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林业科学 ›› 2012, Vol. 48 ›› Issue (2): 9-15.doi: 10.11707/j.1001-7488.20120202

• 论文 • 上一篇    下一篇

安徽琅琊山青檀种群空间格局

张莉1,2,3, 张小平1,2,3, 陆畅1, 李晓红1   

  1. 1. 安徽师范大学生命科学学院 芜湖 241000;2. 安徽省重要生物资源保护与利用研究重点实验室 芜湖 241000;3. 生物环境与生态安全安徽省高校重点实验室 芜湖 241000
  • 收稿日期:2011-01-12 修回日期:2011-12-30 出版日期:2012-02-25 发布日期:2012-02-25
  • 通讯作者: 张小平

Spatial Pattern of Pteroceltis tatarinowii Populations in Langya Moutain of Anhui Province

Zhang Li1,2,3, Zhang Xiaoping1,2,3, Lu Chang1, Li Xiaohong1   

  1. 1. College of Life Science, Anhui Normal University Wuhu 241000;2. Key Laboratory for the Conservation and Utilization of Important Biological Resources, Anhui Province Wuhu 241000;3. Key Laboratory of Biotic Environment and Ecological Security, Anhui Province Wuhu 241000
  • Received:2011-01-12 Revised:2011-12-30 Online:2012-02-25 Published:2012-02-25

摘要:

利用点格局O-Ring统计法,分析安徽省琅琊山青檀种群的空间分布格局。结果表明:青檀种群趋于小龄化,种群结构呈倒"J"型,属增长型种群; 种群中Ⅰ龄级个体在r<25 m的尺度上呈集群分布; Ⅱ龄级个体呈随机分布,随龄级增大,逐渐趋于均匀分布; 不同龄级间青檀个体的关联性研究表明,只有Ⅰ龄级和Ⅱ龄级个体在r>8 m的尺度上呈正关联,其余各龄级间均无显著关联。

关键词: 青檀种群, 琅琊山, 点格局分析, 空间分布格局, 空间关联

Abstract:

The spatial distribution patterns and associations of different ages of P. tatarinowii were analysed in Langya Mountain, Anhui Province by O-Ring statistics in point patterns analysis. The results showed that the P.tatrinowii population was of an increasing one, the age class tended to be young ages and the age structure presented a reversedly J-shaped pattern. The age-classⅠexhibited a clumped spatial distribution at the scale of r<25 m. The age-classⅡexhibited a random spatial distribution the others displayed the pattern from random to the well-proportioned distribution with increasing the age-class; The associations of the all different ages showed non-associations except the first and the second age-classes that were positively related at the scale of r>8 m.

Key words: population of Pteroceltis tatarinowii, Langya Mountain, point pattern analysis, spatial distribution pattern, spatial associations

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