Disaster situation:

In July, the flood volume of main stations in the middle and lower reaches of the Yangtze River exceeded 1954, of which Yichang Station121500 million cubic meters exceeded 1954.45 billion cubic meters, and Hankou Station164.8 billion cubic meters exceeded1954. The main dike of the Yangtze River burst at Jiujiang levee and was successfully blocked in a few days.

Reason:

Since June, there have been three continuous large-scale heavy rainfall processes in the Yangtze River Basin. The first time is June 12 to 27. There are frequent rainstorms in most parts of the south of the Yangtze River. The rainfall in Jiangxi, Hunan, Anhui and other areas is more than normal 1 times, and more than 2 times in the north of Jiangxi. The second time was from July 4 to 25. Rainfall along the Yangtze River in the Three Gorges area, north-central Jiangxi, northwest Hunan and other areas is 50% to 2 times higher than normal. The third time was from the end of July to the end of August. The rainfall in the upper reaches of the Yangtze River, Hanshui River Basin, eastern Sichuan, Chongqing, southwestern Hubei and northwestern Hunan is 2 to 3 times more than normal. Affected by rainfall, the Yangtze River has been flooded for the second time since 1954.

Loss:

Crops were affected by the disaster 1.080.7 hectares, but the harvest was 728 1.000 hectares, and the total harvest was 25 1.5 million hectares; 1016.92 million people were affected, 70.947 million people were affected, 2 140 people died, 1522436 people were injured, and 10447 million people were transferred urgently; 3.5 million houses collapsed, 7.32 million houses were damaged, and 6.5438+0.757 million large livestock died; The direct economic loss was 654.38+045.09 billion yuan.

Measures:

(1) Scientifically and timely forecast rain, water and disaster situation, and provide basis for flood fighting and emergency rescue, resettlement of victims and government decision-making on flood fighting and disaster relief. 1in March, 1998, the meteorological science and technology department made a forecast of the possible 1954 catastrophic flood in the Yangtze River basin, which won time for early deployment of flood control and flood fighting. After entering the flood season, eight flood peaks of the Yangtze River were accurately predicted and monitored.

(2) rely on experts to formulate flood control plans and emergency plans to serve the leaders in making major decisions. Whether the Jingjiang River is diverted or not is related to the life and property safety of nearly 8 million people in Jianghan Plain. The accurate prediction and analysis by meteorologists and hydrologists provide an important scientific basis for the central government to make a correct decision not to divert floods. When Daqing Shengli Oilfield and Daqing City are facing great threats, water conservancy experts put forward the best scheme of "blocking, draining, neutralizing and protecting" in time through scientific research and demonstration, ensuring the safety of Daqing City and Shengli Oilfield.

(3) Use modern scientific and technological means to carry out emergency operations such as risk detection, gap interception and pipeline plugging. The Ministry of Science and Technology organizes the Chinese Academy of Sciences and other relevant departments and scientific and technological forces in disaster areas to track and monitor the disasters in Dongting Lake and Poyang Lake, the key flood control areas of the Yangtze River, and report new data every three hours for the national defense general decision. For the first time, the geological radar was used to diagnose the danger within 3 meters of the dam, and good results were achieved in combination with expert judgment. Using global positioning system (GPS) technology to accurately monitor the deformation and displacement of the levee; Underground pipeline detectors and underwater cameras are focused on the bottom of the dam. The technology of steel-wood earth-rock composite dam has played a key role in successfully plugging the breach of No.4-5 gate of Jiujiang levee. The Minle Gate in Hanchuan City was deformed and the flood rushed. After the dangerous situation, four sunken ships and more than 80 agricultural vehicles were thrown into it, and more than 2,000 cubic meters of stones failed to block the breach. At the critical moment, experts who had participated in the closure of the Three Gorges Project were dispatched urgently, and the Gezhouba closure technology was adopted to successfully eliminate the danger.

(4) Scientifically monitor the epidemic situation in disaster areas, and the work of disease prevention and epidemic prevention has been fruitful. More than a dozen related departments, such as the Ministry of Health, organized medical scientific and technological personnel to scientifically monitor the epidemic situation in disaster areas and study and formulate various means of disease prevention and control. 22,728 medical and epidemic prevention teams have been dispatched to the disaster-stricken areas, providing medical services to the disaster-stricken areas and flood-fighting teams for 6,865,438+10,000 person-times. With the support of medicine, manpower and material resources all over the country, no major epidemic has occurred in the disaster area.

1998 flood disaster

1998 The flood disaster is serious, with wide influence and long duration. Under the leadership of the Party and the government, the broad masses of soldiers and civilians fought bravely against floods, and the water conservancy projects built since the founding of New China have played a great role, greatly reducing the losses caused by disasters. Twenty-nine provinces (autonomous regions and municipalities directly under the Central Government) in China suffered from floods to varying degrees. According to statistics of various provinces, the affected area of farmland is 22.29 million hectares (334 million mu), the disaster-stricken area is 65.438+0378 million hectares (207 million mu), 46.5438+050 people died, 6.85 million houses collapsed, and the direct economic loss is 255.65438 billion yuan. Jiangxi, Hunan, Hubei, Heilongjiang, Inner Mongolia, Jilin and other provinces (regions) are the hardest hit areas.

1998 Changjiang flood is the same as 193 1 954, but the flooded area and the number of people killed by the disaster are far less than19 1954.

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