干旱区生态环境知识资源中心(Arid): 青藏铁路格尔木-错那湖段沿线物种多样性分析

Arid

	青藏铁路格尔木-错那湖段沿线物种多样性分析
其他题名	Species diversity of alpine vegetation along the Geermu to Cuona Lake section of Qinghai - Tibet Railway
	殷代英; 韩庆杰; 屈建军; 肖建华; 安志山; 李毅
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2013
卷号	27 期号:12 页码:152-160
中文摘要	以青藏铁路线为样带中心点,在格尔木-错那湖段沿线设置样地、样方,重点调查原生植被物种丰富度、盖度、高度等基本数据,多样性指标分析结果表明:沿线植被主要分布种有90个,隶属24个科,主要建群种为紫花针茅(Stipa purpurea)、棘豆(Oxytropis DC.)、青藏苔草(Carex moorcroftii Falc)等,划分出了4个不同的生态分区;物种丰富度和盖度沿铁路线由北向南呈波动上升趋势,平均高度呈逐渐降低趋势。运用Jaccard和Cody指数分析样地之间的beta多样性,结果表明:随着样地纬度方向间距的增大,Jaccard和Cody指数分别呈下降和上升趋势,相邻样地间物种相似度最高,物种沿纬度方向逐渐替代规律比较明显。
英文摘要	A field survey was conducted to study the characteristics of the road side plant communities along the Qnghai - Tibet Railway from Geermu to Cuona Lake.The spatial variations of species richness,vegetation cover, and height of species following latitude direction were analyzed based on the field data.The results show that in the high and cold vegetation along railway there are 90 species,constructive species are Stipa purpurea,Oxytropis DC and Carex moorcroftii Falc.Alpine vegetation community along railway from Geermu to Cuona Lake can be divided into four ecological regions: the alpine desert and alpine valley shrub vegetation from Geermu to Budongquan, alpine grassland vegetation at altitude from Budongquan to Tuotuo Lake.The change tendency of species richness gradually increases firstly,then decreases and then increases; the average species coverage also present the similar change trend; average height is gradually decreased.beta diversity was studied by using Jaccard and Cody index.Jaccard index decrease and Cody index increases with the increase of the latitude distance.There is the highest similarity between adjacent sample.The gradual succession of species along the latitude direction is very obvious.
中文关键词	高寒植被 ; 物种多样性 ; cody指数 ; Jaccard指数 ; 青藏铁路沿线 ; 生态分区
英文关键词	Qinghai - Tibet Railway plant species Cody index Jaccard index
语种	中文
国家	中国
收录类别	CSCD
WOS类目	BIODIVERSITY CONSERVATION
WOS研究方向	Biodiversity & Conservation
CSCD记录号	CSCD:4961788
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229670
作者单位	中国科学院寒区旱区环境与工程研究所,敦煌戈壁荒漠生态与环境研究站, 甘肃省风沙灾害防治工程技术研究中心, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	殷代英,韩庆杰,屈建军,等. 青藏铁路格尔木-错那湖段沿线物种多样性分析[J]. 中国科学院西北生态环境资源研究院,2013,27(12):152-160.
APA	殷代英,韩庆杰,屈建军,肖建华,安志山,&李毅.(2013).青藏铁路格尔木-错那湖段沿线物种多样性分析.干旱区资源与环境,27(12),152-160.
MLA	殷代英,et al."青藏铁路格尔木-错那湖段沿线物种多样性分析".干旱区资源与环境 27.12(2013):152-160.