毛红椿8年生人工林生长过程研究

Research on growing process of eight-year-old Toona ciliata var. pubescens plantation

为了解毛红椿人工林的生长动态,并对其制定合理的经营措施,以江西省南昌县毛红椿8年生人工林的树高、胸径调查数据为基础,分析毛红椿的生长过程,拟合毛红椿人工林的树高、胸径和材积的生长模型。结果表明,Logistic方程对毛红椿树高拟合程度较好,幂函数对胸径拟合程度较好,抛物线方程对材积生长过程的拟合较好,且均通过了显著性检验。本研究为一定区域内毛红椿人工林树高、胸径、材积的生长预测提供理论参考,同时也为毛红椿人工林定向培育提供现实依据。

In order to understand the growth dynamics and carry out effective management measure, the growth processes were analyzed by the investigation data such as height and diameter at breast height （DBH） of eight-year-old Toona ciliata var. pubescens plantation in Nanchang County, Jiangxi Province. The growth equations of forest stand were fitted regarding height, DBH and stock volume. The result showed the Logistic equation simulated well for height growth, power function fitting DBH growth well, and parabola function going well with volume increase. All of them got through significance test. This research provides a theoretical basis for height, DBH and volume growth prediction of T. ciliata var. pubescens plantation in some specified region, also provide reference to oriented cultivation of T. ciliata var. pubescens plantation.