Appraisal case of South-to-North Water Transfer Project

According to the water quality protection situation of the middle route project of South-to-North Water Transfer Project jointly notified by the State Council South-to-North Water Transfer Office and the Ministry of Environmental Protection, the overall water quality of the reservoir area and the incoming rivers is excellent.

In China, drinking water must meet at least the requirements of Class III water, but according to reports, the water quality of Taocha water intake in Danjiangkou Reservoir is higher than that of Class II water. The water quality compliance rate of the main inflow rivers is 97.4%. However, most of Danjiangkou Reservoir's water comes from Hanjiang River, which accounts for 90% of the total inflow, and its water quality is stable. The water quality analysis of Danjiangkou Reservoir shows that the water quality of Danjiangkou Reservoir is also stable.

However, the over-standard section is mainly located in the downstream of the town, and the runoff is small, which has little impact on the water quality of Danjiangkou Reservoir. For example, the five rivers that pass through Shiyan City, namely Shending River, Sihe River, Heyao River, Guanshanhe River and Jianhe River, although the water volume is very small, accounting for less than 1% of the total inflow, the water quality of the five rivers is neither black nor smelly after the current regulation, and the water quality has been obviously improved. Some rivers have become Class III water, while others have changed from inferior Class V and V to Class IV water.

20 1410 June14 Jun Gao, Director of Rural Economic Department of National Development and Reform Commission, responded to the serious water pollution problem of South-to-North Water Transfer Project. The initial planning and design of the South-to-North Water Transfer Project focused on urban water supply, giving consideration to agricultural and ecological water use. From the middle route of South-to-North Water Transfer Project, the water quality of Danjiangkou Reservoir is relatively good, and some tributaries have water pollution problems, but it does not affect the overall situation.

In view of the water pollution problems in individual places, individual pollution points and individual tributaries, the Development and Reform Commission and other relevant departments attach great importance to it, are taking serious measures to control it, and will further take necessary prevention and control measures. The water quality problem of the east route of South-to-North Water Transfer Project has generally reached the expected planning and design objectives. At the same time, 1 and the "three lines" will lead to immeasurable changes in the ecology along the river, which is not conducive to protecting the existing ecology along the river. This may lead to the decrease of channel capacity in the dry season of the Yangtze River. The scope and degree of its ecological impact have gone far beyond the understanding of China "experts".

2. The interaction between the Middle Route Project and the Three Gorges Project will cause environmental changes in the middle and lower reaches of the Han River and the Yangtze River, and cause immeasurable losses to Wuhan.

3. The influence of the East Route Water Diversion Project on the Yangtze River Estuary leads to the secondary salinization of the soil in the northern irrigation area. 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 330,000 people in Hubei Province and Henan Province of the Middle Route Project of South-to-North Water Transfer 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. At present, the lowest cost of seawater desalination is about 3 yuan, and the current 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.