| 干旱区荒漠梭梭柽柳蒸腾耗水对比分析 |
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| 引用本文： | 梁凤超,张新平,张毓涛,安文明,师庆东.干旱区荒漠梭梭柽柳蒸腾耗水对比分析[J].新疆农业科学,2011,48(5):962-967. |
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| 作者姓名： | 梁凤超 张新平 张毓涛 安文明 师庆东 |
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| 作者单位： | 1. 新疆大学,绿洲生态教育部重点实验室,干旱生态环境研究所,乌鲁木齐830046
2. 新疆林业科学院森林生态研究所,乌鲁木齐,830000 |
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| 基金项目： | 国家基础研究重点发展规划项目，新疆维吾尔自治区自然科学基金 |
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| 摘 要： | 【目的】在克拉玛依造林碳汇基地外围,对比分析梭梭和柽柳蒸腾耗水的差异性。【方法】使用包裹式茎流计(Flow4)对梭梭(Haloxylon persicum)和柽柳(Tamarix elongata)枝液流动态进行了监测。对液流速率和枝直径进行相关性分析和回归分析。【结果】梭梭和柽柳枝液流速率同枝直径达到显著相关,可分别使用幂函数和指数函数进行拟合。在1.0~3.0 cm的枝直径范围内,柽柳的液流速率大于梭梭,液流速率均随枝直径的增大呈减小,液流速率的差异在减小。【结论】在1.0~3.0 cm的径级范围内梭梭抗旱能力强于柽柳,随着植株的生长梭梭和柽柳抗旱能力增强,柽柳抗旱能力同梭梭的差距逐渐变小。
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| 关 键 词： | 蒸腾耗水 梭梭 柽柳 对比分析 |
Contrastive Analysis on Transpiration Water Consumption between Haloxylon persicum and Tamarix elongate in Arid Regions |
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| LIANG Feng-chao,ZHANG Xin-ping,ZHANG Yu-tao,AN Wen-ming,SHI Qing-dong.Contrastive Analysis on Transpiration Water Consumption between Haloxylon persicum and Tamarix elongate in Arid Regions[J].Xinjiang Agricultural Sciences,2011,48(5):962-967. |
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| Authors: | LIANG Feng-chao ZHANG Xin-ping ZHANG Yu-tao AN Wen-ming SHI Qing-dong |
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| Institution: | LIANG Feng-chao1,ZHANG Xin-ping2,ZHANG Yu-tao2,AN Wen-ming1,SHI Qing-dong1(1.Key Laboratory of Oasis Ecology,the Institute of Arid eco-environment,Xinjiang University,Urumqi 830046,China,2.Xinjiang Academy of Forestry Sciences,Urumqi 830000,China) |
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| Abstract: | 【Objective】 The purpose of this program is make a contrastive analysis of the transpiration water consumption between Haloxylon persicum and Tamarix elongate in Arid Regions.【Method】Flow4 was used to measure the sap-flow dynamics in outer margin of Karamay Cabe forest during 10-30 of July,2010.The correlation and regression between sap flow velocity and diameter of branch were analyzed.【Result】We found that there was a significant correlation between sap flow velocity and diameter of the branch.The relation can expressed as power function and logarithmic function.The sap flow velocity of Tamarix elongate was greater than Haloxylon persicum's and the sap flow velocity and difference between them bacame smaller with the increase of branch's diameter.【Conclusion】Haloxylon persicum's drought resistance was stronger than Tamarix elongate when diameter of branch ranging from 1.0 to 3.0 cm.The drought resistance became stronger with the development of the plant and reducing the differences between Haloxylon persicum and Tamarix elongate. |
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| Keywords: | transpiration water Haloxylon persicum Tamarix elongata contrastive analysis |
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