| 浑善达克沙地参照作物腾发量简易计算方法初探 |
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| 引用本文： | 刘艳伟,戈振扬,朱仲元,贾德彬.浑善达克沙地参照作物腾发量简易计算方法初探[J].干旱区资源与环境,2013(10):127-132. |
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| 作者姓名： | 刘艳伟 戈振扬 朱仲元 贾德彬 |
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| 作者单位： | 昆明理工大学现代农业工程学院;内蒙古农业大学水利与土木建筑工程学院 |
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| 基金项目： | 云南省应用基础研究计划项目(KKSY201223076);国家自然科学基金项目(50769005)资助 |
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| 摘 要： | 为了寻找适合浑善达克沙地参照作物腾发量计算的简易方法,该文以实测的微气象数据为基础,分别采用FAO56 Penman-Monteith(1998)、Hargreaves-Samani(1985)、Irmark-Allen拟合以及Priestley-Tay-lor(1972)计算参照作物腾发量,并以普适性强、精度高的FAO56 Penman-Monteith为基准,对其他方法进行气象因子的非线性修正。结果表明:气象因子修正后的参照作物腾发量精度大大提高,为获得相对可靠的参照作物腾发量开辟了新的途径。FAO56 Penman-Monteith、Irmark-Allen拟合和Priestley-Taylor都需要用到净辐射,而专业测量净辐射的设备在农业气象站里很少安装,使三种方法推广使用受到一定限制。气象因子修正后Hargreaves-Samani需要的气象数据相对容易获得,且计算简单,具有较高的精度,建议在缺少气象资料的干旱地区推广采用。
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| 关 键 词： | 参照作物腾发量 估算 Penman-Monteith Hargreaves-Samani 浑善达克沙地 |
Primary research on estimating reference crop evapotranspiration in the Otindag sandy land with simple methods |
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| LIU Yanwei,GE Zhenyang,ZHU Zhongyan,JIA Debin.Primary research on estimating reference crop evapotranspiration in the Otindag sandy land with simple methods[J].Journal of Arid Land Resources and Environment,2013(10):127-132. |
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| Authors: | LIU Yanwei GE Zhenyang ZHU Zhongyan JIA Debin |
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| Institution: | 1.Faculty of Modern Agricultural Engineering,Kunming University of Science and Technology,Kunming 650500,P.R.China;2.The College of Hydraulics and Civil Engineering,Inner Mongolia Agricultural University,Hohhot 010018,P.R.China) |
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| 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. |
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| Keywords: | reference crop evapotranspiration estimation Penman-Monteith Hargreaves-Samani Otindag sandy land |
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