Rooting depth and leaf hydraulic conductance in the xeric tree Haloxyolon ammodendron growing at sites of contrasting soil texture
文献类型：期刊论文
| 作者 | Xu ; G. -Q. ; Li ; Y. |
| 刊名 | FUNCTIONAL PLANT BIOLOGY
 |
| 出版日期 | 2008 |
| 卷号 | 35期号:12页码:1234-1242 |
| 关键词 | ASIAN DESERT SHRUBS WATER-USE PHENOTYPIC PLASTICITY STOMATAL CONDUCTANCE PRECIPITATION PULSE SEMIARID GRASSLAND SHORTGRASS STEPPE SEASONAL-CHANGES FAGUS-SYLVATICA PLANT-RESPONSES |
| ISSN号 | 1445-4408 |
| 通讯作者 | Li, Y, Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Fukang Stn Desert Ecol, 40-3 S Beijing Rd, Xinjiang 830011, Peoples R China |
| 中文摘要 | An experiment was conducted on Haloxylon ammodendron C.A. Mey, a small xeric tree. Soil water content, soil evaporation, leaf water potential, leaf transpiration rate and stomatal conductance were measured at the two sites that contrast in soil texture: sandy and heavy textured, 8 km apart on the southern periphery of Gurbantonggut Desert, Central Asia, during the 2005 and 2006 growing seasons. Leaf specific hydraulic conductance was calculated from the measurements, and root distributions of plants grown at the two sites were quantified by whole-root system excavation. In general, plants grown in sandy soil experienced better water status than in heavy textured soil. Low soil evaporation loss is not the main reason for this better plant water status at sandy site. Plants in sandy soil developed much deeper root systems, larger root surface areas and higher root: leaf surface area ratio than in heavy textured soil, which facilitated plants acquiring more water and surviving the prolonged drought period. Plants growing at light textured sites should have an advantage in acclimatising to the changed water conditions of the future. Plants at the more sandy sites have a larger buffering capacity to excessive variation in ambient conditions. |
| 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/365004/10212]  |
| 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 | Xu,G. -Q.,Li,et al. Rooting depth and leaf hydraulic conductance in the xeric tree Haloxyolon ammodendron growing at sites of contrasting soil texture[J]. FUNCTIONAL PLANT BIOLOGY,2008,35(12):1234-1242. |
| APA | Xu,G. -Q.,Li,&Y..(2008).Rooting depth and leaf hydraulic conductance in the xeric tree Haloxyolon ammodendron growing at sites of contrasting soil texture.FUNCTIONAL PLANT BIOLOGY,35(12),1234-1242. |
| MLA | Xu,et al."Rooting depth and leaf hydraulic conductance in the xeric tree Haloxyolon ammodendron growing at sites of contrasting soil texture".FUNCTIONAL PLANT BIOLOGY 35.12(2008):1234-1242. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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