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Dujiang Irrigations System

Dujiang Irrigations System

The Dujiang Weir in Southwest China's Sichuan Province represents ancient China's superb science and technology and is a milestone in the world's water harnessing and irrigation history. Built during the Warring States Period, the weir has a history of 2,300 years. During the past centuries it has played an important role in irrigation and flood-prevention, and is a paradigm within the history of water conservancy construction in China. Through application of hydromechanics theories, and other sciences, this weir is able to discharge flood-water in the rainy season, irrigate farmland in the dry season, and also effectively tackle silt sedimentation. Dujiang Weir attests to the wisdom and ability of Chinese ancestors.
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