都江堰水利工程充分利用当地西北高、东南低的地理条件，根据江河出山口处特殊的地形、水脉、水势，乘势利导，无坝引水，自流灌溉，使堤防、分水、泄洪、排沙、控流相互依存，共为体系，保证了防洪、灌溉、水运和社会用水综合效益的充分发挥。都江堰建成后，成都平原沃野千里，“水旱从人，不知饥馑，时无荒年，谓之天府”。四川的经济文化有很大发展。其最伟大之处是建堰两千多年来经久不衰，而且发挥着愈来愈大的效益。都江堰的创建，以不破坏自然资源，充分利用自然资源为人类服务为前提，变害为利，使人、地、水三者高度协调统一。
都江堰渠首枢纽主要由鱼嘴、飞沙堰、宝瓶口三大主体工程构成。三者有机配合，相互制约，协调运行，引水灌田，分洪减灾，具有“分四六，平潦旱”的功效。
Dujiangyan water conservancy project makes full use of local geographical conditions of high northwest, southeast low, according to the mountain rivers in special terrain, water vein, water potential, return pattern, no dam diversion, gravity irrigation, the embankment, water, water, sand, curtains on interdependence, for system, to ensure the water flood control, irrigation, water transportation and social comprehensive benefits into full play. After the completion of dujiangyan, the chengdu plain lies thousands of miles, "province.with from people, do not know famine, when no famine," tianfu ". Culture has a great development of the economy in sichuan province. Its greatest dam was built two thousand years enduring, and it plays a more and more big. Dujiangyan to create, in order to does not destroy the natural resources, make full use of natural resources for human services for the premise, change for profit, make the person, the land, water three highly harmonious and unified.
Hub of dujiangyan irrigation system is mainly composed of fish mouth, fly sand dam, BaoPingKou three major projects. All organic coordination and restraining each other, coordinated operation, water diversion irrigation fields, the flood disaster reduction, with the effect of "hexagon, flat flow drought".
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