安徽琅琊山青檀种群结构与空间分布格局研究

张兴旺1; $22; $22; $21

引用本文:	张兴旺1，张小平2，郝朝运2，郭传友1.安徽琅琊山青檀种群结构与空间分布格局研究[J].广西植物,2011,(6):782-788.[点击复制]
	ZHANG Xing Wang1， ZHANG Xiao Ping2， HAO Chao Yun2， GUO Chuan You1.Population structure and spatial distribution pattern of Pteroceltis tatarinowii in Langyashan Mountain of Anhui Province[J].Guihaia,2011,(6):782-788.[点击复制]

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安徽琅琊山青檀种群结构与空间分布格局研究
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

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。

关键词: 青檀种群结构分布格局

DOI：

分类号:Q948

基金项目:

Population structure and spatial distribution pattern of Pteroceltis tatarinowii in Langyashan Mountain of Anhui Province

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 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

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.

Key words: Pteroceltis tatarinowii  population structure distribution pattern