【摘要】 根据四湖工程管理局排灌实验站2001—2010年逐日气象资料,利用Penman-Monteith公式计算逐日参考作物腾发量,分析其变化特征和各气象因子对其的影响程度。结果表明,各气象因子对日参考作物腾发量的影响程度顺序为:日最高温度>日最低温度>日平均温度>饱和差>平均风速>日照时数。同时考虑日最高气温、日最低气温、日平均气温、饱和差、平均风速及日照时数6个气象因子,对日参考作物腾发量的模拟效果最好。更多还原

【Abstract】 Based on daily meteorological data from 2001 to 2010 of irrigation and drainage experimental station of the four lake engineering management bureau,Jingzhou Hubei,daily reference crop evapotranspiration was calculated by Penman-Monteith equation.Characteristics of reference crop evapotranspiration,correlations between the meteorological factors and the reference crop evapotranspiration were analyzed.The results showed the ordination of correlations was that: the maximum daily temperature,the minimum daily temperature,the mean daily temperature,the daily air saturation,the mean daily wind speed,the sunshine duration.Daily reference crop evapotranspiration was fitted better by the 6 factors.更多还原