| Hargreaves模型在黄土高原地区的应用与改进 |
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| 引用本文： | 王幼奇,白一茹,展秀丽.Hargreaves模型在黄土高原地区的应用与改进[J].灌溉排水学报,2013,32(1):36-38. |
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| 作者姓名： | 王幼奇 白一茹 展秀丽 |
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| 作者单位： | 宁夏大学资源环境学院,银川,750021 |
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| 基金项目： | 国家自然科学基金项目(41201087);宁夏大学自然科学基金项目(ZR1155) |
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| 摘 要： | 利用黄土高原地区55个气象站30年的气象资料,以Penman-Monteith(PM)公式作为计算ET0的标准,探讨了Hargreaves公式在黄土高原地区的适用性,并对Hargreaves公式进行了修正。结果表明,Hargreaves公式不宜直接应用于黄土高原地区,但修正后的Hargreaves公式计算的3d或更长时间尺度的ET0与PM公式计算的结果吻合度较高。可见,修正后的Hargreaves公式在黄土高原地区具有可行性。
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| 关 键 词： | Hargreaves公式 Penman-Monteith公式 参考作物蒸散量 黄土高原 |
Application and Modification of Hargreaves Models on the Loess Plateau |
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| WANG You-qi,BAI Yi-ru,ZHAN Xiu-li.Application and Modification of Hargreaves Models on the Loess Plateau[J].Journal of Irrigation and Drainage,2013,32(1):36-38. |
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| Authors: | WANG You-qi BAI Yi-ru ZHAN Xiu-li |
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| Institution: | (College of Resources and Environment,Ningxia University,Yinchuan 750021,China) |
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| Abstract: | According to meteorological data of 55 climatic stations on the Loess Plateau from 1971 to 2000,the ET0 calculated with Penman-Monteith(PM) equation,was compared to the Hargreaves formula.The objective of the research was to investigate and establish the Hargreaves formula adequate for the Loess Plateau.The results showed that Hargreaves formula should not be applied directly on the Loess Plateau.There was a satisfactory correlation between ET0 of three or more days using modified Hargreaves formula and PM formula.Modified Hargreaves formula could be used for calculating ET0 on the Loess Plateau. |
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| Keywords: | Hargreaves formula Penman Monteith formula loess plateau reference crop evapotranspiration |
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