Windy and dusty weather has reappeared in Northwest China, North China and other places, why is ther

The frequent occurrence of sand and dust is mainly related to environmental and ecological damage.

1. The weather is becoming more and more extreme now.

The weather in these years has always broken the bottom line and actively melted glaciers. Temperatures of up to 40 in summer and warm in winter are all due to the extreme weather.

In the morning, the sky is still clear, and in the afternoon it becomes a storm, and the environment is becoming more and more unpredictable, which creates a lot of conditions for the dust weather, and the dust weather needs to have two conditions, the first condition is that the desertification of the area is very serious, and the second condition is that there is a strong air flow, if the wind turbine reaches level 7 or 8 or above, it is easy to have dust weather, or even dust storms.

2. The phenomenon of indiscriminate felling is too serious, and animal husbandry is too developed in many places.

Take the sandstorm in Mongolia before, for example, the main reason is that Mongolia's animal husbandry is relatively developed, and many cattle and sheep graze vegetation in herds, resulting in serious local desertification.

3. Typhoons have become more and more frequent in recent years.

One of the conditions for the occurrence of sand and dust weather is to have a strong air flow, if the desertification of the area is too serious, there is no need for a strong air flow to cause sand and dust weather ratio, such as China's Loess Plateau, all year round is a piece of dust, many families if they do not close the window for a day, there will be a layer of ash in the house.

Dust weather is a natural weather, so don't worry too much.

Dust weather is the same as a tornado, both belong to a kind of weather in nature, that is to say, no matter how we protect the environment, dust weather may occur, but we can reduce the frequency of its occurrence through our own efforts, usually in daily life to plant more trees and grass, can not destroy vegetation, try not to pollute the air, pollute the environment, the consequences of polluting the environment, is to make the weather become extreme, once the weather is extreme, it is easy to cause natural meteorological disasters, For example, tornadoes, tsunamis, typhoons, etc.

We must also do a good job of self-protection in dusty weather.

In recent years, sand and dust weather has become more and more frequent, we must not only understand the decision-making of sand and dust weather, but also know how to protect ourselves in the event of sand and dust weather, try not to go out in case of sand and dust weather, if you have to go out, you must wear a hat, wear goggles, wear two layers of masks, and avoid sand from entering the eyes or nasal cavity, <>

In addition, do not drive, the visibility in dust weather is very low, and it is easy to cause traffic accidents.

Because of the invasion of cold air, sandstorm weather occurs in the sandstorm of windy weather carriers, and we must pay attention to precautions.

The main reason is that the environmental protection situation in Northwest China and North China is not particularly good, so there are more sandstorms in these areas.

This is because of the severity of the sandstorms in Mongolia this year, coupled with the low forest vegetation coverage, and the sand and dust are also relatively serious.

The main reason is that it is affected by extreme weather, so it causes sand and dust to appear frequently.

The main reason is that this year's wind is relatively strong, coupled with the pollution of the environment in recent years, and a large number of trees have been cut down, and because of this, it has led to the destruction of the forest and caused a very serious sandstorm.

Because the earth's bearing capacity is limited now, and the environment in many places has been seriously damaged, there have been great changes in temperature and environment.

Because the destruction of trees is causing desertification to approach people and constantly endanger people, which is at people's own fault.

"The smell of spring is mixed with the smell of earth. "Since the beginning of this year, the north of our country has encountered five dust weather processes. According to the forecast, from tomorrow (March 26) to the 28th, there will be a large-scale sand and dust weather process in the north, and Beijing and other northern China regions will be blowing sand or floating dust this weekend, and there will be local sandstorms.

Why is there so much dust this year? China Weather Network analysts answer in detail. The north will welcome a new round of sand and dust weather Beijing's air quality deteriorates on Sunday Today, affected by the eastward movement of the upper-air trough and the eastward movement of weak cold air to the south, the sand and dust weather mainly appeared in the northwest region.

