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作 者 ：岳春雷,江洪,朱荫湄

期 刊 ：生态学报 2002年 22卷 5期 页码：793~796

关键词：濒危植物；南川升麻；种群动态；Leslie模型；

Keywords:endangered plant, Cimicifuga nanchuanensis, population dynamics, Leslie model,

摘 要 ：运用种群静态生命表、生殖力表和 Leslie矩阵模型 ,研究了中国特有的濒危植物南川升麻种群数量动态过程。结果表明 ,南川升麻种群为衰退型种群 ,种群的净增殖率、内禀增长率和周限增长率较低 ,种群世代周期偏长 ,在 2 5 a内种群幼苗数量和总数量呈现出持续下降的趋势。南川升麻种群经历了两次死亡高峰期 ,受到了环境筛的强烈过滤作用。

Abstract:Cimicifuga nanchuanensis is an endangered plant species, only distributed in Jinfu Mountain, Sichuan Province, China. At present, there exists a population. Based on overall investigation of age structure, seed production and seed natural germination rate etc, the numeric dynamics of Cimicifuga nanchuanensis population was studied by application of static life table, fecundity schedule and Leslie matrix. The results were as follows: Its net reproductive rate ( R 0 ), intrinsic rate of increase ( r m ) ...

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