The conception of the engineering scheme began with 1952? [2] President Mao Zedong put forward during his inspection of the Yellow River. Since then, through the analysis and comparison of more than 50 schemes, the water transfer scheme has achieved many valuable results. The planning area of South-to-North Water Transfer Project involves a population of 438 million, and the water transfer scale is 44.8 billion cubic meters. ? [3] The total length of the east, middle and west trunk lines planned by the project is 4,350km. The first phase of the East and Middle Lines is 2,899 kilometers long, and the first-class supporting branch canals in six provinces and cities along the line are about 2,700 kilometers.
From 2065438 to September 2002, the relocation of migrants in Danjiangkou reservoir area of the Middle Route of South-to-North Water Transfer Project was fully completed. The South-to-North Water Transfer Project mainly solves the problem of water shortage in northern China, especially in the Huang-Huai-Hai River Basin, with a population of 438 million. * * * There are three water transfer lines, namely the East Line, the Middle Line and the West Line, which are connected with the Yangtze River, the Yellow River, the Huaihe River and the Haihe River, forming an overall layout with "four horizontals and three verticals" as the main body, which is helpful to realize the rational allocation pattern of water resources in China.
The Middle Route Project of South-to-North Water Transfer and the East Route Project of South-to-North Water Transfer (Phase I) have been completed, and water has been transferred to the northern region. Up to now, the west line project is still in the planning stage and has not started construction.
Chinese name
South-to-North water diversion
Foreign name
South-to-North water diversion
The construction of the eastern route has begun.
65438+Set out from Sanjiangkou on February 27th, 2002.
Midline start
65438+February 3, 20031,starting from Danjiangkou Reservoir.
West line
Not started
Water transfer scale
44.8 billion cubic meters
waterhead
Dong: Sanjiangkou? ; ? Central: Danjiangkou
Engineering significance
National strategic project
industry
Regional economy, strategic management, water conservancy
attribute
At the national level, water resources allocation
Water model
Long-distance water conveyance with four horizontal lines, three vertical lines and multiple starting points
Relate to the field
North China Plain, Huaihai Plain and Southwest China
bring benefit to mankind
438 million people
Total length of water conveyance
The east, middle and west trunk lines are 4350 kilometers.
geographical position
Eastern, Central and Western China
Attribution country
China
social meaning
1 to solve the water shortage problem in the north;
2. Increase the carrying capacity of water resources and improve the efficiency of resource allocation;
3. Make northern China a water-saving and pollution-proof society with reasonable allocation of water resources and good water environment;
4. It is beneficial to alleviate the restriction of water shortage on the urbanization development in the northern region and promote the local urbanization process;
5. Ensure the perennial navigable water source of Jining-Xuzhou section of Beijing-Hangzhou Canal. The two major commodity grain bases in western Shandong and northern Jiangsu have been consolidated and developed.
economic meaning
1, providing guarantee for the economic development in the north;
2. Optimize the industrial structure and promote the strategic adjustment of the economic structure;
3. Improve the potential productivity and form economic growth by improving water resources conditions;
4. Expand domestic demand, promote harmonious development and increase GDP.
Ecological significance
1, improve the ecological environment in Huang-Huai-Hai area;
2. Improve the quality of local drinking water in the north, and effectively solve the groundwater quality problems caused by natural reasons in some parts of the north, such as high fluorine water, brackish water and other water sources containing substances harmful to human health;
3. It is beneficial to replenish groundwater in the north and protect local wetlands and biodiversity;
4. Improve the environment deteriorated by water shortage in the north;
5. Greatly improve the ecological environment conditions in the northern region, especially the water resources conditions.