| 贺兰山西坡植物多样性研究 |
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| 引用本文： | 张义辉,郑敬刚,何明珠,李新荣.贺兰山西坡植物多样性研究[J].河南科学,2010,28(2):176-178. |
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| 作者姓名： | 张义辉 郑敬刚 何明珠 李新荣 |
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| 作者单位： | 1. 许昌学院,城市与环境学院,河南,许昌,461000
2. 中国科学院寒区旱区环境与工程研究所,沙坡头沙漠试验研究站,兰州,730000 |
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| 基金项目： | 河南省教育厅项目，许昌学院优秀青年骨干教师资助项目 |
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| 摘 要： | 研究了贺兰山西坡浅山带植物多样性特征.结果表明,不同植被带的植物多样性明显不同,荒漠灌丛带的物种丰富度、多样性和均匀度指数均随海拔的升高而增加;荒漠草原带的物种丰富度随海拔的升高呈现先增加而后降低的特点,其多样性和均匀度则随海拔的升高呈现先降低而后增加的趋势;疏林灌丛带的丰富度、多样性和均匀度指数随海拔的升高先增加而后基本保持不变.
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| 关 键 词： | 植物多样性 海拔梯度 疏林灌丛 贺兰山 |
The Characteristics of Vegetation Distribution and Its Diversity along the Low Mountain Sections of Arid Region |
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| Zhang Yihui,Zheng Jinggang,He Mingzhu,Li Xinrong.The Characteristics of Vegetation Distribution and Its Diversity along the Low Mountain Sections of Arid Region[J].Henan Science,2010,28(2):176-178. |
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| Authors: | Zhang Yihui Zheng Jinggang He Mingzhu Li Xinrong |
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| Institution: | 1. College of Urban Planning ＆ Environment Sciences,Xuchang University,Xuchang 461000,Henan China; 2. Shapotou Desert Research and Experiment Station,Cold and Arid Region Environmental and Enginnering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,China) |
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| Abstract: | This paper discusses the characteristics of vegetation diversity of low mountain sections in the west slope of Helan Mountain. The results show that,the index of species richness,diversity and evenness increase along the altitudinal gradient in the desert shrubland zone. In the desert grassland,with the increase of elevation,the index of species richness increases first,then reduce,on the contrary,the index of diversity and evenness reduces first,then increases. In the prairie zone,the index of species richness,diversity and evenness increases first,then keeps nearly unchangeable. |
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| Keywords: | vegetation diversity altitudinal gradient prairie shrubland Helan Mountain |
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