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Position: Home > Articles > Comparison of Daily-based ET_0 Calculation Models for Arid Zone Water Saving Irrigation 2014 (4) 19-21+26

基于日尺度的干旱区ET_0计算模型对比分析

作者：

魏光辉;马亮

单位：

新疆农业大学水利与土木工程学院

关键词：

Hargreaves模型;PM模型;干旱区;ET0;塔里木盆地北缘

摘要：

该文利用PM模型和Hargreaves模型,对新疆塔里木盆地北缘ET0日值进行了计算,以PM模型计算值为标准值,对Hargreaves模型计算值进行对比分析。结果表明:Hargreaves模型计算值偏大,两种模型ET0日值计算结果存在显著差异;此外,建立了不同时段两种模型计算值的回归方程,修正后的Hargreaves模型能很好地在研究区应用,这为Hargreaves模型在其他类似干旱区的应用提供了重要参考。

译名：

Comparison of Daily-based ET_0 Calculation Models for Arid Zone

作者：

WEI Guang-hui;MA Liang;School of Water Resources & Civil Engineering,Xinjiang Agricultural University;

关键词：

Hargreaves model;;Penman-Monteith model;;arid zone;;ET0;;north of Tarim Basin

摘要：

In this paper,the reference crop evapotranspiration was calculated by Hargreaves model and Penman-monteith model in north of Tarim Basin of Xinjiang,China.The results of Hargreaves model were analyzed by using the results of Penman-monteith model as standard.The results showed that the ET0values calculated by Hargreaves model were greater than that calculated by Penman-Monteith model and significant difference existed between the results of the two models.Moreover,the regression relation for the results in different periods of the two models was established.The modified Hargreaves model could be applied in study area. This provided important reference for the application of Hargreaves model in the similar arid zone.

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基于日尺度的干旱区ET_0计算模型对比分析

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