| 应用热平衡法对黄土高原玉米茎流变化规律的研究 |
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| 引用本文： | 胡雅杰,闫业庆,张旭昇,魏国孝.应用热平衡法对黄土高原玉米茎流变化规律的研究[J].安徽农业科学,2010,38(22):11893-11894,12258. |
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| 作者姓名： | 胡雅杰 闫业庆 张旭昇 魏国孝 |
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| 作者单位： | 1. 兰州大学资源环境学院,甘肃兰州,730000
2. 兰州大学西部环境与气候变化研究院,甘肃兰州,730000 |
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| 基金项目： | 青藏高原和中东亚干旱区环境变化与地表过程研究，国家自然科学基金创新群体项目 |
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| 摘 要： | 目的]探讨黄土高原玉米茎流变化规律及其与环境因子之间的关系。方法]利用热平衡茎流计实时监测会宁县玉米样株茎流日变化,数据处理采用Excel软件。结果]玉米茎流日变化过程显著,白天茎流速率大且波动较大,晚上茎流速率小而平稳;午间出现茎流的小幅减小,这与叶片气孔开度改变为维持植物体内水分平衡有关。通过相关分析得出,茎流速率与太阳辐射和温度呈正相关关系,其中与太阳辐射的关系更为密切。结论]为节水灌溉和玉米增产提供理论依据。
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| 关 键 词： | 玉米 热平衡法 黄土高原 茎流量 日变化规律 |
Research on Stem Flow Variation of Zea mays L. in Loess Plateau by Stem Heat Balance Method |
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| HU Ya-jie et al.Research on Stem Flow Variation of Zea mays L. in Loess Plateau by Stem Heat Balance Method[J].Journal of Anhui Agricultural Sciences,2010,38(22):11893-11894,12258. |
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| Authors: | HU Ya-jie |
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| Institution: | HU Ya-jie et al (College of Earth , Environmental Science Lanzhou University,Lanzhou,Gansu 730000) |
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| Abstract: | Objective] The aim was to study the relationship between the stem flow variation of Zea mays L.and environmental factors.Method]Heat balance flow neter was used to monitor the diurnal change of stem sap flow of Zea mays L.,and excel soft ware was used for data processing.Result]The results indicated that the diurnal variation of stem flow of Zea mays L.had a clear rhythm,the rate of stem flow was bigger,and the undulation were more in daytime,the rate of stem flow in the night was smaller and the undulat... |
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| Keywords: | Zea mays L Stem heat balance method Loess Plateau Stem flow Diurnal variation |
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