Later generations also commented that "Li Taishou was not as good as Bo Yu at first", that is, Li Bing built Dujiangyan to benefit the people for more than 2, years, which was greater than Dayu's;
Dujiangyan, built by Li Bing in the middle reaches of Minjiang River, eliminated the flood of Minjiang River and irrigated a large area of farmland, which made Chengdu Plain become "a land of plenty".
Chengdu Plain is so rich that it is called "Tianfu" paradise. Fundamentally speaking, it is the result of Li Bing's creation of Dujiangyan. Therefore, Historical Records said: "The completion of Dujiangyan has made the Chengdu Plain" flood and drought depend on people, and there is no famine, and the world is called' Tianfu' ".
Sima Qian, the Taishi Duke, wrote down the water conservancy expert and local official who created Dujiangyan's great achievements in his Historical Records, but he only wrote "Shu Shoubing" and did not write his surname. The water conservancy expert's surname was later supplemented by Ban Gu's Hanshu. It is good for Ban Gu to write Li Bing's name, because Li Bing, a stone carving of the Eastern Han Dynasty unearthed in Waijiang in 1974, is clearly engraved with his name on his skirt.
It is recorded in historical records that Li Bing founded Dujiangyan, and "chiseling away from the pile" means opening a hole at the foot of the front hill, which is the mouth of Baokou and the Neijiang River below it. To "backwater the river as a gate" is to build the Jingang Dike to divide water and dig the water diversion channel. "Crossing the Second River in the Chengdu River" means opening the Baitiao River and Zouma River near Taiping Street in Pubai Bridge today. The fish mouth draws water through the bottle mouth and flows into the Erjiang River, so as to facilitate the floating of wood and bamboo, irrigation and shipping. This is what "Historical Records" said. "All the canals can be used for boating, and the surplus is irrigated and soaked, so the people can benefit from it." In addition, Li Bing is still on the right bank of Minjiang River. Near the head of Dujiangyan canal, another artificial river, Yangmo River, was opened to irrigate the vast area west of Minjiang River. This river enters Chongqing County through the territory of Yutang Town, Zhongxing Town, Minxing Township and Xudu Township, with a total length of about 6 kilometers, so it is generally in today's Shahe River.
Li Bing's life is not recorded in ancient books, because Qin Shihuang engaged in burying Confucianism and burning books, and the war in Qin and Han Dynasties destroyed too many files and documents. Although there are many disputes about the construction time of Dujiangyan in ancient and modern history, most scholars agree that it was in 256 BC.
Li Bing is a local official who loves the people and an outstanding scientific and technological expert. During his tenure in Sichuan, he not only created Dujiangyan, which benefited the whole world, but also built many projects that benefited the people. In addition to Dujiangyan, he also built seven bridges in Chengdu, repaired the stone rhinoceros creek, built Wenjing River in Chongqing County, drilled salt wells in Guangbu, regulated the river at the Sanjiang River in Leshan, regulated the waterway in Yibin, dredged the Luoshui River in Shifang County and diverted water for irrigation. His contribution can be said to be "a thousand years", which is immortal, and its scientific value and huge economic benefits are still few and far between in human history.
Of course, Li Bing's contribution to water control is not limited to him. In addition to the hard work of the broad masses of working people, there is his son Li Erlang. There are few historical records about Li Erlang, and there are many opinions, some of which are true and some are false. "Guanxian Annals" said that "Li Erlang's history is lost, his name is undocumented, and he likes hunting", which is considered to be true. Zhu Xi, a famous Neo-Confucianism scholar in Song Dynasty, said in Zhu Zi Yu that "Jiro Liukou is Li Bing's second son", so Song Zhenzong "stabbed the monument to Li Erlang". In this way, he officially became a member of the Li Bing family, and became one of the founding fathers who assisted his father in his great achievements. He has also been admired, admired and worshipped by the broad masses of people for a hundred years.
China has a famous saying: It is difficult to start a business, and it is even more difficult to keep it. Li Bing is the great achievement in creating Dujiangyan, but it is not easy to keep it forever. In history, there have been torrential rains, catastrophic floods, burst banks and flooded farmland, and white waves have been raging, which often happens in Wang Yang, Woye Plain. Therefore, the maintenance of Dujiangyan was regarded as a major event at that time in all previous dynasties. In this long history, Emperor Wen of the Han Dynasty defended Wen Weng in Shu County, Zhuge Liang as Prime Minister of Shu in the Three Kingdoms, Gao Jian as a long history of Mengzhou in the Tang Zhenguan period, Liu Yicong as a long history of Pengzhou in the Wu Zetian period, Zhang Qiu and Qiong in the Tang Xuanzong period, Gao Pian in Sichuan Province in the late Tang Dynasty, Zhao Bubai in the Song Dynasty, Li Bingyi and Ji Dangpu in the Yuan Dynasty, Lu Liyu and Shi Qianxiang in the Ming Dynasty, Wang Laitong, Qiang Wangtai and Qing Dynasty.