Which are the four famous water conservancy projects in ancient China?

The four major water conservancy projects are: It Shan Weir, Zheng Guodu, Lingqu, Dujiangyan.

One, it mountain weir

It (tuō) mountain weir is a great water conservancy project created by the ancient Chinese working people. Belongs to the yinjiang river tributary of yong river built on the imperial salt water diversion irrigation hub project.

It is located in ningbo city, zhejiang province, haishu district, yinjiang town, it is next to the mountain, zhangxi outlet. Located in the southwest of Ningbo City, Zhejiang Province, Tang Dynasty, Taihe seven years (833 AD) by the county magistrate Wang Yuanwei founded.

It and the domestic Zheng Guo canal, Lingqu, Dujiangyan known as China's ancient four major water conservancy projects, is a national key cultural relics protection units, the world heritage of irrigation engineering.

Two, Zheng Guoqu

Zheng Guoqu, a great project built by the ancient working people, belongs to the earliest large-scale water conservancy project built in Guanzhong, is located in today's Jingyang County, Shaanxi Province, 25 kilometers northwest of the northern bank of the Jing River. It drew Jing water in the west and injected Luo water in the east, and was more than 300 miles long (the irrigated area was claimed to be 40,000 hectares).

The Zhengguo Canal was pierced by Qin in the late Warring States period. It was built in 246 B.C. (the first year of Qin's reign) under the auspices of Jung, a Korean plumber, and was completed about ten years later.

Three, Lingquan

Lingquan, the ancient name of Qin chiseled canals, zero canals, steep river, Xing'an Canal, Xianggui Canal, is a great project created by the working people of ancient China. Located in Xing'an County, Guangxi Zhuang Autonomous Region, it was chiseled and opened to navigation in 214 BC.

The Ling Canal flows from east to west, connecting the Ocean River (the source of the Xiangjiang River, flowing from south to north) in the east of Xing'an County and the Dazhou River (the source of the Li River, flowing from north to south) in the west of Xing'an County, and it is one of the world's oldest canals, with the reputation of being the "pearl of the world's ancient water conservancy architecture".

Four, Dujiangyan

Dujiangyan is located in Chengdu City, Sichuan Province, Dujiangyan City, west of the city, is located in the western Chengdu Plain on the Minjiang River, built in the end of King Zhao of the Qin Dynasty (about 256 ~ 251 B.C.), is the governor of the county of Shu, Li Bing, father and son, in the former Tailing excavation on the basis of the organization of the construction of large-scale water conservancy projects, by the diversion of the fish mouth, the Flying Sandy Weir, the mouth of the bottle, and other parts of the composition.

For more than 2,000 years, it has been playing the role of flood control and irrigation, making the Chengdu Plain the "Land of Heaven" with water and drought from the people and thousands of acres of fertile land, and the irrigation area has reached more than 30 counties and cities, with an area of nearly 10 million mu.

It is the world's longest, the only surviving, still in use, with no dam diversion as the characteristics of the grand water conservancy project, cohesion of the ancient Chinese working people hard work, bravery, wisdom of the crystallization.

Expanded information:

The four major water conservancy projects in the historical significance:

One of them is the Zheng Guo canal

After the completion of the canal, it greatly changed the Guanzhong Agricultural production in Guanzhong greatly changed the face, with the injection of water to fill the silt, irrigate the land of the Zehalu. That is, with a larger amount of sediment in the Jing water for irrigation, increase soil fertility, agriculture, quickly developed, rainfall is scarce, land barren Guanzhong, become affluent A world ("Historical Records - River Drainage Book").

Two, it mountain weir

Now most of the weir body buried under the sand, no longer lead irrigation. It mountain temple after reconstruction, the addition of "it mountain weir water conservancy exhibition hall" and in the annual lunar March 3 and October 10 (legend has it that wang yuan wei built the weir that year exactly 33 years old, October 10 for his birthday) to restore the ancient temple fair.

October 13, 2015 morning, local time on the evening of the 12th, held in Montpellier, France, the International Commission on Irrigation and Drainage of the 66th International Executive Council, announced the 2015 selected list of the world's irrigation engineering heritage.

Three, Lingqu

Lingqu's chiseling, communication of the Xiangjiang and Li River, opened up the north-south waterway, for the Qin Dynasty unified Lingnan provides an important guarantee, a large number of grain and grass by water to Lingnan, with sufficient supplies.

In 214 B.C., the year that the Lingqu River was opened to the sea, the Qin soldiers conquered Lingnan, and immediately set up Guilin, Xiangxian, and Nanhai counties, formally incorporating Lingnan into the Qin dynasty's territory.

Four, Dujiangyan

Dujiangyan's creation, creating a new era in the history of ancient Chinese water conservancy. The creation of Dujiangyan, without destroying natural resources, make full use of natural resources for human services as the premise, change harm into benefit, so that people, land, water, a high degree of synergy and unity, is the world's only remaining great "ecological engineering".

The Dujiangyan Water Conservancy Project created a new era in the history of ancient Chinese water conservancy, marked a new stage in the history of Chinese water conservancy, and wrote a glorious chapter in the history of water conservancy in the world. Dujiangyan water conservancy project, is the crystallization of the wisdom of the ancient Chinese people, is an epoch-making masterpiece of Chinese culture.

Baidu Encyclopedia - Zheng Guo Canal

Baidu Encyclopedia - It Shan Yan

Baidu Encyclopedia - Ling Canal

Baidu Encyclopedia - Dujiangyan