| 大树杜鹃种群空间分布及生命表分析 |
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| 引用本文： | 李贵祥,柴勇,邵金平,王元忠,和丽萍,方波.大树杜鹃种群空间分布及生命表分析[J].福建林学院学报,2016(3):332-336. |
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| 作者姓名： | 李贵祥 柴勇 邵金平 王元忠 和丽萍 方波 |
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| 作者单位： | 1. 云南省林业科学院,云南 昆明,650201;2. 云南省农业科学院药用植物研究所,云南 昆明,650200 |
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| 基金项目： | 国家林业公益性行业科研专项“高黎贡山主要珍稀濒危树种近地保护技术研究”(201304306)。 |
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| 摘 要： | 对云南省主要的大树杜鹃分布区域腾冲县进行调查分析,大树杜鹃空间格局采用方差/平均数比率检验,其值为1.27,属成群分布,其种群结构特征为：从大树杜鹃幼树、中树、大树分布趋势和种群年龄结构图来看,大树杜鹃种群呈稳定增长的格局；从静态生命表来看,大树杜鹃种群在第1径级死亡数量最多,第2径级以后死亡率逐渐减少,个别径级由于总的个体数量已不多,死亡数量较少,但死亡率却呈现较高的水平；平均生命期望值( ex )在第7径级(30 cm
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| 关 键 词： | 大树杜鹃 种群特征 高黎贡山 空间分布 生命过程 |
Spatial distribution and life table analysis of Rhododendron protistum population |
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| Abstract: | Investigation and study were conducted in Tengchong County of Yunnan Province, the main distribution area of Rhododendron protistum var. giganteum( Forr. ex Tagg) Chamberlain, to search the population structure and characteristics of this species. The spatial distribution pattern was tested by the ratio of variance and mean, and the value was 1. 27. The population characteristics were as the following. The population showed the pattern of steady growth evaluating from the distribution tendency of young trees, mid-age trees and mature trees, and from the age structure. The static life table showed that the mortality of the diameter class 1 was the highest, the mortality gradually decreased from the class 2. Among those, there was a certain diameter class with low number of dead tree since the total tree number of the specific diameter class was also quite low, however the mortality was high. The life expectancy of the diameter class 7 (30 cm
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| Keywords: | Rhododendron protistum var giganteum ( Forr ex Tagg ) Chamberlain population characteristics Gaoligong mountains spatial distribution vital processes |
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