羊草(Leymus chinensis)种群无性系种群动态的初步研究  

DYNAMICS OF A CLONAL LEYMUS CHINENSIS POPULATION IN THE SONGNEN STEPPE IN NORTHEASTERN CHINA

作　　者：王昱生[1] 

机构地区：[1]东北农业大学,哈尔滨150030

出　　处：《生态学报》1993年第4期291-299,共9页Acta Ecologica Sinica

基　　金：国家自然科学基金

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.

关 键 词：羊草 种群 无性系 种群动态 生活史 

分 类 号：Q949.714.2[生物学—植物学]