The picture shows the siphon port of the South-to-North Water Diversion
. If there are any of the greatest projects in China, in addition to the high-speed rail network and UHV transmission technology, the South-to-North Water Diversion Project can definitely rank top, but many people question our South-to-North Water Diversion Project. , I think it’s just a lie, and I don’t even believe that this project can be realized. For this reason, American engineers also specially come to the site to investigate. After witnessing the miracle of China's water transfer, they wanted to apprentice on the spot, because the South-to-North Water Transfer not only solved the water shortage in the north. The problem has directly led to the development of the economy along the route.
The picture shows the South-to-North Water Diversion
The South-to-North Water Diversion is a super large project carried out in China. As the name suggests, its main function is to transport water resources from areas with abundant water resources in the South to the less abundant north, the Yangtze River region. Precipitation accounts for 1/3 of the national precipitation. Of course, the total cultivated land in this area is only 1/4 of the national cultivated land, and the per capita water volume exceeds the national average. It is a flooded area, but the population of the northern region exceeds that of the whole country. The cultivated land area accounts for 60% of China’s total, but the total water resources account for only 20% of the country’s total, and the seasonal distribution is extremely uneven. The contradiction between the supply and demand of water resources is very prominent. The lack of water resources has severely restricted the economic and social development of the northern regions, especially in the temperate monsoon climate zone of North China, where the annual precipitation is between 400 and 800 mm, and the rivers are not only small in flow, but also often affected by the seasons. After the change and the accelerated temperature rise in spring, the evaporation and drought will be particularly prominent. Therefore, the land of North China is in urgent need of new water sources. Otherwise, not only the local agricultural farming cannot use water for irrigation, but also the groundwater level will seriously drop, resulting in seawater intrusion. Serious consequences.
China’s South-to-North Water Diversion Project was born under such circumstances. The South-to-North Water Diversion Project can be divided into Eastern Route, Middle Route and Western Route. The first phase of the Eastern Route and Middle Route has been completed and the water supply to the north has begun. , And the construction of the west route has not yet started, and it is still in the process of feasibility verification. As a worldwide project, the South-to-North Water Diversion Project has encountered some insurmountable problems during the construction process.For example, the middle line project can be identified, and it will inevitably meet with the Yellow River. In order to ensure the water quality and at the same time, the mobilized water can pass through the Yellow River. China decided to dig a tunnel under the Yellow River so that the water can pass. After the completion of the water supply, it did not have any intersection with the Yellow River, effectively ensuring the water quality.
The picture shows the South-to-North Water Diversion
. In addition, the mid-line project also has more than 300 kilometers of water delivery channels that need to traverse the swelling land zone. This kind of soil is simply a nightmare for modern engineering construction. The strength of the water will drop sharply, leading to the collapse of the building, and the Chinese engineering builders have chosen two 1.5~2 km long test sections, conducted various experiments and conducted in-depth research and research, and finally achieved originality. The breakthrough solved this problem in one fell swoop.
In addition to mobilizing water resources from the south to the north, the South-to-North Water Diversion Project itself has also greatly improved China’s flood control and flood resistance capabilities. During the construction process, Danjiangkou Dam was increased, and Danjiangkou was increased. The flood control capacity of the reservoir directly increases the flood resistance capacity from once in 20 years to once in 100 years, and directly frees more than 700,000 people from the threat of flooding. Not to mention, the water resources mobilized by this project itself are beneficial to the northern regions. The impact of the masses and the supplementary effect on groundwater and rivers.
The picture shows the South-to-North Water Diversion Channel
. It is precisely because China has completed the effective engineering and construction of such a large enterprise in such a short period of time that foreign experts are not confident about it, and even have to I personally came to China to verify it. In the end, China also proved with facts that all the information about the South-to-North Water Diversion Project is true. This project is indeed a big project that can benefit the country and the people.
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