汤鹏程,何蒙,苗澍,郭克贞,任杰,王海瑞.不同ET0计算方法在内蒙古东部地区适用性比较[J].干旱地区农业研究,2016,34(1):38~42
不同ET0计算方法在内蒙古东部地区适用性比较
Suitability comparison of different ET0 estimating methods in eastern part of Inner Mongolia
  
DOI：10.7606/j.issn.1000-7601.2016.01.06
中文关键词:  参考作物蒸发蒸腾量(ET0)  ET0计算方法  Irmark-Allen拟合法  内蒙古东部
英文关键词:reference crop evapotranspiration  ET0 calculation method  Irmark-Allen fitting method  eastern part of Inner Mongolia
基金项目:国家科技支撑计划课题“内蒙古东部节水增粮高效灌溉技术集成研究与规模化示范”(2014BAD12B03)；内蒙古自治区水利科技项目“通辽平原玉米喷灌水肥一体化技术研究”
作者单位
汤鹏程 中国水利水电科学研究院牧区水利科学研究所， 内蒙古 呼和浩特 010020 
何蒙 河北省水利科学研究院， 河北 石家庄 050000 
苗澍 中国水利水电科学研究院牧区水利科学研究所， 内蒙古 呼和浩特 010020 
郭克贞 中国水利水电科学研究院牧区水利科学研究所， 内蒙古 呼和浩特 010020 
任杰 中国水利水电科学研究院牧区水利科学研究所， 内蒙古 呼和浩特 010020 
王海瑞 内蒙古农业大学水利与土木建筑工程学院， 内蒙古 呼和浩特 010020 
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中文摘要:
      内蒙古东部地区，土地资源丰富，但气象站点偏少，相关气象资料匮乏，应用FAO56 Penman-Monteith法计算ET0在多数地区相对困难。依据内蒙古东部地区典型气象站点(通辽气象站)1974—2013年40年气象资料，以FAO56 Penman-Monteith法作为标准，以FAO-17 Penman法、Hargreaves-Samani法、Priestley-Taylor法、Irmark-Allen拟合法分别对ET0进行计算，就其与FAO56 Penman-Monteith法的相关性进行分析。结果表明，Hargreaves-Samani法和Priestley-Taylor法的计算结果要明显高于FAO56 Penman-Monteith法计算所得的结果，不适合内蒙古东部地区应用；FAO-17 Penman法结果与FAO56 Penman-Monteith法相关性最好，但是4—9月份相对误差较大；Irmark-Allen拟合法结果最接近FAO56 Penman-Monteith法（相对误差＜19%，R2＞0.92），计算简单且所需气象资料最少，更适宜内蒙古东部地区缺测气象条件下ET0的计算。
英文摘要:
      In eastern part of Inner Mongolia, the land resource is rich, but fewer meteorological station and lack of related meteorological data, so application of FAO56 Penman-Monteith method to calculate ET0 in most areas is rather difficult. This paper according to the 40 a (1974—2013) meteorological data from typical meteorological station (Tongliao) in eastern part of Inner Mongolia, taking FAO56 Penman-Monteith formula as the standard and FAO-17 Penman method, Priestley-Taylor method, Hargreaves-Samani method, Irmark-Allen fitting method as control, calculated the ET0 respectively. At the same time, carried out the relativity analysis with the FAO56 Penman-Monteith method. The results showed that: The calculation results by Priestley-Taylor method and Hargreaves-Samani method were obviously higher than the FAO56 Penman-Monteith method, so these two methods were not suitable to use in eastern part of Inner Mongolia. The correlation was the best by FAO-17 Penman method, but the relative error in April to September was rather big. The calculation result by Irmark-Allen fitting method was the most close to the FAO56 Penman-Monteith method (relative error＜19%，correlation coefficient R2＞0.92), which needs less meteorological data and simple calculation. Therefore, the Irmark-Allen fitting method is more suitable to calculate the ET0 in eastern part of Inner Mongolia which is lack meteorological data.
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