安徽农业科学2011，Vol.39Issue(20)：12250-12252,3.
青海海北不同退化程度矮嵩草植物群落特征研究
Characteristics of Kobresia humilis Community Structure at Different Degraded Levels in Northern Qinghai
摘要
Abstract
[Objective] To reveal structure and (unction of alpine meadow ecosystem and thus to provide a scientific basis for development, uti lization and scientific management of alpine meadow pasture as well as sustainable development of animal husbandry. [ Method] Characteristics of Kobresia humilis communities with primary vegetation ( community I) and degraded vegetation ( community II) were analyzed. [ Result] Species richness,biodiversity indices and biomass of the community I were respectively 42,3.531 and 3 553. 1 g/m2,which were respectively higher than those of the community II (37,2. 270 and 3 391.1 g/m2). Correlation analysis show that community biomass was correlated positively with the richness index (P < 0.01), and biodiversity index was correlated positively with aboveground biomass and the richness index (P <0.01). [ Conclusion] The Kobresia humilis community I has reasonable structure and large coverage of ground vegetation,which play an important role in maintenance of biodiversity and ecosystem function.关键词
矮嵩草草甸/群落结构/物种多样性Key words
Kobresia humilis meadow/ Community structure/ Species diversity分类
农业科技引用本文复制引用
史惠兰..青海海北不同退化程度矮嵩草植物群落特征研究[J].安徽农业科学,2011,39(20):12250-12252,3.基金项目
青海大学"中青年科研基金"项目(2009-QN-16) （2009-QN-16）
国家十一五科技支撑项目(2008BAC39B04). （2008BAC39B04）
