What are the hazards of windy weather?

Abstract: Gale weather is a weather phenomenon. In meteorology, winds of magnitude 8 or above are called gale. The occurrence of windy weather will cause serious harm to people's normal production and life, such as affecting people's travel, endangering the health of respiratory system, aggravating soil desertification and affecting planting. Among them, the most direct relationship with people is travel. It's windy and dusty, so driving needs the most attention. Next, let's take a look at driving attention in windy days. Hazards of windy days

1, the harm to agriculture

The damage of strong wind to crops includes mechanical damage and physiological damage. Mechanical damage refers to poor pollination, lodging, root cutting and grain dropping of branches, leaves, flowers and fruits of crops. Physiological injury refers to the imbalance of crop water metabolism, the increase of transpiration and the wilting of plants due to water loss.

Strong winds can also cause soil erosion and sand dunes to move, thus destroying farmland. Blind reclamation in arid areas, strong winds will lead to land desertification. The strong wind in early spring in the north often causes wind damage to trees, causing crown deviation and eccentricity. Strong winds can also spread pathogens, and high-altitude winds are meteorological conditions for the long-distance migration of pests such as armyworm, rice planthopper, rice leaf roller and migratory locust, resulting in the spread of pests and diseases.

2. Harm to animal husbandry

The strong wind makes the pasture dry up due to water loss, and the yield and quality will decrease. The physiological damage of strong wind to pasture is the same as that of strong wind to crops.

When the herds on the grassland encounter windy weather, the normal feeding will be affected; Strong winds for several days will reduce the overall physique of the herd and its ability to resist epidemics. In winter and spring, the monsoon is strong, and young and weak livestock often squeeze into a pile because of heat dissipation, and sometimes die because of extrusion.

3. Harm to the environment

Strong wind will aggravate the harm of other natural disasters (drought, thunderstorm, hail, salinization, desertification, etc.). ). For example, strong wind can denude soil, accelerate soil desertification, activate semi-fixed sand dunes, and move sand dunes forward, leading to accelerated desertification process; Thunderstorms are often accompanied by strong winds, which can reach 9~ 10 in an instant, and violent storms will cause disasters.

4, the harm to people's lives and property and other industries.

Strong winds sometimes cause direct or indirect casualties. Strong winds often blow down unstable buildings, cranes, billboards, communication power equipment, telephone poles, trees and so on. , causing property losses and casualties.

Matters needing attention in driving in windy days

1, when driving against the wind, pay attention to the sudden change of wind direction or the large curvature of the road, and the sudden decrease of wind resistance will suddenly increase the speed. When driving, pedestrians should be prevented from suddenly running across the road when the vehicle approaches to avoid the dust raised by the vehicle.

2. Turn on the small light in front and honk the horn frequently when turning in a windy and dusty day, so as to attract the attention of pedestrians and vehicles, move slowly and be ready to brake and stop at any time. When driving at night in windy days, you should use anti-glare low beam lights instead of high beam lights to avoid affecting your sight due to dazzling light curtains. When the sandstorm is particularly serious, the car should be parked on the windward side of the road, with the front of the car facing away from the sandstorm and the shutters half open to prevent fine sand particles from being sucked into the cylinder by the engine and accelerate the wear of parts.

3. Freight vehicles should tighten the canvas on the vehicle and fix the goods on the vehicle; When loading light and bulky materials, stop to avoid the storm, so as to avoid the vehicle being blown away by the storm and deviating from the normal driving route.