Shrub Communities and Environmental Variables Responsible for Species Distribution Patterns in an Alpine Zone of the Qilian Mountains, Northwest China
文献类型：期刊论文
| 作者 | HUO Hong ; FENG Qi ; SU Yong-hong |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2015-01 |
| 卷号 | 12期号:1页码:166-176 |
| 关键词 | Alpine shrublands Floristic composition Cluster analysis Canonical Correspondence Analysis (CCA) Variation partitioning Species composition Species richness |
| 通讯作者 | HUO Hong |
| 英文摘要 | Understanding the factors that drive variation in species distribution is a central theme of ecological research. Although several studies focused on alpine vegetation, few efforts have been made to identify the environmental factors that are responsible for the variations in species composition and richness of alpine shrublands using numerical methods. In the present study, we investigated vegetation and associated environmental variables from 45 sample plots in the middle Qilian Mountains of the northwestern China to classify different community types and to elucidate the species-environment relationships. We also estimated the relative contributions of topography and site conditions to spatial distribution patterns of the shrub communities using the variation partitioning. The results showed that four shrub community types were identified and striking differences in floristic composition were found among them. Species composition greatly depended on elevation, slope, shrub cover, soil pH and organic carbon. The important determinants of species richness were soil bulk density and slope. No significant differences in species richness were detected among the community types. Topography and site conditions had almost equal effects on compositional variation. Nonetheless, a large amount of the variation in species composition remained unexplained. |
| 收录类别 | SCI |
| 公开日期 | 2015-01-16 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/7700]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2015_Vol12 No.1 |
| 推荐引用方式 GB/T 7714 | HUO Hong,FENG Qi,SU Yong-hong. Shrub Communities and Environmental Variables Responsible for Species Distribution Patterns in an Alpine Zone of the Qilian Mountains, Northwest China[J]. Journal of Mountain Science,2015,12(1):166-176. |
| APA | HUO Hong,FENG Qi,&SU Yong-hong.(2015).Shrub Communities and Environmental Variables Responsible for Species Distribution Patterns in an Alpine Zone of the Qilian Mountains, Northwest China.Journal of Mountain Science,12(1),166-176. |
| MLA | HUO Hong,et al."Shrub Communities and Environmental Variables Responsible for Species Distribution Patterns in an Alpine Zone of the Qilian Mountains, Northwest China".Journal of Mountain Science 12.1(2015):166-176. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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