Interpreting the groundwater attributes influencing the distribution patterns of groundwater-dependent vegetation in northwestern China
文献类型：SCI/SSCI论文
| 作者 | Yu Q.; Wang P. |
| 发表日期 | 2012 |
| 关键词 | distribution pattern groundwater-dependent vegetation groundwater attributes quantitative classification the extremely arid region heihe river-basin plant-communities lower reaches functional methodology water conveyance ejina basin tarim river classification ordination mountains |
| 英文摘要 | Groundwater-dependent vegetation (GDV) must have access to groundwater to maintain their growth and function. GDV distribution patterns are an important issue in arid vegetation ecology. Using groundwater attributes to explore the distribution patterns of GDV have been very limited. In this article, we selected the Ejina Desert Oasis as an area to investigate GDV and groundwater attributes. Twenty plant species and 31 plant plots of data were collected. Two-way indicator species analysis (TWINSPAN) was performed to determine GDV types. Detrended correspondence analysis (DCA) and detrended canonical correspondence analysis (DCCA) were performed to analyse the relationships between GDV and groundwater attributes. The results indicated that (1) six plant community types were classified by TWINSPAN; (2) DCA ordination analyses showed that the groundwater depth (Dep) was the main factor restricting the distribution patterns of GDV, and the distribution of the dominant species and corresponding vegetation types had strong similarities; (3) in the DCCA diagram, the first axis represented variations of Dep, while the second axis was related to the pH values; (4) with increased Dep, the community types made the transition from I to VI; and (5) the DCCA diagram was similar to the DCA. However, the distribution patterns of GDV were more compact in the DCCA, while the DCA showed that each association group appeared within a limited range and had a clear border against other communities. This study shows that ordination methods can be used to explain the relationships between the distribution patterns of GDV and groundwater attributes. Copyright (C) 2011 John Wiley & Sons, Ltd. |
| 出处 | Ecohydrology |
| 卷 | 5 |
| 期 | 5 |
| 页 | 628-636 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1936-0584 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30669]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Yu Q.,Wang P.. Interpreting the groundwater attributes influencing the distribution patterns of groundwater-dependent vegetation in northwestern China. 2012. |
入库方式： OAI收割
来源：地理科学与资源研究所
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