| 温室内草皮蒸腾量预测的试验研究 |
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| 引用本文： | 李雪,毛罕平,左志宇,张晓东,付为国.温室内草皮蒸腾量预测的试验研究[J].农机化研究,2008(12). |
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| 作者姓名： | 李雪 毛罕平 左志宇 张晓东 付为国 |
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| 作者单位： | 江苏大学,江苏省现代农业装备与技术重点实验室,江苏,镇江,212013 |
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| 摘 要： | 研究了温室内草皮蒸腾量和小气候的关系，用彭蔓公式计算参考作物腾发量，用20cm蒸发皿测定温室内的水面蒸发力，并和测定的草皮蒸腾量进行对比。试验结果表明，草皮蒸腾量与温室小气候的回归系数（R^2）为0．938，明显高于蒸腾量与蒸发皿水面蒸发量的回归系数（R^2）0．8683和蒸发量与彭蔓公式计算的参考作物腾发量的回归系数0．7944，以温室小气候计算温室内的作物蒸腾量要优于以参考作物腾发量计算作物蒸腾量和蒸发皿水面蒸发量的方法。温室内草皮的蒸腾量与温室小气候线性相关，可以此计算温室内作物的蒸腾量。
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| 关 键 词： | 温室 作物蒸腾堵 预报 蒸发皿水面蒸发量 参考作物腾发量 |
Estimation of Evapotranspiration of Grass in a Greenhouse |
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| Li Xue,Mao Hanping,Zuo Zhiyu,Zhang Xiaodong,Fu Weiguo.Estimation of Evapotranspiration of Grass in a Greenhouse[J].Journal of Agricultural Mechanization Research,2008(12). |
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| Authors: | Li Xue Mao Hanping Zuo Zhiyu Zhang Xiaodong Fu Weiguo |
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| Abstract: | An experiment was conducted in a greenhouse to study the relationship between evapotranspiration of grass(ET)and climatic factors.Reference evaportranspiration(ET0)inside the greenhouse was calculated P-M methods.Water evaporation(E)inside the greenhouse was also measured using a 20 cmdiameter pan.Results showed that,the determination coefficient(R2)of 0.938 between ET and climatic factors was higher than the other two methods,which ranged from 0.47 to 0.60.E was linearlyrelated to Etand recommended to estimated crop ET inside a greenhouse. |
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| Keywords: | greenhouse crop evapotranspiration estimation pan evaporation reference evapotranspiration |
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