天然毛竹无性系种群的结构动态与数量统计  

Structure dynamics and quantitative statistics of natural Phyllostachys edulis clone population

作　　者：郑进烜[1] 董文渊[2] 陈冲[3] 

机构地区：[1]云南省林业调查规划院,云南昆明650051 [2]西南林学院职业技术学院,云南昆明650224 [3]衡阳师范学院经济与法律系,湖南衡阳421008

出　　处：《南京林业大学学报（自然科学版）》2009年第5期135-138,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：云南省中青年学术技术带头人后备人才资助项目(2007PY01-17);中国-欧盟生物多样性保护项目(ECBP)(00056784)

摘　　要：利用生命表和生存曲线对海子坪天然毛竹无性系种群的结构动态和数量进行统计分析,并对分株年龄的鉴别特征进行了研究。结果表明:(1)天然毛竹无性系种群随分株年龄增加,所占的分株比例逐渐减小;(2)天然毛竹无性系种群动态生命表中的生存曲线介于B型与C型(凹型)之间,是一条较为平缓的凹型曲线,反映出整个同生群幼体的死亡率较高,成体的死亡率降低并且接近于不变;(3)静态生命表中的生存曲线介于B型和C型(凹型)之间,总的趋势反映出B2型生存曲线的特点,说明该种群具有死亡率较恒定的特点。Structure dynamics and quantitative statistics of clone plant population are two basic characteristics of populations. The demography of natural Phyllostachys edulis clone population in Haiziping was studied by using life table and surviving curve, and the method of age estimation of ramet was also discussed. The results demonstrated that： （ 1 ） In natural Ph. edulis clone population, the general tendency of age structure presented as that proportion of ramet decreases gradually with the increasing of age of ramet. （2） The survivorship curve in dynamic life table of natural Ph. edulis clone population was between B type and C type. It was a gentle inclined concave curve. The survivorship curve showed that the larvae mortality of hole cohort was relatively high, the mortality of adult was decrease and tend to invariant. （3） The survivorship curve in static life table was between B type and C type, the total trend showed characteristics of survivorship curve of B2 type. The characteristic of the population was that mortality of this population was constant which was illustrated by the survivorship curve in static life table.

关 键 词：天然毛竹林 无性系种群 结构动态 数量统计 

分 类 号：S718.5[农业科学—林学]