Influence of floodwater irrigation on vegetation composition and vegetation regeneration in a Taklimakan desert oasis
文献类型：期刊论文
| 作者 | Guo HaiFeng ; Zeng FanJiang ; Arndt ; S. K. ; Zeng Jie ; Xing WenJuan ; Liu Bo |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2008 |
| 卷号 | 53期号:s2页码:156-163 |
| 关键词 | TAKLAMAKAN DESERT |
| ISSN号 | 1001-6538 |
| 通讯作者 | Zeng, FJ, Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China |
| 中文摘要 | Naturally occurring floods in the summer months are the main source of surface water application in the foreland of Qira oasis, which is characterized by a hyperarid climate and is located at the southern fringe of the Taklimakan Desert. We investigated the impact of repeated artificial flood irrigation on seedling recruitment and growth of Alhagi sparsifolia and Karelinia caspica plant communities which are part of the dominant vegetation in Qira oasis. Flood irrigation was applied three times during the growing season and we studied the effect of irrigation on species recruitment, vegetation growth, species composition, and changes in soil water and nutrient concentrations in the soil profile. Results show that (1) repeated flood irrigation had a positive effect on seedling recruitment of the two species, with vegetative recruitment via root tillers being more important than seed recruitment for both species. (2) Irrigation promoted the germination and establishment of herbaceous weed species, which increased species diversity as well as ground coverage. (3) Irrigation also increased soil water and soil nutrient concentrations in the upper soil layer and changed the soil nutrients in the vertical profile. Available N, P, K and the total P and K increased in the soil profile. Our study demonstrates that naturally occurring flood irrigation has significant ecological benefits and plays an important role in promoting the renewal of desert vegetation and a short-term increase of soil nutrients. Our study also highlights the potential negative consequences for vegetation composition and rejuvenation if naturally occurring floods in the study area are diminished by either the effects of climate change or human management. |
| 学科主题 | 植物生理学 |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/10142]  |
| 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 | Guo HaiFeng,Zeng FanJiang,Arndt,et al. Influence of floodwater irrigation on vegetation composition and vegetation regeneration in a Taklimakan desert oasis[J]. CHINESE SCIENCE BULLETIN,2008,53(s2):156-163. |
| APA | Guo HaiFeng.,Zeng FanJiang.,Arndt.,S. K..,Zeng Jie.,...&Liu Bo.(2008).Influence of floodwater irrigation on vegetation composition and vegetation regeneration in a Taklimakan desert oasis.CHINESE SCIENCE BULLETIN,53(s2),156-163. |
| MLA | Guo HaiFeng,et al."Influence of floodwater irrigation on vegetation composition and vegetation regeneration in a Taklimakan desert oasis".CHINESE SCIENCE BULLETIN 53.s2(2008):156-163. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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