| 安徽琅琊山青檀种群空间格局 |
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| 引用本文： | 张莉,张小平,陆畅,李晓红. 安徽琅琊山青檀种群空间格局[J]. 林业科学, 2012, 48(2): 9-15 |
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| 作者姓名： | 张莉 张小平 陆畅 李晓红 |
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| 作者单位： | 1. 安徽师范大学生命科学学院 芜湖241000;安徽省重要生物资源保护与利用研究重点实验室 芜湖241000;生物环境与生态安全安徽省高校重点实验室 芜湖241000
2. 安徽师范大学生命科学学院 芜湖241000 |
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| 基金项目： | 国家自然科学基金项目(30970292,30840020) |
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| 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<25m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>8m的尺度上呈正关联,其余各龄级间均无显著关联。
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| 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 |
Spatial Pattern of Pteroceltis tatarinowii Populations in Langya Moutain of Anhui Province |
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| Zhang Li , Zhang Xiaoping , Lu Chang , Li Xiaohong. Spatial Pattern of Pteroceltis tatarinowii Populations in Langya Moutain of Anhui Province[J]. Scientia Silvae Sinicae, 2012, 48(2): 9-15 |
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| Authors: | Zhang Li Zhang Xiaoping Lu Chang Li Xiaohong |
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| Affiliation: | 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) |
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| 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. |
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| Keywords: | population of Pteroceltis tatarinowii Langya Mountain point pattern analysis spatial distribution pattern spatial associations |
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