Cold wave and strong cold air usually bring strong winds, and cooling weather is the main meteorological disaster in winter half a year in China. Cold wave and strong wind are the enemy of marine fishery production; Sandstorms, sandstorms and snowstorms often occur in northwest China, which have caused serious harm to animal husbandry, agriculture and transportation. In the cold season, strong winds often aggravate the freezing injury. As the saying goes, "the weather is cold and cold" refers to cold waves and strong winds. Strong cooling and severe cold can freeze the eggs of overwintering bacteria and purify the air, which is beneficial, but it also often causes freezing damage to some crops, fruit trees and vegetables. The sudden drop in temperature can easily lead to cerebral hemorrhage and recurrence of heart disease in the elderly. For example, at the end of 1987+ 165438 10, a cold wave broke out, and there was strong wind and cooling weather from north to south in China, and the daily average process cooling in most areas reached 10-20? C, local areas are accompanied by northerly winds of grades 5-6 and 8-9. Rain and snow weather also occurred, and wheat and rape in Jiangsu, Anhui, Hubei, Shandong and other provinces suffered from freezing damage. According to reports, 50 million mu of wheat and rape in Jiangsu Province suffered from different degrees of freezing injury; In Anhui province, all direct-seeded rapeseed in some areas froze to death. Vegetables such as Chinese cabbage in Guanzhong, Hebei, Jiangsu and other places were severely frozen; Subtropical crops such as vegetables, bananas and pineapples in Guangdong and Guangxi also suffered from different degrees of freezing injury. The cold wave brings rain, snow and freezing weather, which has a great impact on traffic. Many railway stations in Harbin, Shenyang, Beijing, Urumqi and other places were frozen, tracks were buried by snow, communication signals failed, and train operation was blocked. After the rain and snow, the road surface freezes and slips, which makes the traffic accidents increase obviously. Preventive measures:: 1. Close the doors and windows and fix the outdoor structure. 2. Residents should pay attention to adding clothes to keep warm, especially for the elderly and infirm patients. 3. Take measures to keep warm and prevent slipping when going out. 4. Drivers should take anti-skid measures, pay attention to road conditions, obey orders and drive slowly. Herdsmen should drive wild animals into sheds to feed them. 6. Ships should be sheltered from the wind, and outdoor workers such as high altitude and water should stop working. People in dangerous houses should be evacuated quickly, especially in the case of snowstorm. 8. Beware of gas poisoning, especially for residents who use coal stoves for heating. 9. If you are trapped by a snowstorm, call for help as soon as possible. How should the department defend against the cold wave?
1. The public utilities start the defense work plan according to the situation. 2. The transportation department should prepare for road snow melting and ice melting. In case of serious ice and snow on the road, road traffic can be closed. 3. Agriculture should actively take anti-freezing measures. In the south, tropical and subtropical fruit trees should take anti-freezing measures. 4. Pastoral areas should prepare food and grass, and do a good job in cold and wind prevention of livestock. What if you get frostbite?
1. Leave the low-temperature place and frozen items quickly and transfer the patient indoors. 2. If clothes are frozen with human body, they should be melted with warm water first, and then take off clothes gently. 3. Keep the frostbite area clean and apply frostbite cream. Remember not to soak frostbitten parts in hot water or bake them with fire. 4. Cover with clothes and blankets to keep warm. 5. Go to the hospital for treatment as soon as possible.