How did Shu Han, which was plagued by floods and droughts in history, become a rich country of abund

Shu Han, known as the land of abundance, is a famous area of floods and droughts in history. The reason why it is called the land of abundance is also due to the prosperity and development of this region due to the later construction of water conservancy.

1. The Bashu region where drought and flood disasters are frequent.

Historically, natural disasters occurred frequently in the Chengdu Plain, especially floods and droughts. The Chengdu Plain is located in the Sichuan Basin, and the terrain is relatively flat. The Minjiang River, Jialing River, a tributary of the Yangtze River Basin, and other river network systems are intersected, and under the influence of the humid and rainy weather in the Chengdu Plain, there will be strong rainfall in the summer of each year, and the wet year and dry year will alternate.

Therefore, the common people in the Bashu area have suffered from floods and droughts for a long time. <>

2. Construct water conservancy.

In order to solve the problem of frequent floods, in 256 BC, the Qin State appointed Li Bing and his son to build a water conservancy project in this area, which is also known as the Dujiangyan Project. The basic principle of this project design is to carry out scientific planning according to the direction of water flow and the diversion of rivers, which not only solves the problem of local crop irrigation, but also helps the rainwater to drain out of the Chengdu Plain and into the Yangtze River during the flood season. The Dujiangyan water conservancy project has the cooperation of digging the water inlet of the treasure bottle, building the fish mouth diversion embankment and setting up the flying sand weir floodway, taking local materials, and strictly implementing the annual repair system, so that the Dujiangyan project has a new glow in the perennial use, and solves the problem of waterlogging disasters for the local people.

3. The origin of the country of abundance With the construction of the Dujiangyan project, the local small peasant economy in Bashu has developed rapidly. It is also because the local natural resources of Bashu are the largest in western China, so it relies on this to lead to early economic development. In particular, the Chengdu Plain has been the granary of China since ancient times.

Rice cultivation accounts for one-third of the country's crop production, and agricultural products are exported to other provinces and regions in large quantities to meet the needs of the province. Not only that, Bashu is also a national leader in animal husbandry and forestry. The reason why Bashu is called the land of abundance is determined by its unique geographical location and superior natural environment.

Because the land of Shu Han was originally relatively rich, and after controlling floods and droughts, it became a country of abundance.

Since Li Bing built Dujiangyan, Chengdu has become a land of fish and rice, and is no longer limited by water.

Because Dujiangyan is a famous water conservancy project, it diverts excess water to flow into farmland or the sea.

Because as the technology of river governance became stronger, people could control the river and not flood the fields, so the land of Shu Han became the land of abundance.