What does the Three Gorges Influence mean?

1. The impact of the Three Gorges refers to the frequent occurrence of abnormal climate in China in recent years, such as drought in southwest China, intense heat in Chongqing, and heavy rain in the two lakes basin. The Three Gorges is often targeted. On the Internet, netizens put forward the theory of "Three Gorges induced drought", claiming that the Three Gorges Project was the chief culprit of the rare drought in the middle and lower reaches of the Yangtze River in 20 1 1 year.

2. The Three Gorges Reservoir has a huge capacity, which will inevitably increase the frequency of earthquakes in the reservoir area. In the future, due to the long-term immersion of the lower part of the mountain on both sides of the Three Gorges, the frequency of landslides, landslides and mudslides will increase, which will be the main geological disasters that may be caused by the Three Gorges Project. However, the project proponent only considers the static state of the geology, without considering the possible qualitative change of the geological conditions after impoundment.

3. Geological disasters: Experts said that after the completion of the Three Gorges Reservoir, a large number of low-lying mountains including cities, market towns and villages were gradually submerged. Long-term immersion softens the submerged mountain and rushes into the low-lying mining goaf, which will lead to bank collapse and landslide. In addition, the periodic fluctuation of water level in the Three Gorges Reservoir in winter and summer (flood season) will also cause pressure on the areas along the reservoir and induce various geological disasters.

4. Lightning strike: From April to August, 2007, lightning strikes occurred many times in the reservoir area and its adjacent areas, especially in Chongqing, resulting in 2/kloc-0 deaths, and the disaster losses were heavier than in previous years. Among them, in April 1 day, lightning strikes in Dianjiang and Qijiang in Chongqing caused 5 deaths; On May 23rd, a lightning strike accident occurred in Xingye Village Primary School in Yihe Town, Kaixian County, Chongqing, resulting in 7 primary school students' deaths, 19 serious injuries and 25 minor injuries. Strong winds and hail: In 2007, strong convective weather such as strong winds and hail occurred frequently in the reservoir area and its adjacent areas, with a wide range of points and a long time span, which occurred one after another from spring to summer, and the disaster losses were heavier than the previous year. According to statistics, more than 50 counties have been hit by local strong convective weather such as strong winds and hail, resulting in three deaths, more than 2.3 million people affected, more than 83,000 houses damaged, and economic losses due to the disaster exceeded 380 million yuan.

5. Fog: In the winter and late autumn of 2006/2007, foggy weather frequently occurred in most parts of the western part of the reservoir area, which affected expressway, railways, civil aviation, river transportation and other transportation to varying degrees, brought inconvenience to people's travel in Spring Festival travel rush, and caused major traffic accidents, which led to the decline of air quality and affected human health. On February 7, a serious traffic accident occurred in Hefeng County, Enshi Prefecture, Hubei Province, which caused 16 deaths and 16 injuries due to rain and fog. 1 65438+1October 9, Chongqing airport was blocked by heavy fog, and only1hour caused 30 inbound and outbound flights to be delayed, 4 flights were cancelled, and 4,000 passengers were stranded at the airport; Eight expressway cities including Chengdu-Chongqing Expressway and Chongqing-Yichang Expressway have successively implemented traffic control; The waterway Chaotianmen Sandu route was banned for 4 hours.

6. Drought: In 2007, the drought in the reservoir area was generally light. In the winter of 2006/2007, due to the severe high temperature and drought in Sichuan and Chongqing last summer, the storage of reservoirs and paddy fields in Chongqing was obviously less, the river water level generally hovered in the low water level area, and the groundwater dropped sharply. The water storage capacity of Chongqing water conservancy project is less than 50% of the water storage capacity in the same period in history. There are 6.5438+0.5 million people and 980,000 large livestock in the city with temporary drinking water difficulties and crops suffering from drought 1654. Recently, the middle and lower reaches of the Yangtze River suffered the worst drought in 50 years, which made people focus on the Three Gorges Project again. On May 6th, 2008, the executive meeting of the State Council discussed and approved the follow-up work plan for the Three Gorges Project, which started in 2009.