本文采用横向多点取样法建立蔬菜喷灌增产效果的生产函数模型,估算1982年到1988年上海市郊蔬菜喷灌经济效益,并以纵向对比法结合灌溉效益分摊系数法进行校核。结果表明,两种方法非常接近,可以认为两种方法计算结果是令人满意的。此外,本文对喷灌的省工经济效益也做了定量的计算,仅供读者参考。 In this paper, a production function model of vegetable sprinkler irrigation yield enhancement was established by horizontal multi-point sampling method. Economic benefits of vegetable sprinkler irrigation in Shanghai suburbs from 1982 to 1988 were estimated and compared with longitudinal contrast method and irrigation benefit sharing coefficient method. The results show that the two methods are very close, it can be considered that the results of two methods are satisfactory. In addition, this article also calculated the economic benefits of sprinkler irrigation workers, for reader’s reference only.