Hydraulic resistance partitioning between shoot and root system and plant water status of haloxyolon ammodendron growing at sites of contrasting soil texture
文献类型：期刊论文
| 作者 | Xu, GuiQing1,2; Li, Yan1,2; Zou, Ting1,2,3 |
| 刊名 | Journal of arid land
 |
| 出版日期 | 2010-06-01 |
| 卷号 | 2期号:2页码:98-106 |
| 关键词 | Hydraulic architecture Leaf water potential Transpiration Hydraulic resistance Stomatal conductance Hydraulic limitation |
| ISSN号 | 1674-6767 |
| DOI | 10.3724/sp.j.1227.2010.00098 |
| 通讯作者 | Li, yan(liyan@ms.xjb.ac.cn) |
| 英文摘要 | Hydraulic resistance components and water relations were studied on haloxyolon ammodendron, a small xeric tree, growing at sites significantly differed in soil texture. soil water content, leaf water potential (psi(1)), xylem water potential (psi(x)), root water potential (psi(root)), leaf transpiration rate (tr) and stomatal conductance (g(s)) were measured at the two sites during the growing season of 2005 and 2006. leaf specific hydraulic resistance (r-plant) during the whole growing season, hydraulic resistance of plants (r-p), shoots (r-shoot) and roots (r-root) in the august of both years were calculated and expressed on leaf area basis. the results showed the proportion of the hydraulic resistance of the aerial part (r-shoot) to the r-p was the same to the proportion of the hydraulic resistance of the soil part (r-root) to the r-p, indicating that both parts were equivalent important to plant water hydraulic system from soil to leaf. positive significant correlations were found between r-p and r-root, suggesting that root hydraulics resistance was a major determinant of plant hydraulic resistance (r-p) and transpiration rate. the integrated effect of stomatal control, hydraulic regulation and morphology adjustment enabled plants at heavy soil site surviving the extreme water deficit period. |
| WOS关键词 | DROUGHT RESISTANCE ; GAS-EXCHANGE ; PINUS-TAEDA ; ARCHITECTURE ; CONDUCTANCE ; TREES ; SEEDLINGS ; TRANSPORT ; NUTRIENT ; STRESS |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000293495700003 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2406060 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Yan |
| 作者单位 | 1.Chinese Acad Sci, Fukang Stn Desert Ecol, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Key Lab Oasis Ecol & Desert Environm, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, GuiQing,Li, Yan,Zou, Ting. Hydraulic resistance partitioning between shoot and root system and plant water status of haloxyolon ammodendron growing at sites of contrasting soil texture[J]. Journal of arid land,2010,2(2):98-106. |
| APA | Xu, GuiQing,Li, Yan,&Zou, Ting.(2010).Hydraulic resistance partitioning between shoot and root system and plant water status of haloxyolon ammodendron growing at sites of contrasting soil texture.Journal of arid land,2(2),98-106. |
| MLA | Xu, GuiQing,et al."Hydraulic resistance partitioning between shoot and root system and plant water status of haloxyolon ammodendron growing at sites of contrasting soil texture".Journal of arid land 2.2(2010):98-106. |
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来源：中国科学院大学
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