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High wind: It can be seriously harm to agricultural production and other economic construction.Our observatory make the wind 6 or more standard as released gale.The wind generally more than 5 may harm crops.Harm:Strong winds has its hazards on agriculture,fisheries,animal husbandry,transportation and basic construction.Gale damage to crops,including soil erosion,crop mechanical damage,physiological procees by obstacles and indirect impact.Now let me tell you some details about gale hazards.1,Building damaged or collapsed
All kinds of old house,sheds,temporary buildings,fences,billboards,easily blown down by strong winds and causing the casualties.On April 9,1992,11 cla gale makes Beijing station 8m tall giant billboards collapsed and killed 2 people,injured 15 people.So in windy days ,please don’t stay in the dangerous house and walk around billboards.2,Impact on the power supply system
The high winds will blown down telephone poles,even thousands of volts of high voltage tower may be overwhelming damage.3,Impact on traffic
Encountered strong winds on the highway,the faster the speed,the more likely out of control.So people traveling in high winds must have to pay attention to traffic safety.4,Impact on the atmospheric environment
In the windy,the ground dust can be blowed,it cause the air quality to down.Therefore we should promptly shut doors and windows.we must prevent the occurrence of respiratory diseases.5,Impact on crops
The strong winds will led the wheat to be harvested scattered on the ground.The next I will teach yours some distinguish knowledge of the scale of wind.0 cla:The chimney’s smoke is straight.cla:The chimney’s smoke is slightly tilted.cla:The face can feel the breeze.cla:Red flag can flutter.cla:The paper can floating in the air.cla: Water waves appeared in the lake.The flowing wind cla will bring us some bad things.cla:We can not hold up the umbrella.cla:We are walking very difficult.cla:The trees branches are blown down.cla:Roof tiles will be fly.cla:The tree will be blown down.and 12 winds rarely occur in the land.
