“三引”工程是松嫩平原西部的北部引嫩、中部引嫩和南部引嫩三项综合性引水工程的简称。“三引”工程建成后,获得了较好的经济效益和社会效益,对满足大庆石油化工用水,促进当地苇、渔、农、牧业的发展和改善生态环境,减轻干旱、风沙、盐碱灾害都起到了很大的作用。“三引”工程年 “Three cited ” project is the abbreviation of three comprehensive diversion projects in the north of Songnen Plain, Nennen in central China, and tender in south China. After the completion of the project of “Three Courses”, the project has obtained relatively good economic and social benefits. It is of great value in meeting the needs of petrochemical water supply in Daqing, promoting the development of local reeds, fisheries, agriculture and animal husbandry as well as improving the ecological environment, alleviating the drought, Saline hazards have played a significant role. “Three leads ” project year