Starting tomorrow, under the influence of the eastward movement of the Mongolian cyclone, there will be a strong sand and dust weather process in northern China. It is expected that tomorrow, there will be sand or floating dust weather in central Inner Mongolia and northern Hebei. This weekend, the scope of sand and dust weather will expand, and there will be sand or floating dust weather in Gansu, Inner Mongolia, Ningxia, Shaanxi, Shanxi, Hebei, Beijing, Tianjin, Liaoning, Shandong and other places, and there will be local sand and dust storms.

Because of the serious global climate change in recent years and the pollution of the environment, in fact, these natural disasters are the earth's punishment for human beings.

Beijing sand and dust gale warnings were issuedThe impact of this sand and dust weather is not small**The forecast of the meteorological observatory shows that from yesterday night to today, there will be sand or floating dust weather in the southern Xinjiang basin, central and western Gansu, central and western Inner Mongolia, North China and other places, among them, there are local sandstorms in the central and western parts of Inner Mongolia; Central North China, northern Huanghuai and other places are expected to be affected by sand and dust transport this afternoon, PM10 concentrations will increase in some areas, and air quality will reach light to moderate pollution.

Recently, strong winds have been frequent, and the air has dried and dry, and the meteorological department reminds the public to pay attention to timely hydration and fire safety.

The meteorological department predicts that in the next nine days, the city's temperature fluctuations will not fluctuate much, the highest temperature during the day is between 26 and 29, the lowest temperature at night is between 12 and 17, and the temperature difference between day and night is large.

Today and tomorrow will face a northerly wind

Yesterday we entered the seventh of the 24 solar terms - the beginning of summer. After entering the beginning of the summer solar term, the days are getting longer and the nights are getting shorter, the temperature is significantly higher, and the thunderstorms are gradually increasing.

However, the beginning of summer is only a forecast of the coming of summer, it does not mean that it has already entered summer, meteorology has strict standards for the beginning of summer, when the average daily temperature of a place is stable above 22, it can be determined that summer begins.

Yesterday, the weather in Beijing was sunny, and in the afternoon, there was a southerly wind of about level 4 in most areas, with strong gusts, and the maximum temperature during the day rose to 27, which is already a bit of a summer feeling. However, the cold air is about to come to "stir up the scene".

Under the influence of a new wave of cold air, today and tomorrow, Beijing will once again usher in a northerly wind with gusts of wind strength.

The Municipal Meteorological Observatory upgraded and issued a yellow warning signal for high winds at 20 o'clock yesterday: it is expected that from 11 o'clock to 19 o'clock on May 6, there will be about 5 northerly winds and gusts in the city; From the night of the 6th to the day of the 7th, there will be a northerly wind with gusts of about 7, please take precautions.

The above content refers to the Xinhuanet client Beijing issued a strong wind and dust warning, and citizens should pay attention to precautions when traveling.

In recent years, the world has caused many natural disasters due to environmental problems, such as the 2010 vaccine incident and the Shanxi coal mine flooding incident. <>

The "mudslide" in Zhouqu was caused by "the unscrupulous felling of trees after the big **." Sewage was discharged from a paper mill in Wuding District, Guiyang City, resulting in the destruction of water resources. In life, people unknowingly destroy many bad environments, and people don't care about it, and sooner or later our earth will become lifeless.

Causes of sand and dust weather:

1.Overgrazing.

In some countries where grazing is lived, the land is seriously degraded due to overgrazing, which leads to the loss of aquatic weeds and desertification.

2.Excessive felling of trees.

In order to reclaim the land, human beings cut down a large number of trees and destroy grasslands to make fields, but unreasonable cutting down of trees and farming will also cause serious soil erosion and cause desertification.

3.The population is growing too fast.

Population growth is too fast and land areas are getting smaller and smaller, leading to overuse of land, which can lead to desertification.

4.Climatic reasons.

The northern climate is dominated by the temperate monsoon, with warm and rainy summers, cold and dry winters, and dusty weather in spring and winter.

This year, the frequent occurrence of sand and dust weather in the north is mostly due to the worsening of the bad environment, which makes this year more sand and dust weather than in previous years.

