阿勒泰地区参考作物潜在腾发量计算方法研究

参考作物潜在腾发量是生态系统水分循环与水量平衡的重要组成部分，对脆弱的阿勒泰地区生态环境演化发展有着至关重要的意义。为了提出适用于新疆阿勒泰地区的ET0计算方法，利用2010年5月1日—9月30日阿勒泰地区福海县气象站逐日气象资料，以FAO56 Penman-Monteith方法计算的ET0为标准，比较与其他4种不同方法的差异性与相关性，分析了计算结果的偏差原因，对各种计算方法在阿勒泰地区的适用性进行了评价。结果表明，在全生育期的大部分时段FA056 PM法与FAO Penman法和IA法的计算结果较为接近，相对误差为9.26%和13.51%，PT法和HS法计算的ET0较FAO56 PM计算值总体偏大，且偏差较大。

Calculation Methods Comparison of Reference Crop Evapotranspiration in Aletai Region of Xinjiang

Reference crop evapotranspiration is an important part of the ecological system of water cycle and water balance, has important significance on the evolution of the fragile ecological environment development in Aletai Area. In order to propose a suitable method of computing ET0 in North Xinjiang, this paper compared the differences and relations between the 5 calculation formula, and analyzed the cause of the deviation, at last evaluated the applicability of computational method by using the May 1st - September 30th in 2010 in Fuhai County Weather Station daily meteorological data. The results showed that, FA056 PM method, FAO Penman method and IA method got approximated calculation results which relative error was 9.26% and 13.51%, ET0 calculated by PT method and HS method had overall greater results at most of the time during the whole growth period.