IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Alternative TitleVariation in community characteristics and its influencing factors of alpine grasslands along an elevation gradient
崔海军; 王根绪; 杨燕; 杨阳
Corresponding Author王根绪
Source Publication生态学杂志
Other Abstract



To explore the evolvement pattern of grasslands in humid Tibetan Plateau region and its responses to on-going climate change,we selected the alpine grasslands with different altitudes along the sunny slope of Yajiageng mountain in the eastern Tibetan Plateau,and studied the variation in small-scale characteristics of grassland communities along the elevation gradient,and analyzed the effects of climate and soil variables on community characteristics. Our results showed that aboveground biomass decreased significantly with the altitude increasing,while the underground biomass and the root-shoot ratios of community increased significantly. Community diversity indexes showed significant change between lower altitude sites,but did not change significantly between higher altitude sites. Overall community diversity and evenness increased with the altitude increasing. The variation in community characteristics of different altitudes was mainly controlled by climatic factors,and the temperature played a leading role. The interpretation of the variance from soil factors could be ignored. Community diversity indexes showed negative correlations with aboveground biomass along the elevation gradient,which supports root competition hypothesis and light competition hypothesis.

Keyword高山草地 高山带谱 多样性指数 生物量 功能群 环境因子
Subject AreaQ948.1
Indexed ByCSCD ; 北大中文核心
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
崔海军,王根绪,杨燕,等. 高山草地植物群落数量特征沿海拔梯度变化及其影响因素[J]. 生态学杂志,2015,34(11):3016-3023.
APA 崔海军,王根绪,杨燕,&杨阳.(2015).高山草地植物群落数量特征沿海拔梯度变化及其影响因素.生态学杂志,34(11),3016-3023.
MLA 崔海军,et al."高山草地植物群落数量特征沿海拔梯度变化及其影响因素".生态学杂志 34.11(2015):3016-3023.
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