摘要
采用聚集度（C，I，Iδ．X和CA等）及IwaoX－回归和Taylor回归分析方法研究了南方红豆杉林下幼苗的分布型．研究结果表明，南方红豆杉在林下的分布呈聚集分布型（α＞0，β＝1）。对IwaoX－X的回归方程参数α和β进行随机偏离度的检验，结果α值和0差异极显著，β值与1差异不显著。
The spatial distribution pattern of maire yew, Taxus chinensis var. maireiseedlings under its natural forest was studied,using the degree of aggregation (C, I, I, X, andCA ) and Iwao X -X regressional and Taylor regressional analysis- Results indicated that the un-derstoried maire yew seedlings are distributed aggregatively (α>0,β= 1 ). Random deviation testwas employed to analyse aand P, the parameters of Iwao X' -X regressional equation, revealingthat the value of a is significantly different from O, while the value of β is not different from 1 byany significance.
出处
《经济林研究》
1998年第4期5-8,共4页
Non-wood Forest Research
关键词
南方红豆杉
空间分布
聚集度指标
幼苗
Maire yew (Taxus chinensis var. mairei)
Spatial distribution
Index of aggregation
