大连市现有耕地430万亩,其中水田56万亩,旱田374万亩,灌溉面积130万亩,因降雨不足且时空分布不均,春、秋旱时常发生。大连市从70年代起,先后引进、试验、研制、应用和推广了各种节水灌溉新技术,如喷灌、滴灌、渗灌、管灌等取得了节水和增产两方面的效益。据1990年底的不完全统计,全市共有节水型灌溉面积15.5万亩,其中,喷灌1246处,6.9万亩;滴灌140处,5.3万亩;管道灌溉84处,3.3万亩。 Dalian City, the existing 430 million mu of arable land, of which 56 million mu of paddy fields, 37.4 million acres of dry land, irrigation area of ​​130 mu, due to insufficient rainfall and uneven distribution of time and space, spring and autumn drought often occur. Since the 1970s, Dalian City has successively introduced, tested, developed, applied and popularized various new technologies of water-saving irrigation such as sprinkler irrigation, drip irrigation, seepage irrigation and pipe irrigation, and achieved the benefits of both water saving and stimulation. According to incomplete statistics at the end of 1990, the city had a total area of ​​155,000 mu of water-saving irrigation, of which 1246 were irrigated and 69,000 mu were irrigated; 140 were drip irrigation and 53,000 mu were irrigated; 84 were irrigated and 33,000 mu were piped.