Title: Primary research on estimating reference crop evapotranspiration in the Otindag sandy land with simple methods
Abstract: In order to obtain the proper calculation methods for reference crop evapotranspiration(ET0) in the Otindag sandy land,FAO56 Penman-Monteith(1998),Hargreaves-Samani(1985),Irmark-Allen and Priestley-Taylor(1972) were used respectively to estimate the reference crop evapotranspiration based on the micrometeorological data,and other three common formulas were adjusted to compare with FAO56 Penman-Monteith,which universality is strong and has high precision.The results show that accuracy of adjusted reference crop evapotranspiration is greatly improved.Which Provides a new simple way for reference crop evapotranspiration calculated.Net radiation measuring devices,which requiring professional control has rarely been installed in agro meteorological stations,but the FAO56 Penman-Monteith,Irmark-Allen and Priestley-Taylor need the net radiation,so they have some restrictions on using.Meteorological data adjusted needed by hargreaves-Samani is relatively easy to obtain and calculate,and with high precision.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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