成都市虽然地处都江堰灌区，有较为优越的灌溉条件。但是，近年来随着都江堰灌区的扩展，工农业用水的增长，水资源供求矛盾日益突出。平坝区有2万hm’农田处于都江堰尾水灌区，稍通干旱就难以适时栽秧，丘陵区还有5．33万hm2农田没有灌溉保障。因此，节水灌溉不仅是缓和农田灌 Although located in Dujiangyan Irrigation District of Chengdu, there are more superior conditions for irrigation. However, with the expansion of irrigation area in Dujiangyan and the growth of water for industry and agriculture in recent years, the contradiction between water supply and demand has become increasingly prominent. Pingba District, 20,000 hm ’farmland in Dujiangyan tail water irrigation area, a little drought difficult to timely planting, hilly area there are 53,300 hm2 farmland without irrigation protection. Therefore, water-saving irrigation is not only to ease farm irrigation