摘要
本文根据1985—1990年在天然羊草群落中对羊草种群无性系的观测与统计分析,在研究羊草种群无性系生活周期的基础上,探讨了其种群动态,建立了用转移概率矩阵表示的种群动态模型。通过用两种营养繁殖系数R_(v1)和R_(v2)模拟种群密度变化,发现用转移概率矩阵种群动态模型和现存种群营养繁殖系数R_(v2)可以预测羊草种群密度。
The paper, a synthesis based on data generated by an investigation in a clonal Leymus chinensis population for the period 1985-1990,deals with the development patterns and life - cycle behaviour of individual tiller, and the patterns of vegetative reproduction and tiller death, or population dynamics, within clone, The model of population dynamics of the clone was structured in terms of the transition probality matrix. Population deasity was also predicted with Rv1 from past population and Rv2 from present one.
出处
《生态学报》
CAS
CSCD
北大核心
1993年第4期291-299,共9页
Acta Ecologica Sinica
基金
国家自然科学基金
关键词
羊草
种群
无性系
种群动态
生活史
clonal Leymus chinensis population, life cycle, population dynamics , population model.
