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.
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.
出处
《河南科学》
2010年第2期176-178,共3页
Henan Science
基金
河南省教育厅项目(2009B180024)
许昌学院优秀青年骨干教师资助项目
关键词
植物多样性
海拔梯度
疏林灌丛
贺兰山
vegetation diversity
altitudinal gradient
prairie shrubland
Helan Mountain
