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北京东灵山刺五加生存群落功能多样性研究

发表时间:2013-09-15  浏览量:1287  下载量:618
全部作者: 王鑫,张金屯
作者单位: 北京师范大学生命科学学院
摘 要: 目的:刺五加[Axanthopanax senticosus (Rupret Mzxim) Harms]是一种重要的药用保护植物,研究北京东灵山刺五加生存群落功能多样性的变化及其与环境的关系,为刺五加及其生存群落的保护提供参考。方法:用功能属性多样性指数(functional attribute diversity,FAD),修正的功能属性多样性指数(modified FAD,MFAD),FDp(plot-based functional diversity),FDc(community-based functional diversity),Rao功能多样性指数研究东灵山刺五加生存群落功能多样性变化及其与物种多样性和环境的关系,不同刺五加生存群落的功能多样性变化,刺五加生存群落功能多样性对环境因子的响应等。结果:东灵山刺五加生存群落功能多样性比较丰富,且变化明显;功能多样性与物种丰富度和物种多样性显著相关;在环境因子中,坡度对物种功能多样性有显著的影响;不同群落类型功能多样性具有显著差异,在刺五加为灌木层优势种的群落中功能多样性较低。结论:功能多样性维持在一定的水平有利于刺五加的保护。
关 键 词: 保护生物学;刺五加;生存群落;功能多样性;东灵山
Title: Functional diversity of Axanthopanax senticosus communities in Dongling mountain of Beijing, China
Author: WANG Xin, ZHANG Jintun
Organization: College of Life Sciences, Beijing Normal University
Abstract: Objective: Axanthopanax senticosus (Rupret Mzxim) Harms is a well-known medicinal and protected plant species. Study of functional diversity of A.senticosus communities and its relationship with environment is important and fundamental to the conservation of A.senticosus in Dongling mountain. Methods: Functional attribute diversity (FAD), modified FAD (MFAD), plot-based functional diversity (FDp), community-based functional diversity (FDc) and Rao indices were used to analyze the relationships of functional diversity, species diversity and environmental factors. Results: Functional diversity was rich and varied greatly in A.senticosus communities. Functional diversity was significantly correlated with species richness and species heterogeneity. Functional diversity was significantly correlated with slope in A.senticosus communities. Communities dominated by A.senticosus in scrub layer had a comparatively low functional diversity. Conclusion: Functional diversity should be maintained in some extent for conservation of A.senticosus.
Key words: conservation biology; Axanthopanax senticosus; survival community; functional diversity; Dongling mountain
发表期数: 2013年9月第17期
引用格式: 王鑫,张金屯. 北京东灵山刺五加生存群落功能多样性研究[J]. 中国科技论文在线精品论文,2013,6(17):1663-1670.
 
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