The traditional irrigation methods in Zhejiang are

China has added four world irrigation project heritages, namely Tianbaopi, Longshouqu Irrigation District, Baishaxi 36 Weir and Sangyuanwei.

1, Tianbaopi is located in the middle reaches of Longjiang River in Fuqing City, Fujian Province, and was founded in Tianbao period of Tang Dynasty (742-756). Tianbao North Dam is 216m long and 3.5m high, of which150m is an old dam built from Tang Dynasty to Ming Dynasty. It is the oldest existing large-scale water conservancy project in China, and it still irrigates the local10.9 million mu of cultivated land.

2. Longshou Canal is located in Weinan City, Shaanxi Province. It was built during the reign of Emperor Wu of the Han Dynasty. Because it pioneered the "well and canal method" of tunnel construction, it is known as the first underground canal in the history of China. Later, during the Republic of China, the Luo Hui Canal was built on the basis of the Longshou Canal. Up to now, 743,000 mu of farmland has been irrigated.

3. Baishaxi 36 weir is located in Jinhua City, Zhejiang Province, which is the oldest dam diversion irrigation project in Zhejiang Province. During the Eastern Han Dynasty, Baisha Weir was first built, and 36 weirs were built successively in the years of 100, with a span of 45 kilometers and a water level drop of 1.68 meters. At present, there are still 2 1 ancient weirs that continue to play the role of water diversion and irrigation, irrigating 278,000 mu of farmland.

4. Mulberry Garden was built in the Northern Song Dynasty, spanning Nanhai and Shunde districts of Foshan City and surrounded by Beijiang and Xijiang levees. It is the largest basic water conservancy project in China in ancient times, and it plays an important role in irrigation, flood control and drainage, water transportation and so on. The total length of dikes is 64.8 kilometers, the reclamation area is 265.4 square kilometers, and the irrigation area of farmland is 62,000 mu.

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The World Heritage List of Irrigation Projects was established on 20 14, aiming at sorting out the development course of world irrigation civilization, promoting the protection of irrigation project heritage, summarizing the wisdom of traditional irrigation projects in water control, and providing historical experience and enlightenment for the sustainable development of irrigation.

There are also 10 irrigation projects from India, Iran, Japan, South Korea and South Africa successfully selected into the World Heritage List of Irrigation Projects in 2020. At present, there are 105 irrigation project heritages in the world, which are distributed in 16 countries. .

World Wide Web-"Latest" China adds four world irrigation project heritage sites →