| 我国北方多沙粗沙区常见树种水分利用效率的研究 |
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| 引用本文： | 高素华,郭建平,康玲玲,王云璋. 我国北方多沙粗沙区常见树种水分利用效率的研究[J]. 中国生态农业学报, 2006, 14(1): 90-92 |
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| 作者姓名： | 高素华 郭建平 康玲玲 王云璋 |
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| 作者单位： | 1. 中国气象科学研究院,北京,100081
2. 黄河水利科学研究院,郑州,450003 |
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| 基金项目： | 黄河水利委员会治黄专项基金 |
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| 摘 要： | 采用Li-6400光合作用系统测定北方多沙粗沙区不同光强条件下常见树种水分利用效率和蒸腾效率结果表明,6个树种水分利用效率依次为刺槐>山楂>杨树>柳树>榆树>核桃,2种灌木沙柳水分利用效率高于柠条,但其蒸腾速率却小于柠条,在半旱区水分竞争力强于柠条。
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| 关 键 词： | 水分利用效率 光合速率 蒸腾速率 |
| 收稿时间： | 2004-06-09 |
| 修稿时间： | 2004-07-26 |
Water use efficiency of common tree species in the excessive and thick sandland regions of Northern China |
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| GAO Su-Hu,GUO Jian-Ping,KANG Ling-Ling and WANG Yun-Zhang. Water use efficiency of common tree species in the excessive and thick sandland regions of Northern China[J]. Chinese Journal of Eco-Agriculture, 2006, 14(1): 90-92 |
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| Authors: | GAO Su-Hu GUO Jian-Ping KANG Ling-Ling WANG Yun-Zhang |
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| Affiliation: | 1.Chinese Academy of Meteorological Sciences, Beijing 100081 ,China;2.Yellow River Institute of Hydraulic Research, Zhengzhou 450003, China |
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| Abstract: | The water use efficiency and transpiration rate of common tree species under different radiations were measured by using Li-6400 potable photosynthetic system in the excessive and thick sandland regions of Northern China.The (results) show that the order of the water use efficiency of 6 tree species is acacia>haw>poplar>osier>elm>walnut,and also show that the water use efficiency of S.(psammophila)is greater than that of C.intermedia,but its transpiration(efficiency) is far less than that of C.intermedia and the drought-resistant ability of S.psammophila is stronger than that of C.intermedia. |
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| Keywords: | Water use efficiency Photosynthetic rate Transpiration rate |
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