Dujiangyan was built in 256 BC, is the world so far, the oldest age, the only retention, diversion dam is characterized by a non-ambitious water projects. 2000 Over the years it has played a role in flood prevention and irrigation, so that the Chengdu Plain as floods, droughts and from human, Woyeqianli the Land of Abundance. World Cultural Heritage - Dujiangyan tourist area for the state AAAA-class tourist scenic areas, state-level scenic spots.
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