| 作物系数小时尺度和日尺度关系研究 |
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| 引用本文： | 黄垚,王景雷,刘浩,陈智芳,宋妮,陶国通.作物系数小时尺度和日尺度关系研究[J].灌溉排水学报,2013(3):63-66. |
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| 作者姓名： | 黄垚 王景雷 刘浩 陈智芳 宋妮 陶国通 |
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| 作者单位： | 中国农业科学院农田灌溉研究所;中国农业科学院研究生院;农业部作物需水与调控重点开放实验室 |
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| 基金项目： | 国家自然科学基金项目(51079154);国家高技术研究发展计划项目(2011AA100509,2011AA100502) |
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| 摘 要： | 利用Penman-Monteith公式估算参考作物蒸散,研究了日尺度参考作物蒸散(ET0d)和日内小时尺度参考作物蒸散之和(ET0dh)的关系。结果表明,ET0d和ET0dh以及实际日尺度和日内小时尺度作物系数均显著线性相关;基于Penman-Monteith公式的日尺度和小时尺度参考作物蒸散估算方法可用于作物系数的作物蒸散时间尺度转换。
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| 关 键 词： | 作物系数 时间尺度 参考作物蒸散 |
Research on the Relationship between the Hourly and Daily Crop Coefficient |
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| HUANG Yao,WANG Jing-lei,LIU Hao,CHEN Zhi-fang,SONG Ni,TAO Guo-tong.Research on the Relationship between the Hourly and Daily Crop Coefficient[J].Journal of Irrigation and Drainage,2013(3):63-66. |
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| Authors: | HUANG Yao WANG Jing-lei LIU Hao CHEN Zhi-fang SONG Ni TAO Guo-tong |
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| Institution: | 1,3(1.Farmland Irrigation Research Institute,Chinese Academy of Agricultural Sciences,Xinxiang 453002,China;2.Key Laboratory for Crop Water Requirement and Regulation,Ministry of Agriculture,Xinxiang 453002,China;3.Graduate School of Chinese Academy of Agricultural Sciences,Beijing 100081,China) |
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| Abstract: | Using the method of estimating reference evapotranspiration by Penman-Monteith formula,the relationship between the daily reference evapotranspiration(ET0d) and the sum of 24 hourly reference evapotranspirations within a day(ET0dh)was researched.The results showed that there existed significant linear relationships between ET0d and ET0 dhas well as kcdand kch.The method of estimating reference evapotranspiration by Penman-Monteith formula could be used for the change of evapotranspiration time scales for crop coefficient. |
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| Keywords: | crop coefficient temporal scale reference evapotranspiration |
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