| 双作物系数模型SIMDual_Kc的验证及应用 |
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| 引用本文： | 赵娜娜,刘 钰,蔡甲冰,L. S. Pereira.双作物系数模型SIMDual_Kc的验证及应用[J].农业工程学报,2011,27(2):89-95. |
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| 作者姓名： | 赵娜娜 刘 钰 蔡甲冰 L. S. Pereira |
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| 作者单位： | 1. 中国水利水电科学研究院，北京 100048;1. 中国水利水电科学研究院，北京 100048;1. 中国水利水电科学研究院，北京 100048;2. 葡萄牙里斯本技术大学高等农学院，里斯本，1349-017 |
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| 基金项目： | 国家“973”计划课题（2006CB403405）；国家“863”计划课题（2006AA100208-4）。 |
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| 摘 要： | 为了将棵间蒸发与叶面蒸腾有效地分开，该文利用3 a冬小麦的田间实测数据（土壤含水率和实际腾发量），率定和验证双作物系数模型SIMDual_Kc 在华北地区的适用性，并计算各生育阶段以及整个生育期冬小麦棵间蒸发量占作物腾发量比例。结果表明，模型模拟土壤含水率及实际腾发量的效果均比较好，拟合度较高。模型所模拟的棵间蒸发变化过程趋势明显，与作物生长阶段密切相关，整个生育期棵间蒸发量占作物腾发量比例在17%～22%左右变化，此模型在华北地区具有一定的适用性。
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| 关 键 词： | 模型，蒸发，蒸腾，作物腾发量，作物系数 |
| 收稿时间： | 3/3/2010 12:00:00 AM |
| 修稿时间： | 2010/12/3 0:00:00 |
Validation and application of dual crop coefficient model SIMDual_Kc |
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| Zhao Nan,Liu Yu,Cai Jiabing and L. S. Pereira.Validation and application of dual crop coefficient model SIMDual_Kc[J].Transactions of the Chinese Society of Agricultural Engineering,2011,27(2):89-95. |
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| Authors: | Zhao Nan Liu Yu Cai Jiabing and L S Pereira |
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| Institution: | Zhao Nana1,Liu Yu1,Cai Jiabing1,L.S.Pereira2(1.China Institute of Water Resources and Hydropower Research,Beijing 100048,China,2.Institute of Agriculture,Technical University of Lisbon,Lisbon 1349-017) |
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| Abstract: | In order to distinguish evaporation and crop transpiration, the dual crop coefficient model, SIMDual Kc, was calibrated and verified based on 3-year data measured from an experimental field of winter-wheat in the North China Plain. Result show that simulated values of evapotranspiration and soil water content fit well with their respective observed data. Simulated evaporation show clear periodic variation, closely related to different phase of crop growth. The ratio of evaporation to the actual crop evapotranspiration in the whole growth is 17%-22%. Consequently, this model is suitable to be used in North China Plain. |
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| Keywords: | models evaporation transpiration crop coefficient crop evapotranspiration |
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