The distribution of precipitation and water resources in the region is uneven, so different regions have produced different agriculture, which has been developing since ancient times. Therefore, the characteristics of crops are mainly rice in the south and wheat in the north. Since ancient times, the dry land in the north also needs some water sources for irrigation, and in some places where drought is particularly serious, water sources are very precious. Since ancient times, the problem of water shortage has been paid attention to.
In our country, water conservancy construction is continuous, which effectively solves the drought problem in the north and plays a very important role in the development of agriculture.
Since the origin of Chinese civilization, farming has been the mainstay, so there have been some new drainage systems for agricultural problems since ancient times. Some of these water conservancy projects have existed for thousands of years, but they can still be used normally and play a certain role in the drainage system. The earliest water conservancy projects in China were mainly used for flood control, which has a history of 5000 years. Our ancestors used these projects for some agricultural production, which also.
Dayu flood control is a very famous water conservancy project, which is still in use today. The emergence of water conservancy projects can be counted from the pre-Qin period, when the theory of water conservancy just started. After the Xia Dynasty, people had a clear plan for Longquan, so some simple water conservancy projects appeared to solve the irrigation of farmland. These reasonable water conservancy projects have greatly increased the output of crops.
By the Western Zhou Dynasty, this kind of water conservancy project built for farmland had further development. During this period, the idea of governing the country first and managing water began to spread.