Regulation of the water status in three co-occurring phreatophytes at the southern fringe of the Taklamakan Desert
文献类型：期刊论文
| 作者 | Thomas ; Frank M. ; Foetzki ; Andrea ; Gries ; Dirk ; Bruelheide ; Helge ; Li ; Xiangyi ; Zeng ; Fanjiang ; Zhang ; Ximing |
| 刊名 | JOURNAL OF PLANT ECOLOGY-UK
 |
| 出版日期 | 2008 |
| 卷号 | 1期号:4页码:227-235 |
| 关键词 | CENTRAL-ASIAN DESERT STOMATAL CONDUCTANCE HYPERARID DESERT SONORAN DESERT SUSTAINABLE MANAGEMENT TAMARIX-RAMOSISSIMA ALHAGI-SPARSIFOLIA PERENNIAL PLANTS TRANSITION ZONE RIVER OASIS |
| ISSN号 | 1752-9921 |
| 通讯作者 | Thomas, FM, Univ Trier, Dept Geobot, Behringstr 21, D-54296 Trier, Germany |
| 中文摘要 | Aims We investigated the regulation of the water status in three predominant perennial C3 phreatophytes (Alhagi sparsifolia, Populus euphratica, Tamarix ramosissima) at typical sites of their occurrence at the Southern fringe of the hyperarid Taklamakan Desert (north-west China). Methods In the foreland of the river oasis of Qira (Cele), we determined meteorological variables, plant biomass production, plant water potentials (psi(l)) and the water flux through the plants. We calculated the hydraulic conductance on the flow path from the soil to the leaves (k(SL)) and tested the effects of k(SL) psi(L) and the leaf-to-air difference in the partial pressure of water vapour (Delta w) on stomatal regulation using regression analyses. Important Findings Despite high values of plant water potential at the point of turgor loss, all plants sustained psi(L) at levels that were high enough to Maintain transpiration throughout the growing season. In A. sparsitolia, stomatal resistance (r(s); related to leaf area or leaf mass) was most closely correlated with k(SL);. whereas in P. euphratica, similar to 70%, of the variation in r(s) was explained by Delta w. In T. ramosissima, leaf area-related r(s) was significantly correlated with psi(L) and k(SL). The regulation mechanisms are in accordance with the growth patterns and the Occurrence of the species in relation to their distance to the ground water. |
| 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/365004/10178]  |
| 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 | Thomas,Frank M.,Foetzki,et al. Regulation of the water status in three co-occurring phreatophytes at the southern fringe of the Taklamakan Desert[J]. JOURNAL OF PLANT ECOLOGY-UK,2008,1(4):227-235. |
| APA | Thomas.,Frank M..,Foetzki.,Andrea.,Gries.,...&Ximing.(2008).Regulation of the water status in three co-occurring phreatophytes at the southern fringe of the Taklamakan Desert.JOURNAL OF PLANT ECOLOGY-UK,1(4),227-235. |
| MLA | Thomas,et al."Regulation of the water status in three co-occurring phreatophytes at the southern fringe of the Taklamakan Desert".JOURNAL OF PLANT ECOLOGY-UK 1.4(2008):227-235. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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