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东灵山糠椴林优势种种群结构与分布格局

苏日古嘎;张金屯;程佳佳;张斌   

  1. 北京师范大学生命科学学院, 北京 100875
  • 收稿日期:2008-11-01 修回日期:1900-01-01 出版日期:2009-07-10 发布日期:2009-07-10

Population structure and distribution pattern of dominant species in Tilia mandshurica forest in Dongling Mountain of Beijing.

SURIGUGA;ZHANG Jin-tun;CHENG Jia-jia;ZHANG Bin   

  1. College of Life Sciences, Beijing Normal University, Beijing 100875, China
  • Received:2008-11-01 Revised:1900-01-01 Online:2009-07-10 Published:2009-07-10

摘要: 通过重要值、种群径级结构、存活曲线、点格局分析等方法研究了北京市东灵山糠椴林优势种种群结构和分布格局在时间上和空间上的变化。结果表明:糠椴种群重要值较大,其幼苗比例较大,是增长型种群,而大叶白蜡树和蒙椴属稳定型种群;糠椴与大叶白蜡树和蒙椴大尺度上均呈显著负相关,糠椴种群分布格局呈集群分布。

关键词: 巨桉人工林, 土壤微生物, 生态分布

Abstract: The spatiotemporal variations in the population structure and distribution pattern of dominant species in Tilia mandshurica forest in Dongling Mountain of Beijing were studied in terms of importance value, size structure, survivorship curve, and point pattern analysis. In the forest, T. mandshurica population had a higher importance value, and belonged to growing population because of the greater proportion of T. mandshurica seedling individuals. Fraxinus rhynchophylla and T. mongolica populations were of stable populations. T. mandshurica population had significant negative correlations with F. rhynchophylla and T. mongolica populations on large scale, and was in clumped distribution.

Key words: Eucalyptus grandis, Soil microbes, Ecological distribution