In order to prevent desertification, we should plant more trees, so that trees and flowers can reappear in those areas where desertification is serious. For example, in the Mu Us Desert in Shaanxi, after 60 years of continuous tree planting by tree planters, this desert has no desert figure, and then flowers and trees appear. This spirit is what we should learn, and I believe that as long as we persevere, sooner or later we will fill the world with flowers and trees, and give the earth a green world.

It should be the deterioration of the environment, because soil erosion has been very serious in recent years, so there are sandstorms in many places.

Personally, I think it must be the cause of environmental degradation, after all, I think the climate is becoming more and more extreme, and there are related situations in many areas.

I think it's the deterioration of the environment, because the bad environment causes soil erosion, and when the wind blows, the mud and sand without vegetation tend to fly all over the sky.

For a period of time, sandstorms in northern China can be said to be very common. For the serious desertification in the north of our country, due to indiscriminate cutting and other reasons, soil erosion is also quite serious, because of the serious soil erosion during this time, so it has caused the frequent occurrence of sandstorms in China for a considerable period of time. China has seen the harm of this phenomenon to our country, and has also realized that China's ecological environment is facing serious problems, and relevant departments have taken active environmental protection measures.

Later, with the completion and expansion of the Three-North Shelterbelt, the construction of relevant protected areas, and the continuous improvement of people's awareness of environmental protection, and some other environmental protection measures are being carried out. The phenomenon of sandstorms in northern China is no longer so frequent, and the existence of sandstorms in North China is almost invisible.

However, after many years, the sandstorm struck again, this time sweeping almost all parts of North China, Northwest and Northeast China and Inner Mongolia. And the visibility of this sandstorm is very low, the visibility is less than 500 meters. The area of the sandstorm has reached 10,000 square kilometers, and it can be said that this sandstorm is the strongest sandstorm in China in 10 years.

How are sandstorms formed? Let's take a look.

1. Causes of sandstorms:

What to say about this sandstorm, the main origin is from Mongolia, it is the cyclone in Mongolia that has developed to a certain extent, it can be said that the cyclone has been quite strong, and then these sandstorms with the cold air brought by the Mongolian cyclone, from the east of Mongolia began to go south, if Mongolia develops to the south is the north of our country, and at this time when the temperature in the northern cities of our country is high, and the cold air brought by Mongolia to the south is encountered, then this condition is terrible, These conditions are just right for the formation of high winds and sandstorms. Moreover, it is now the alternation of winter and spring in the north of our country, the rainfall has not increased and is relatively scarce, and the soil moisture is not so high, which is more conducive to the formation of sandstorm weather.

The second reason is that although the ecological environment in northern China has been improved to a certain extent, there is still a large amount of desertified land in the north, and the vegetation is not completely covered, so the sand is not fixed.

2. Summary:

Although the sandstorm covers a wide area, involving North China, Northeast and Western China, Northwest China, and Inner Mongolia, it will not form a normal situation. So people don't have to worry either.

First, it is affected by the underlying surface conditions, and the thermal conditions are good. In the early stage, the temperature in Mongolia and the northwest of China was obviously high, the precipitation was less, the surface gradually thawed, and the dust particles were easy to sand. Second, under the influence of the strong Mongolian cyclone, the dynamic conditions are sufficient.

Wind gusts of 9-11 have occurred in northern Xinjiang, central and western Gansu, Inner Mongolia, and even northern North China, which provides very good dynamic conditions for the occurrence of this sand and dust weather.

This time, the sandstorm came from Mongolia, and the recent rainfall in the north was too little and the weather was very dry, so it was very badly affected.

In spring, the weather is dry and windy, the temperature in the northwest of China is bright and high, the precipitation is less, the surface is slowly thawed, the ground is easy to sand, and the aerodynamic conditions are sufficient under the influence of the strong Mongolian cyclone.

It is because Mongolia has been affected by very serious sandstorms, and many areas in northern China have also been affected to varying degrees.

Personally, I think it's just one of the main causes of sandstorms, which is caused by the extreme climate and low rainfall in Mongolia during this time.