| 环境因素对紫花苜蓿叶水势与蒸腾速率影响的初步研究 |
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| 引用本文： | 佟长福,郭克贞,史海滨,李和平,杨燕山,徐冰,薛铸. 环境因素对紫花苜蓿叶水势与蒸腾速率影响的初步研究[J]. 农业工程学报, 2005, 21(12): 152-155 |
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| 作者姓名： | 佟长福 郭克贞 史海滨 李和平 杨燕山 徐冰 薛铸 |
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| 作者单位： | 内蒙古农业大学水利与土木建筑工程学院,010018;水利部牧区水利科学研究所,呼和浩特,010010;内蒙古农业大学水利与土木建筑工程学院,010018;水利部牧区水利科学研究所,呼和浩特,010010 |
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| 摘 要： | 植物叶水势及其蒸腾速率除取决于本身的生物学特性外,还受外界环境因子所制约.该文根据有关田间试验资料全面分析了叶水势、蒸腾速率在不同灌溉水平下的日变化规律,并探讨了其与土壤含水率和气象因素(气温、净辐射和饱和差)之间的关系,建立了叶水势和蒸腾速率与气象因素间的定量关系式,对紫花苜蓿的合理灌溉具有指导意义.
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| 关 键 词： | 土壤含水率 环境因子 叶水势 蒸腾速率 |
| 文章编号： | 1002-6819(2005)12-0152-04 |
| 收稿时间： | 2004-12-13 |
| 修稿时间： | 2005-06-13 |
Preliminary study on the effect of environmental factor on leaf potential and transpiration rate of alfalfa |
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| Tong Changfu,Guo Kezhen,Shi Haibin,Li Heping,Yang Yanshan,Xu Bing and Xue Zhu. Preliminary study on the effect of environmental factor on leaf potential and transpiration rate of alfalfa[J]. Transactions of the Chinese Society of Agricultural Engineering, 2005, 21(12): 152-155 |
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| Authors: | Tong Changfu Guo Kezhen Shi Haibin Li Heping Yang Yanshan Xu Bing Xue Zhu |
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| Affiliation: | 1. College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China ; 2. Institute of Water Resources for Pastoral Areas, Ministry of Water Resources, Huhhot 010010, China |
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| Abstract: | Generally, the changes of the leaf potential and the transpiration almost depend on the characteristics of biology, and also are constrained by environmenal factors. Thereby, according to the data of the field tests, the daily variation law of leaf potential and the transpiration was analyzed under the different levels of irrigation. The relationships among leaf potential, transpiration rate and soil water content, meteorology factors(including temperature, net radiation, saturation deficiency) were analyzed. And the quantity formula of leaf potential, the transpiration and environmental factors was established. The study has reference significance for instructing reasonable irrigation of alfalfa. |
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| Keywords: | soil water content environmental factors leaf potential transpiration rate |
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