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应用生态学报 ›› 1997, Vol. 8 ›› Issue (1): 77-82.

• 研究论文 • 上一篇    下一篇

亚热带中山地区草芦无性系种群的密度制约

杨允菲1, 傅林谦2   

  1. 1. 东北师范大学国家草地生态工程实验室, 长春 130024;
    2. 中国农业科学院畜牧研究所, 北京 100094
  • 收稿日期:1995-05-02 修回日期:1996-01-22 出版日期:1997-01-25 发布日期:1997-01-25
  • 基金资助:

    国家“八·五”科技攻关;国家自然科学基金

Density dependence of Phalaris aruandinacea clonal population on middle mountain region of subtropical zone of China

Yang Yunfei1, Fu Linqian2   

  1. 1. National Laboratory of Grassland Ecological Engineering, Northeast Normal University, Changchun 130024;
    2. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100094
  • Received:1995-05-02 Revised:1996-01-22 Online:1997-01-25 Published:1997-01-25

摘要: 亚热带中山立地条件下草芦无性系种群密度制约的定量分析结果表明,不同生长时期草芦无性系种群的平均蘖重、平均蘖叶重和平均蘖茎重均随着密度的增加呈幂函数下降.在开花期,种群的生殖生长已经受到种群的密度制约,营养蘖的生长不仅受到其密度制约,而且更大强度地受到种群的密度制约.不同生长时期种群的死亡率与密度之间均呈极显著负相关.

关键词: 草芦, 数量性状, 密度制约, 无性系种群, 微生物组, AM真菌, ACC脱氨酶, 印度梨形孢, 根际促植物生长细菌

Abstract: The quantitative analysis on the density dependence of Phalaris arundinacea clonal population on middle mountain regions of subtropical zone of China shows that mean tiller weight, mean weight of leaves per tiller and mean stem weight per tiller are decreased in power function with the increase of population density at different growing stages. At flowering stage, the reproductive development is restricted by the population density, and the vegetative growth not only by the tiller density, but also strongly by the population density. The death rate of population is negatively correlated with its density at different growing stages.

Key words: Phalaris arundinacea, Quantitative character, Density dependence, Clonal population, 1-aminocyclopropane-1-carboxylate deaminase, plant growth-promoting rhizobacteria, arbuscular mycorrhizal fungi, microbiome, Piriformospora indica