| 赵永,蔡焕杰,王健,张振华2.Hargreaves计算参考作物蒸发蒸腾量公式经验系数的确定[J].干旱地区农业研究,2004,(4):44~47 |
| Hargreaves计算参考作物蒸发蒸腾量公式经验系数的确定 |
| Determination of the empirical coefficient of Hargreaves formula in computing crop evapo-transpiration |
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| DOI：10.7606/j.issn.1000-7601.2004.04.07 |
| 中文关键词: 参考蒸发蒸腾量 Penman-Monteith公式 经验系数 Hargreaves公式 |
| 英文关键词:reference evapo-transpiration Penman-Monteith Formula emppirical coefficient Hargreaves formula |
| 基金项目:国家重大科技专项(2002AA2Z4031)； 高等学校博士基金(20020712020)资助项目的部分内容 |
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| 中文摘要: |
| 介绍了联合国粮农组织(FAO)推荐的Hargreaves公式计算参考作物蒸发蒸腾量与Penman-Monteith公式计算值的转换系数,依据位于陕西省杨凌区的西北农林科技大学灌溉试验站19a的气象观测资料,分别用FAO推荐的Penman-Monteith公式和Hargreaves公式计算对应时段的参考作物蒸发蒸腾量,然后通过分析确定出Hargreaves公式的经验系数。经验证表明,得出的结果可靠,可应用于生产实际。 |
| 英文摘要: |
| The paper introduces the ratio to mutually transform between the reference evapo-transpirations by FAO-recommended Hargreaves formual and by Penman-Monteith Formula, then uses Hargreaves formula and Penman-Monteith Formula to calculate the crop evapo-transpirations during various growth periods with the 19-year meteorological data measured by the Experiment Station of Irrigation of the Northwest A&F University, and late on determines the empirical coefficient of Hargreaves formula through analysis. The experiences prove that the result is reliable and feasible for production practices. |
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