深圳地区参考作物蒸散量计算方法适用性分析  

The Analysis of Reference Crop Evapotranspiration Computation in Shenzhen

作　　者：郑汐[1] 王齐 孙吉雄[1] 

机构地区：[1]甘肃农业大学草业学院,甘肃兰州730070 [2]云南林业职业技术学院,云南昆明650224

出　　处：《亚热带植物科学》2010年第4期28-32,共5页Subtropical Plant Science

基　　金：深圳市中水灌溉绿地水质控制指标及安全性评价项目

摘　　要：根据深圳1998～2007日值气象资料,以4种方法计算参考作物蒸散量,并以FAO Penman-Monteith公式计算结果为标准,评价其他各公式在深圳的适用性。结果表明:Irmark-Allen公式的月平均参考作物蒸散量及年参考作物蒸散量与Penman-Monteith公式结果没有显著差异,与Hargreaves公式和Pristley-Taylor公式计算结果差异显著,Hargreaves最大,Pristley-Taylor最小;Irmark-Allen公式、Pristley-Taylor公式与Penman-Monteith公式的相关性较高,而Hargreaves相关性较低。Irmark-Allen法可作为深圳地区缺少相关气象资料条件下计算ET0较理想的替代方法。Based on meteorological data of Shenzhen from 1998 to 2007,the paper studied reference crop evapotranspiration by using Hargreaves method,Pristley-Taylor method and Irmark-Allen method with the FAO Penman-Monteith method as the standard,attempt to estimate applicability of the three methods.The results show that mean monthly reference crop evapotranspiration and annual mean reference crop evapotranspiration of Irmark-Allen and Penman-Monteith is no significant difference,but are deviated from Hargreaves method and Pristley-Taylor method which Hargreaves is the most volume and Pristley-Taylor is least.The correlation of Irmark-Allen method,Pristley-Taylor method and Penman-Monteith are overestimated.Irmark-Allen method is advisable to estimate ET0 when hard to get relatively meteorological data in Shenzhen.

关 键 词：参考作物蒸散量 计算方法 适用性 

分 类 号：Q943.1[生物学—植物学]