| 基于Penman-Monteith方程的温室番茄蒸腾量估算模型 |
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| 引用本文： | 刘浩,段爱旺,孙景生,刘祖贵.基于Penman-Monteith方程的温室番茄蒸腾量估算模型[J].农业工程学报,2011,27(9). |
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| 作者姓名： | 刘浩 段爱旺 孙景生 刘祖贵 |
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| 作者单位： | 中国农业科学院农田灌溉研究所,中国农业科学院农田灌溉研究所,中国农业科学院农田灌溉研究所,中国农业科学院农田灌溉研究所 |
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| 基金项目： | 国家自然科学基金资助项目（50779071） |
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| 摘 要： | 作物的蒸腾是作物生命过程中十分重要的组成部分。为寻求适合于温室栽培条件下番茄植株蒸腾量的计算模型，本文以Penman-Monteith方程为基础，针对温室特定的小气候环境，对番茄冠层整体气孔阻力、空气动力学阻力等参数进行合理修正，建立了包含气象数据、番茄叶面积指数和冠层高度为主要参数的温室番茄蒸腾量估算模型。分别采用2009年5月2-13日（开花坐果期）和2009年6月9-20日（成熟采摘期）2个时段内的实测蒸腾量对模型模拟结果进行验证，2个时段内模型模拟结果的平均相对误差分别为8.48%和9.20%，表明所建模型可以较好地的计算温室番茄的蒸腾量。本研究提出的蒸腾量估算模型对温室番茄作物水分关系的深入研究具有重要参考价值。
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| 关 键 词： | 温室，番茄，Penman-Monteith方程，蒸腾速率 |
| 修稿时间： | 4/12/2011 9:45:30 AM |
Estimating model of tomato transpiration based on Penman-Monteith equation in greenhouse |
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| Liuhao,Duanaiwang,Sunjingsheng and Liuzugui.Estimating model of tomato transpiration based on Penman-Monteith equation in greenhouse[J].Transactions of the Chinese Society of Agricultural Engineering,2011,27(9). |
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| Authors: | Liuhao Duanaiwang Sunjingsheng and Liuzugui |
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| Abstract: | It is a very important part for crop transpiration in the process of crop growth. For seeking suitable transpiration estimating model of tomato grown in greenhouse, based on Penman-Monteith equation the parameters such as canopy stomatal resistance of tomato and aerodynamic resistance were modified in connection with a microclimate environment in greenhouse, and the estimation model of transpiration for greenhouse grown tomato was established by considering the meteorological data, leaf area index and canopy height as main parameters. The model was verified by measurement values of sap flow rate from May 2 to 13 in 2009 (at the flowering and fruit development stage) and from June 9 to 20 in 2009 (at the fruit maturation stage), respectively. The result showed that average relative error for the model simulation was 8.48% and 9.20% at two stages, respectively. Therefore, plant transpiration can be estimated using the model. The transpiration model established in this study has important reference value to further research on tomato-water relationship in greenhouse. |
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| Keywords: | greenhouse tomato Penman-Monteith equation transpiration rate |
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