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安徽琅琊山青檀种群结构与空间分布格局研究

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2011年06期
页码:
782
栏目:
植物生态学与生物多样性保护
出版日期:
2011-12-25

文章信息/Info

Title:
Population structure and spatial distribution pattern of Pteroceltis tatarinowii in Langyashan Mountain of Anhui Province
作者:
张兴旺1 张小平2 郝朝运2 郭传友1
1.淮北师范大学 生命科学学院 资源植物生物学安徽省重点实验室, 安徽 淮北 235000; 2.安徽师范大学 安徽省重要生物资源保护与利用研究重点实验室, 安徽 芜湖 24100
Author(s):
ZHANG XingWang1 ZHANG XiaoPing2 HAO ChaoYun2 GUO ChuanYou1
1.Key Laboratory of Resources and Plant Biology of Anhui, School of Life Sciences, Huaibei Normal University, Huaibei 235000, China; 2.Key Laboratory of Conservation and Employment of Biological Resources of Anhui, Anhui Normal University, Wuhu 241000, China
关键词:
青檀 种群结构 分布格局
Keywords:
Pteroceltis tatarinowii population structure distribution pattern
分类号:
Q948
DOI:
-
文献标识码:
A
摘要:
通过设置500 m2样方8个,应用“相邻格子法”获取野外资料,采用空间序列代替时间的方法与6种聚集度指标,对安徽琅琊山青檀的种群结构与空间分布格局进行了研究。结果表明:(1)各样地的青檀种群结构大致可分为增长型、稳定型和衰退型3种类型;(2)不同样地青檀种群分布格局主要为集群分布;(3)不同发育阶段种群分布格局有所差异,总体上有集群分布向随机分布、聚集度高向聚集度低的变化趋势;(4)不同区组大小的青檀种群分布格局不同,但在不同样地之间差异不明显,种群的格局规模大体为16 m2和32 m2。青檀种群结构和格局动态与群落区域的小生境,青檀本身生物学、生态学特性以及人为干扰有密切关系。
Abstract:
Population structure and spatial distribution pattern of Pteroceltis tatarinowii in Langyashan Mountain of Anhui Province were studied in this paper. 8 plots of 500 m2 were respectively established. Sample data obtained in contiguous grid quadrate,substituted spatial series for time series and six aggregate indexes were used in this study. The results showed:(1)Population structure of P.tatarinowii in 8 plots presented growing,stable or senescent type;(2)Population distributions were mostly clumped;(3)At different developmental stages,distribution pattern presented a trend from clump to random and aggregation intensity decreased somewhat;(4)Size of blocks affected the spatial distribution pattern and the pattern scales of 8 plots were about 16 m2 and 32 m2. It proved that the spatial distribution pattern of P.tatarinowii populations were closely related to its biological and ecological characteristics,community composition,environmental factors and human disturbance.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2011-11-25