Why is the South-to-North Water Transfer Project so controversial?

First of all, the South-to-North Water Transfer Project has caused a wide range of social disputes since it was put forward. Opponents mainly think that the South-to-North Water Diversion Project is expensive, involving a large number of immigrants, and the water regulation is too small to bring economic benefits into play, while the water regulation is too large. The dry season may make the Yangtze River short of water, affect the navigation of the Yangtze River channel, deepen the salt tide in the Yangtze River estuary, and more easily lead to the natural environmental and ecological crisis in the Yangtze River basin.

Second, after the implementation of the South-to-North Water Transfer Project, the original flood storage and power generation function of the Three Gorges Project has been controversial. The simultaneous effects of the Three Gorges Project and the South-to-North Water Diversion Project may have an immeasurable impact on the middle and lower reaches of the Yangtze River (including ecology and shipping), especially in the dry season and dry season.

3. Liu Shukun, chief engineer of Institute of Hydraulics, China Academy of Water Resources and Hydropower Research, and chief engineer of Disaster and Environment Research Center, questioned that the South-to-North Water Transfer Project was due to the drought in southwest China at the beginning of 20 10. He believes that the once-in-a-century drought in southwest China should be corrected and the frequency and possibility of drought should be reassessed.

4. The relocation of nearly 330,000 people in Henan Province, the Middle Route of South-to-North Water Transfer Project, has brought turmoil to the lives of immigrants. Some immigrants can only buy a small piece of cultivated land because of insufficient compensation after buying the housing provided by the government. ?

5. The cost of the South-to-North Water Transfer Project has been higher than the existing cost of seawater desalination. The lowest cost of seawater desalination is about 3 yuan, and the cost of South-to-North Water Transfer Project is about 18 yuan. It is also reported that it has reached 18 yuan.

6.20 1 1 In the first half of the year, the three provinces of Hunan, Hubei and Jiangxi in the lower reaches of the Three Gorges suffered an unprecedented drought, and more than 300 reservoirs in Hubei Province alone were below the dead water level. The water levels of Poyang Lake, Dongting Lake and Hongze Lake are seriously low, and the largest freshwater lake in China has only one tenth of the water area. This series of events has aroused widespread doubts about the Three Gorges Dam from all walks of life.

superiority

1. Relieve the threat to the Yangtze River Basin in flood season.

A large number of South-to-North Water Diversion Projects will alleviate the flood disaster in the Yangtze River area. After the completion of the Middle Route of South-to-North Water Transfer Project, the flood control situation of Hanjiang River is expected to be reversed. The heightening project of Danjiangkou Reservoir has been basically completed, and the South-to-North Water Transfer Project plans to transfer 9.5 billion cubic meters of water from Danjiangkou every year.

In recent years, when similar floods reappeared, the flood summit in the middle and lower reaches was "cut" by 30 cm. This means that the 14 levee between Yicheng and Shayang in Hubei Province may not be opened if it is flooded once in a hundred years. Nearly 800,000 people and more than 900,000 mu of cultivated land have basically lifted the flood threat.

2. Promote the economic development in the north.

Greatly improve the ecological environment conditions in the northern region, especially the water resources conditions, increase the carrying capacity of water resources, improve the efficiency of resource allocation, and promote the strategic adjustment of economic structure; This is of great strategic significance for expanding domestic demand, maintaining rapid economic growth in China, and realizing nationwide structural upgrading and sustainable development of economic and social environment.

It is beneficial to alleviate the restriction of water shortage on the urbanization development in northern China and promote the local urbanization process. It can improve the production conditions of agriculture and animal husbandry, adjust the planting structure of agriculture and animal husbandry and improve the land utilization rate. It can also be changed from sewage irrigation to clear water irrigation to reduce farmland pollution and harm to agricultural and sideline products. ?

3. Improve the water quality and ecological environment in the north.

It can effectively solve the groundwater quality problems caused by natural reasons in some northern areas, such as high fluorine water, brackish water and other water sources containing harmful substances harmful to human health, and improve the local drinking water quality. Avoiding water-borne diseases caused by long-term exploitation and drinking of harmful deep groundwater in some northern areas, and curbing the spread of skeletal fluorosis and thyroid diseases are conducive to improving the health level of residents.

By improving the conditions of water resources, the potential productivity can be promoted to form realistic economic growth, and the ecological environment in the Huang-Huai-Hai region can be gradually improved. After improving the water supply capacity in the north, the over-exploitation of groundwater can be reduced, and the groundwater can be supplemented by artificial recharge and seasonal adjustment, so as to improve the hydrogeological conditions, alleviate the sharp drop of groundwater level and the further expansion of funnel area, and control the harm of ground subsidence to buildings.

Northern China will gradually become a society with reasonable allocation of water resources and good water environment.

Refer to the above? Baidu Encyclopedia-South-to-North Water Transfer Project