 4 to 8 years after planting with more than 60％ of mass growth. [ Conclusion ] All those provide theoretical foundation for the operating management of Liriodendron Chinense × L Tulipifera plantation.%[目的]研究杂交马褂木人工林在冲击沙壤土地区的生长规律和趋势.[方法]在标准地调查基础上,采用标准木解析法研究杂交马褂木人工林胸径、树高和材积生长规律,采用Logistic方程模拟生长并推测生长趋势.[结果]杂交马褂木生长迅速,6年生林分平均胸径、树高和材积分别为22.9 cm、20.6 m和0.206 6 m;杂交马褂木生长具有阶段性,速生期为造林后4～8年,速生期生长量占总生长量60%以上.[结论]为杂交马褂人工林经营管理提供理论依据.