Degradation of Populus euphratica community in the lower reaches of the Tarim River, Xinjiang, China
文献类型：期刊论文
| 作者 | Liu ; Chen ; Chen ; Zhang ; Li ; JZ ; YN ; YJ ; N ; WH |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2005 |
| 卷号 | 17期号:5页码:740-747 |
| 关键词 | RIPARIAN ZONES NEW-ENGLAND VEGETATION PATTERNS LANDSCAPE PLANTS USA GERMINATION FLOODPLAIN DYNAMICS |
| ISSN号 | 1001-0742 |
| 通讯作者 | Chen, YN, Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China |
| 中文摘要 | To investigate the relationships between the degradation of plant community and groundwater level in the lower reaches of the Tarim River, nine monitored sections were set along the main stream, where there had been no runoff for nearly 30 years. The characteristics of plant communities were analyzed. It was found that the coverage of trees gradually decreased along the groundwater depth gradient, while the coverage of shrubs slightly increased rather than decreased at first and then gradually decreased, and the coverage of herbs steadily decreased at the beginning and then quickly decreased. The species diversity and species richness of both herbs and woody plants showed obvious degrading trends, while the variations in species evenness were slight. The degrading sequences of species were related to their physiological and ecological characteristics, especially their sensitivity to changes of groundwater table. The herbs with shallow roots first degenerated or disappeared when the groundwater table fell, and then did the deep-rooted herbs, and finally the trees and shrubs with strong tolerance to drought degenerated. The Populus euphratica communities showed typical degrading characteristics, namely the dominant species Populus euphratica remained its dominant status during the degradation. Overall, the existence of strongly tolerant-drought species was the obvious indication of plant species degradation; while simplification of community structure and the decrease of species richness were the obvious indication of plant community degradation. |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/10508]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Liu,Chen,Chen,et al. Degradation of Populus euphratica community in the lower reaches of the Tarim River, Xinjiang, China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2005,17(5):740-747. |
| APA | Liu.,Chen.,Chen.,Zhang.,Li.,...&WH.(2005).Degradation of Populus euphratica community in the lower reaches of the Tarim River, Xinjiang, China.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,17(5),740-747. |
| MLA | Liu,et al."Degradation of Populus euphratica community in the lower reaches of the Tarim River, Xinjiang, China".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 17.5(2005):740-747. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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