What are the meteorological disasters in China?

According to China's meteorological regulations, heavy rainfall with a precipitation of more than 50 mm in 24 hours is called "rainstorm". Due to the different characteristics of precipitation and topography, the standards of rainstorm and flood are different in different places.

Rainstorm is a kind of disastrous weather, which often causes floods and serious soil erosion, leading to major economic losses, such as engineering accidents, dike breaches and crop flooding. Especially for some low-lying and blocked areas, rainwater can't be discharged quickly, which leads to water accumulation in farmland and supersaturation of soil moisture, which will lead to more geological disasters.

2. Drought

Drought refers to a climatic phenomenon that the total amount of fresh water is not enough to meet people's survival and economic development, and it is generally a long-term phenomenon. Drought has always been the main natural disaster facing mankind. Even in today's advanced science and technology, its disastrous consequences still abound.

It is worth noting that with the economic development and population expansion, the shortage of water resources is becoming more and more serious, which directly leads to the expansion of drought area and the aggravation of drought. The drought trend has become a global concern.

3. Hail

Except for Guangdong, Hunan, Hubei, Fujian, Jiangxi and other provinces, China suffers from hail disasters to varying degrees every year. Especially in the mountainous and hilly areas in the north, the terrain is complex, the weather is changeable and there are many hail, which is very harmful to agriculture.

Heavy hail destroyed crops and houses, injured people and killed livestock. Extraordinary hail is bigger than grapefruit, which will kill people, destroy a large area of farmland and trees, and destroy buildings and vehicles. It has powerful lethality. Hail disaster is one of the most serious disasters in China.

4. Blizzard

According to the formation conditions, distribution and manifestations of snow disasters in China, snow disasters can be divided into three types: avalanche, wind-blown snow disasters and snow disasters in pastoral areas. Snowstorm, as one of the major natural disasters in China, occurs every year, seriously threatening people's lives, property and normal life order.

Snow mountain is prone to avalanche disaster, and wind blowing snow will block the normal passage of highway traffic. Snow disaster in pastoral areas is a natural disaster that livestock can't eat normally due to thick snow, long-term maintenance and burying pasture, which leads to the weight loss and death of a large number of livestock in pastoral areas.

5. Debris flow

Debris flow refers to a special torrent containing a lot of sediment and stones caused by heavy rain, blizzard or other natural disasters in mountainous areas or other areas with deep valleys and steep terrain. Debris flow has the characteristics of strong suddenness, fast velocity, large flow, large material capacity and strong destructive power. Debris flow often destroys roads, railways and other transportation facilities and even villages and towns, causing huge losses.