| 塔克拉玛干沙漠南缘柽柳和胡杨水势季节变化研究 |
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| 引用本文： | 曾凡江,张希明,李向义,Andrea Foetzki,Michael Runge.塔克拉玛干沙漠南缘柽柳和胡杨水势季节变化研究[J].应用生态学报,2005,16(8):1389-1393. |
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| 作者姓名： | 曾凡江 张希明 李向义 Andrea Foetzki Michael Runge |
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| 作者单位： | 1. 中国科学院新疆生态与地理研究所,乌鲁木齐,830011
2. 德国哥廷根大学生态与生态系统研究所,哥廷根,37073 |
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| 基金项目： | 中国-欧盟国家级科技合作项目(INCODC972774)，中国科学院知识创新工程重要方向项目(KZCX3-SW-342)，中国科学院“西部之光”资助项目 |
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| 摘 要： | 对塔克拉玛干沙漠南缘的柽柳和胡杨生长周期内的清晨水势和水势日变化的连续野外测定表明，两种植物在整个生长期内均未出现明显的水分亏缺.清晨水势的季节变化幅度不大，正午水势有不同程度的降低；一次性人工灌溉对植物水分状况没有明显影响.采伐利用方式不影响植物的水分状况.地下水是柽柳和胡杨生存与生长的先决条件.维持该区域地下水位的基本稳定是保证该区域柽柳和胡杨恢复重建的重要前提.
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| 关 键 词： | 塔克拉玛干沙漠 柽柳 胡杨 水势 |
| 文章编号： | 1001-9332(2005)08-1389-05 |
| 收稿时间： | 2004-10-28 |
| 修稿时间： | 2004年10月28 |
Seasonal variation of Tamarix ramosissima and Populus euphratica water potentials in southern fringe of Taklamakan Desert |
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| ZENG Fanjiang,Zhang Ximing,LI Xiangyi,Andrea Foetzki,Michael Runge.Seasonal variation of Tamarix ramosissima and Populus euphratica water potentials in southern fringe of Taklamakan Desert[J].Chinese Journal of Applied Ecology,2005,16(8):1389-1393. |
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| Authors: | ZENG Fanjiang Zhang Ximing LI Xiangyi Andrea Foetzki Michael Runge |
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| Institution: | Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumzqi 830011, China. fjzeng369@sohu.com |
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| Abstract: | The measurement of the seasonal and diurnal variations of Tamarix ramosissima and Populus euphratica water potentials in the southern fringe of Taklamakan Desert indicated that there was no apparent water stress for the two species during their growth period,with little change of predawn water potential and some extent decrease of midday water potential.Irrigation once or thinning had no significant effects on the water status of the plants,while groundwater appeared to be a prerequisite for the survival and growth of these species.It is very important to ensure a stable groundwater table for the restoration of Tamarix ramosissima and Populus euphratica in this area. |
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| Keywords: | Taklamakan Desert Tamarix ramosissima Populus euphratica Water potential |
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