Qingchengshan-Dujiangyan National Park
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How it came to be
In the 3rd century BC King Zhaoxiang of Qin sent Li Bing to govern Shu, the newly conquered land of present-day Sichuan. Li Bing set out to tame the floods of the Min River and carry its water to the Chengdu plain, and work on the Dujiangyan system is dated to around 256 BC.
Dujiangyan uses no dam. It relies on the terrain and the river itself to divide the water, flush sediment and control floods and flow, through the Yuzui bypass dike, the Feishayan floodgate and the Baopingkou channel. It was enlarged under the Tang, Song, Yuan and Ming dynasties and still irrigates 668,700 ha of farmland.
On nearby Mount Qingcheng the teacher Zhang Ling is said to have founded the doctrine of Taoism in 142. Temples were built there under the Jin and Tang, and the mountain became a centre of Taoism again in the 17th century. The site was inscribed in 2000. In the earthquake of 12 May 2008 the irrigation system was left largely undamaged, while several Taoist shrines were damaged and later repaired.
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