| 北京山地植物物种多样性的垂直分布规律 |
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| 引用本文： | 邢韶华,崔国发,林大影,姚永刚,李惠伶,杨树云.北京山地植物物种多样性的垂直分布规律[J].北京林业大学学报,2010(Z1). |
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| 作者姓名： | 邢韶华 崔国发 林大影 姚永刚 李惠伶 杨树云 |
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| 作者单位： | 北京林业大学自然保护区学院;北京西山试验林场;北京市八达岭林场;北京市怀柔区林业种子苗木管理站; |
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| 基金项目： | 北京市科委项目(Z08050602970802); 北京林业大学青年教师启动基金项目 |
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| 摘 要： | 为向北京市植物多样性保护与恢复提供技术支持,根据实地样地调查结果,分析了北京山地植物多样性随海拔梯度的变化规律。结果表明在各海拔段内物种丰富度相差不大,大部分样地内物种数在35种左右,乔木样地内物种数大部分在35～40种之间,灌丛样地内平均物种数一般低于35种。Margalef丰富度指数的变化可以很明显的划分为3段,在海拔800m以下小于2.3,海拔800～1700m之间大于2.3,海拔1700m以上又小于2.3。Shannon-Wiener指数和Simpson指数的变化趋势基本上与Margalef丰富度指数相同。物种多样性指数和丰富度指数均在海拔梯度上存在一个抛物线状的分布规律。Wilson指数和群落结构变异指数(CSV)在海拔700～900m和1300～1500m的范围呈现出2个高峰,说明两个海拔范围内物种交替速度快,物种间的差异性大。植物多样性随海拔梯度的变化除了受海拔梯度影响以外,还受到人为干扰等其他因素的影响,因此在分析物种多样性指数时,应剔除非研究因素带来的影响。不同的物种多样性指数,在分析同一现象时,可能出现不同的变化趋势,它们对物种多样性的指示应从指数的计算方法上解释。
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| 关 键 词： | 北京山地 物种多样性 海拔梯度 分布规律 |
Distribution of plant diversity along an altitudinal gradient in mountains of Beijing |
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| XING Shao-hua,CUI Guo-fa,LIN Da-ying,YAO Yong-gang,LI Hui-ling,YANG Shu-yun. College of Nature Conservation,Beijing Forestry University,P.R. China, West Mountaina Trial Forest Farm,Beijing,P.R.China, Beijing Badaling Forest Farm,Yanqing County, Forest Seed , Seedling Center of Huairou District,P.R.China..Distribution of plant diversity along an altitudinal gradient in mountains of Beijing[J].Journal of Beijing Forestry University,2010(Z1). |
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| Authors: | XING Shao-hua CUI Guo-fa LIN Da-ying YAO Yong-gang LI Hui-ling YANG Shu-yun College of Nature Conservation Beijing Forestry University PR China West Mountaina Trial Forest Farm Beijing PRChina Beijing Badaling Forest Farm Yanqing County Forest Seed Seedling Center of Huairou District PRChina |
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| Institution: | XING Shao-hua1,CUI Guo-fa1,LIN Da-ying2,YAO Yong-gang3,LI Hui-ling4,YANG Shu-yun4. 1 College of Nature Conservation,Beijing Forestry University,100083,P.R. China,2 West Mountaina Trial Forest Farm,Beijing,100093,P.R.China,3 Beijing Badaling Forest Farm,Yanqing County,102112,4 Forest Seed and Seedling Center of Huairou District,101400,P.R.China. |
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| Abstract: | In order to protect and recover the plant diversity in Beijing, we analyzed the variety of plant diversity along an altitudinal gradient based on field investigations. Results showed that species richness differs slightly at different elevations. There are about 35 species in most plots with slight fluctuation, 35-40 species in arbor plots and less than 35 species in shrub plots. Variation of Margalefindex can be divided into three stages: less than 2.3 at elevations below 800 m, more than 2.3 at 800-1 700 ... |
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| Keywords: | mountains in Beijing plant diversity altitudinal gradient distribution variation |
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