青海湖区河谷灌丛草地植被群落多样性研究  

Study on plant community diversity in valley shrub grassland of Qinghai Lake region

作　　者：祝存冠[1] 陈桂琛[1] 周国英[1] 韩友吉[1] 李锦萍[1] 

机构地区：[1]中国科学院西北高原生物研究所

出　　处：《草业科学》2007年第3期31-35,共5页Pratacultural Science

基　　金：国家中西部基金资助项目(K99-05-11)

摘　　要：通过对青海湖地区布哈河、沙柳河等几条较典型、较大的河谷灌丛植被及其环境因子的取样调查,分析其河谷边滩和河漫滩灌丛主要环境因子以及灌丛群落的种类组成、分布格局、群落特征等数据,研究该地区植被群落多样性与环境因子的关系、发现在青海湖地区河谷灌丛草地植物群落的多样性主要为物种丰富度所推动,物种均匀度起一定的辅助作用,生态优势度受物种丰富度的影响不大。In the papers, sample investigation on the valley shrub vegetation and environmental factors in several representative rivers at the Buha River, Shaliu River etc. in the Qinghai Lake area was done; analyzed main environmental factors for shrubs in marginal beach and floodplain of the va!ley~ and the species component of the shrub community, condition of distribution and community characteristics were studied. The relation between vegetation community diversity and environmental factors in the region was studied and discovered that the diversity of vegetation community was impelled by the species richness; species evenness had certainty assistant action. But the interaction was not quite evident between ecological dominance and species richness.

关 键 词：青海湖区 河谷灌丛 群落多样性 环境因子 

分 类 号：S812[农业科学—草业科学]