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作 者 ：李淑琴, 张纪林, 肖开生

期 刊 ：植物生态学报 1991年 15卷 4期 页码：344-354

关键词：木兰科；生长特性；Logistic模型；速生长量；

Keywords:Magoliaceae, Growth characteristic, Logistic model, Fast growing inocement,

摘 要 ：本文应用定性和定量分析相结合的研究方法，对南京地区引种的13种木兰科树种进行了生长特性的分析和比较。1．主成分(PCA)排序出的速生树种，幼林年平均生长量大于对照树种广玉兰，一年中有两次生长高峰，速生点多数在梅雨季节。 ．2．木兰科树种的季节生长规律符合logistic模型。通过对模型求导或参数求解，能够分别揭示出各树种的速生点、速生期和速生长量等信息，从而为树木生长发育规律的进一步认识及利用提供了理论依据。3．树木速生时间和最大生长速度的乘积与树木的生长量之间存在着极显著的线性相关关系。

Abstract:

The analysis and comparision of the growth charactristics of 13 tree species of Magnoliaceae were carried out by using qualitative and quatitative analysis. The results showed the followings:

1. The ordination of fast-growing tree species by principal component analysis indicated that their mean increment is higher than that of Magnolia grandiflora used as control in the experiment. The fast-growing species showed two growth peaks during seasonal growth, and the fast-growing point is most likely to appears from middle of June or July.

2. The seasonal growth can be expressed by a Logistic model. By parameterization of the model with the experiment data, some information such as fast-growing point, fast-growing period and value of growth characteristics in each tree species can be obtained.

3. There is a significant linear corelation between tree growth increment and the product of growth time and maxium speed of growth.

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