The performance and efficiency of classical fixed sprinkler and wheel move irrigation systems were compared in the Dehgolan Plain, north‐west Iran. The field and laboratory experiments were conducted with 10 classical fixed and 10 wheel move systems. Christensen coefficient of uniformity (CU), distribution uniformity (DU), potential application efficiency of low quarter (PELQ) and application efficiency of the lower quarter (AELQ) were used for the purpose of this assessment. The results showed a low efficiency due to improper design and management of classical fixed systems. Also, the results indicated that the wheel move systems used in the Dehgolan Plain performed well. The average mean values of the above coefficients (i.e. 12.6, 19.8, 21.5 and 14.5%) were higher in wheel move systems in comparison to those of classical fixed systems. Additionally, the average mean value of wind drift and evaporation losses (WDEL) and percolation losses (DP) were 0.45 and 1.17% lower in the wheel move systems, respectively, in comparison to those of classical fixed systems. The adequacy of irrigation (AD_irr) of the wheel move systems was 16.3% higher than that of classical fixed systems. Generally, the results showed that wheel move systems in the Dehgolan Plain have a substantially higher efficiency than the classical fixed systems. © 2020 John Wiley & Sons, Ltd.

中文翻译：

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伊朗西北德霍兰平原上经典洒水器和轮式灌溉系统的比较†

在伊朗西北部的德戈兰平原，比较了经典的固定喷洒和轮式灌溉系统的性能和效率。在10个经典的固定和10个车轮移动系统上进行了现场和实验室实验。评估的目的是使用Christensen均匀性系数（CU），分布均匀性（DU），低四分之一的潜在应用效率（PELQ）和低四分之一的应用效率（AELQ）。结果表明，由于经典固定系统的设计和管理不当，效率低下。此外，结果表明，德戈兰平原使用的车轮移动系统运行良好。与经典固定系统相比，车轮移动系统中上述系数的平均值（即12.6、19.8、21.5和14.5％）更高。另外，与传统的固定系统相比，车轮移动系统的风漂移和蒸发损失（WDEL）和渗滤损失（DP）的平均值分别低0.45和1.17％。灌溉的充足性（公元车轮移动系统的_irr）比传统的固定系统高16.3％。通常，结果表明，德戈兰平原上的车轮移动系统比传统的固定系统具有更高的效率。分级为4 +©2020 John Wiley＆Sons，Ltd.