| 祁连山青海云杉群落物种组成及α多样性垂直分布 |
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| 引用本文： | 孟好军,刘建泉,刘贤德,赵维俊.祁连山青海云杉群落物种组成及α多样性垂直分布[J].生态环境,2011,20(3):435-440. |
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| 作者姓名： | 孟好军 刘建泉 刘贤德 赵维俊 |
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| 作者单位： | 1. 甘肃省祁连山水源涵养林研究院,甘肃,张掖,734000
2. 祁连山国家级自然保护区管理局,甘肃,张掖,734000 |
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| 基金项目： | 甘肃祁连山青海云杉林生态系统动态监测研究，甘肃省森林生态与冻土水文水资源重点实验室项目 |
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| 摘 要： | 通过对祁连山自然保护区青海云杉群落物种组成及α多样性垂直分布格局的研究,结果表明：祁连山自然保护区青海云杉群落内有维管植物25科51属96种,其中乔木4种,灌木29种,草本62种;植物种相对集中分布于海拔2 680～2 890 m的阴坡;随海拔梯度升高,群落内植物种数减少,且相邻样地的共有种数呈不明显的先减少而后增加的趋势,Margalef指数、Shannon-Wiener指数和Pielou指数呈降低趋势;不同林型的植物种的丰富度依次为：青海云杉混交林〉草类-青海云杉林〉苔藓-青海云杉林〉灌木-青海云杉林〉马先蒿-青海云杉林。
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| 关 键 词： | 祁连山保护区 青海云杉群落 物种丰富度 α多样性 垂直分布格局 |
Species composition and vertical distribution pattern of a diversity of the Picea crassifolia community in Qilian mountains of Gansu, China |
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| MENG HaoJun,LIU JianQuan,LIU XianDe,ZHAO WeiJun.Species composition and vertical distribution pattern of a diversity of the Picea crassifolia community in Qilian mountains of Gansu, China[J].Ecology and Environmnet,2011,20(3):435-440. |
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| Authors: | MENG HaoJun LIU JianQuan LIU XianDe ZHAO WeiJun |
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| Institution: | MENG HaoJun1,LIU JianQuan2,LIU XianDe1,ZHAO WeiJun1 1.Institute of Water Resource Conservation Forest in Qilian Mountains of Zhangye,Zhangye 734000,China,2.National Nature Reserve Bureau of Qilian Mountains,China. |
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| Abstract: | Through the species composition and vertical distribution pattern of α diversity of the Picea crassifolia community in Qilian Mountains national nature reserve are investigated,The results showed that：Picea crassifolia community in Qilian Mountains National Nature Reserve has 96 vascular plant species,belonging to 51 genera and 25 families,among them there were 4 trees,29 shrubs,and 62 herbs;the plant species relative-centralized distributed shady slopes from 2680 m to 2890 m above altitude;plant species decreased in the community and adjacent plots of shared species gradually increased and then decreased along the altitudinal gradient increase,Margalef index,Shannon-Wiener index and Pielou index gradually decreased;the species richness of different forest type were：Picea crassifdia mixed forestPedicularis-Picea crassifdia forestshrub-Picea crassifdia forestherb-Picea crassifdia forestmoss-Picea crassifdia forest. |
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| Keywords: | Qilian Mountains National Nature Reserve Picea crassifolia community species composition α diversity vertical distribution pattern |
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