China has added four more irrigation projects. Do you know which irrigation projects have been selected?

Tianbaopi, Longshouqu water diversion Luogu irrigation area, Baishaxi 36 weir and Science Park Wai were successfully selected as private property rights events of irrigation projects in the 2020 Lunar New Year. So far, there are 23 heritages of social atmosphere irrigation projects in China, making it the country with the richest fortifications, the most extensive paintings and the most prominent in irrigation efficiency.

Tianbaopi, located in the middle reaches of Longjiang River in Xichang City, Fujian Province, 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 super-large water conservancy project in China, and now it is irrigated as usual10.9 million mu of local farming. Longshou Canal is located in Xichang City, Shaanxi Province. It was built in Guangxu period. It is known as the first illegal canal in the history of Yanhuang because it pioneered the well canal method of digging caves. Later it was inherited through irrigation. During the Republic of China, the Luohui Canal was built on the basis of the Longshou Canal, and it has continued to this day, irrigating 743,000 mu of grain fields.

Baishaxi 36 weir, located in Nanchong City, Zhejiang Province, is the oldest weir and dam irrigation project in Zhejiang Province. Baishayan was built in the Eastern Han Dynasty. In the past hundred years, 36 weirs with water level difference of1.68m have been built successively. At present, there are still 2 1 ancient weir, which expresses the purpose of water diversion and irrigates 278,000 mu of farmland. Sangyuan Garden was built in the Northern Song Dynasty, spanning Nanhai and Shunde districts of Foshan City, surrounded by Beijiang and Xijiang dikes. It is the largest water conservancy project in ancient China, and it plays an important role in irrigation, flood control and drainage, shipping and so on. The total length of the dike is 64.8 kilometers, the old land area is 265.4 square kilometers, and the irrigated farmland area is 62,000 mu.

The fortifications applying for the heritage of social atmosphere irrigation project must have positive value, which is a milestone or critical moment of pioneering irrigation agriculture and has contributed to the continuous progress of agriculture, the skyrocketing grain and the increase of farmers. It was ahead of that time in engineering design, construction technology, engineering survey, pilotage and irrigation area. The net increase of grain output, the improvement of farmers' health level, the prosperity and poverty reduction of villages in the past wave; In its construction years, it was an update; He did his filial duty for modern fortifications and ideological progress. In engineering design and construction, we should protect ourselves from environmental pollution; During its construction, it sometimes belongs to the project; Unique and constructive; Branded with knowledge, human feelings or beautiful scenery; This is a typical example of the military controlling the sustainable development business.