| 湖北青檀野生种群数量结构特征 |
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| 引用本文： | 汪殿蓓,李建华,田春元,刘仁阳,王伟.湖北青檀野生种群数量结构特征[J].南京林业大学学报(自然科学版),2011,35(6). |
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| 作者姓名： | 汪殿蓓 李建华 田春元 刘仁阳 王伟 |
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| 作者单位： | 孝感学院生命科学技术学院,湖北孝感,432000 |
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| 基金项目： | 湖北省自然科学研究重大项目(Z20092601) |
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| 摘 要： | 从单生和丛生两个生长水平,以湖北省大贵寺国家森林公园野生青檀种群为例探讨了种群的年龄结构、生态位宽度、静态生命表等数量结构特征及变化趋势。结果表明:研究区野生青檀单生植株类群的平均高度为10.26 m,丛生植株类群的平均高度为17.01 m;年龄结构分析表明该青檀种群为稳定种群,其中单生植株类群为增长型,丛生植株类群为衰退型;种群的更新以种子繁殖方式为主;生态位宽度测算结果表明单生植株类群对环境资源的利用略优于丛生植株类群;生命表分析表明单生植株类群幼树发育为成年个体时,幼龄植株具有较高死亡率;丛生植株类群的中龄级个体具有高死亡率。因此,应加强野外人工辅助育苗以提高青檀种子的发芽率及幼苗的成活率,并大力保护中龄级个体,以促进种群的更新和发展。
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| 关 键 词： | 青檀野生种群 年龄结构 生态位宽度 静态生命表 湖北 |
Numeric and structural characteristics of wild Pteroceltis tatarinowii population in Daguisi national forest park,Hubei province |
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| WANG Dianpei,LI Jianhua,TIAN Chunyuan,LIU Renyang,WANG Wei.Numeric and structural characteristics of wild Pteroceltis tatarinowii population in Daguisi national forest park,Hubei province[J].Journal of Nanjing Forestry University(Natural Sciences ),2011,35(6). |
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| Authors: | WANG Dianpei LI Jianhua TIAN Chunyuan LIU Renyang WANG Wei |
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| Institution: | WANG Dianpei,LI Jianhua,TIAN Chunyuan,LIU Renyang,WANG Wei (School of Life Science and Technology,Xiaogan University,Xiaogan 432000,China) |
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| Abstract: | Numeric and structural characteristics of wild Pteroceltis tatarinowii population in Daguisi national forest park in Hubei province were studied at two levels(single individuals and tillers),which include age structure,niche width,static life table and so on,and the development trend of the population was also discussed.The results showed that the average height of single individuals group was 10.26 m and that of tillers group was 17.01 m.The age structure indicated that the population was stable,and the si... |
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| Keywords: | Pteroceltis tatarinowii wild population age structure niche width static life table Hubei province |
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