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生态学杂志 ›› 1991, Vol. ›› Issue (4): 18-22.

• 研究报告 • 上一篇    下一篇

不同环境条件下芒萁群落生物量动态规律的研究

陈建   

  1. 贵州师范大学生物系, 贵阳 550001
  • 收稿日期:1989-11-10 修回日期:1990-04-05 出版日期:1991-08-10

Dynamic Pattern of the Biomass of Dicranopteris dichotoma Communities in Different Environments

Chen Jian   

  1. Department of Biology, Guizhou Normal University, Guiyang 550001
  • Received:1989-11-10 Revised:1990-04-05 Online:1991-08-10

关键词: 青杨, 雌雄异株, 铝胁迫, 生理生态特征

Abstract: Two sample plots(plot Ⅰ, pure Dicranopteris dichotoma community and plot Ⅱ, D. dichotoma community under Chinese fir forest)are comparatively investigated, Because of their environmental differences, the two communities have different dynamic patterns of growth and biomass: the maximum growth speed and aboveground-underground biomass in plot Ⅰ are at September, whereas those in plot Ⅱ are at October, As multiple regression anatysis indicates, the aboveground biomass of Dicranopteris dichotoma communities is correlated with the amount of pinnules, length of petioles and environmental illumination, while the underground biomass is correlated with the abovoground biomass, amount of pinnules, length of petioles, environmental illumination and soil moisture content.

Key words: Populus cathayana, dioecious, aluminum stress, ecophysiological , characteristics