what makes China's irrigation system worthy of being a UNESCO World Heritage site
Answers
Dujiangyan Irrigation System, first built during the Warring States Period (475–221 BC), is located in the west of Dujiangyan City, sitting on the Minjiang River west of Chengdu. With a history of 2,200 years, the system is the oldest and only surviving no-dam irrigation system in the world. It is a wonder in the development of Chinese science and it is still in use.
Dujiangyan is a county-level city in Chengdu, a city praised as “Tian Fu Zhi Guo (Land of Abundance)” in China’s Sichuan Province. Chengdu suffered from floods and droughts frequently in ancient times. In 256 BC, Li Bing, the governor of Shu, together with his son, decided to construct an irrigation system on the Minjiang River to prevent flooding. The project receive great support and help from local people. It enables Chengdu to be free of flooding and is an important reason why Chengdu can become a “Land of Abundance.”
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