What are the reasons for the frequent disasters in recent years, and what are the warnings for manki

On one side, the new coronavirus has not been eradicated, and on the other side, locusts have begun to dance in the sky. In China, there is an old saying called "Misfortune does not go alone", and from this point of view, it seems that it has been perfectly confirmed in 2020. Many friends may find that the earth seems to have become less calm in recent years, including in recent times, and even ** seems to have increased.

Therefore, there is a view that perhaps all this is a warning from nature that we need to learn to live in peace with nature, otherwise human beings may not be able to live on the earth for a long time. Is that really the case? Let's take a look at how locusts, which have recently flown from Africa to Asia, appeared.

Scientists have found that the causes of locust plagues can be roughly divided into the following two types:

After the drought, locust plagues occur. This is not a folk rumor, but has been scientifically confirmed, and at the same time, it has been confirmed by many locust plagues in history. For example, during the Chongzhen period of the Ming Dynasty, there was an outbreak of a locust plague that took nearly four years to end, when many provinces were plagued by locusts, and before the locust outbreak, there was a long period of drought.

Why is drought closely related to locusts? Scientists have said that this is because the eggs of locusts are laid in the soil, and if the rainfall is too large, the eggs will be washed away, and it is difficult to raise larvae smoothly. However, when precipitation is scarce, the soil becomes compact, and the eggs are well encased.

When the drought eases, the vegetation grows again, the larvae come out, and the new plants become their food.

In recent years, due to the influence of human activities, the greenhouse effect has become more and more serious, and global warming has also caused the climate in many places to be abnormal.

For locusts, when the winter becomes no longer cold, it becomes the favorite environment for locusts, they can continue to lay eggs in the warm winter, and when spring comes, the large-scale eggs will become larvae, and then a new round of locust plagues will erupt.

And because of global warming, the drought situation is also worse than before, especially the grassland has begun to degrade, and locusts, as an insect that is extremely adaptable to arid climate, will increase the number of locusts when many organisms cannot survive because of the arid climate and begin to go extinct on a large scale. In particular, some birds that use locusts as food are not adapted to the arid climate in their living environment, so when the number of birds is getting smaller and smaller, it means that the natural enemies of locusts are getting fewer and fewer, and naturally, there are more and more locusts.

Man and nature are originally in harmony with each other, but because of the lack of foresight of human beings, wantonly destroying the earth's environment and exploiting the earth's resources, it will make global warming and disasters occur frequently, which is a solemn warning to human beings, so that people are in awe of nature, rather than arbitrarily destroying.

Recently, disasters have occurred frequently, but also because we have very serious damage to the environment around us, which has caused abnormal changes in our environment, and human beings should be vigilant and increase the protection of the environment.

Human beings make irrational use of nature, and the warning to human beings is that we must live in harmony with nature, protect nature, and protect our homeland.

First of all, it brings the loss of people's lives, the loss of property, the homelessness of many compatriots, the loss of many relatives and friends, and the trauma of a lifetime of psychological trauma. Therefore, we must be prepared to work together, give our love, and contribute with the rich, and with strength.

Natural disasters can generally be divided into geological disasters, such as landslides, mudslides, landslides, etc., and meteorological disasters, typhoons, heavy rains, blizzards, etc., and their derivative disasters, which are caused by these reasons, such as floods caused by heavy rains for a long time. Of course, it is also possible to separately mention a man-made disaster, such as fire, traffic accident, acid rain, etc.

Basic introduction. Natural variations on the earth, including natural variations induced by human activities, natural disasters are conceived in the earth's surface environment composed of the atmosphere, lithosphere, hydrosphere and biosphere. It happens all the time, and when this kind of mutation brings harm to human society, it constitutes a natural disaster. Because it has brought varying degrees of damage to human production and life, including the relationship between man and nature through the medium of labor, as well as the relationship between people related to it.

Disasters are all negative or destructive effects.

Major sudden natural disasters around the world include: drought, floods, typhoons, storm surges, frost damage, hailstorms, tsunamis, volcanoes, landslides, mudslides, forest fires, agricultural and forestry pests and diseases, cosmic radiation, red tides (rarely occurring, and the impact is small).

There are many types of natural disasters common in China's land space, mainly including floods and droughts, meteorological disasters such as typhoons, hailstorms, blizzards, sandstorms, volcanoes, geological disasters such as landslides, landslides and debris flows, marine disasters such as storm surges and tsunamis, forest and grassland fires and major biological disasters. Natural disasters are abnormal events in the evolution of the geographical environment, but they have become one of the most important natural factors hindering the development of human society.

Unreasonable mining and excavation of the foot of the slope will cause landslides;

Sulfide gas emissions from chemical plants can cause acid rain;

Improper logging will exacerbate sandstorms;

Over-exploitation of groundwater can lead to seawater intrusion and land subsidence;

The construction of large-scale reservoirs is easy to induce**.

China is a country with serious natural disasters, with frequent natural disasters such as landslides, mudslides, droughts, and floods. Relatively large natural disasters, especially strong ones, such as the Tangshan Da** on July 28, 1976 and the Wenchuan Da** on May 12, 2008, have caused huge economic losses and human resources**. Historically, the lower reaches of the Yellow River breached, and the losses caused were even more incalculable.

The spirit of resisting earthquakes condensed by the people in overcoming disasters and rebuilding their homes, and the spiritual core of unity, tenacity and courage to overcome all difficulties, are not only the precious spiritual wealth of the people of Tangshan, but also the common pursuit of all mankind.

Scientists around the world have conducted a lot of research, which has deepened mankind's understanding of the earth and made a big step forward in preventing disasters. In the practice of earthquake resistance, China gave birth to "advanced sociology", which laid a theoretical foundation for solving the increasingly severe disaster problems faced by the global urbanization process and provided a successful example of disaster prevention and mitigation.

In ancient and modern times, in China and abroad, every great natural disaster has been compensated by greater historical progress. The great ** has made the people pay a painful price, but it has brought valuable spiritual wealth to all mankind.

China has suffered many natural disasters, the most famous of which is "Tangshan Da**" and 12 years of Wenchuan**. "Tangshan Da**" and Wenchuan Da** brought devastating disasters to these two regions.

Wenchuan Da**2008 5 12, Tangshan Da**1976 7 28

**, mudslides, floods, droughts.

In mid-June 1998, there was a catastrophic flood.

The catastrophic flood that occurred in mid-June 1998 was mainly concentrated in the Yangtze River basin and the Songhua River basin in the north, causing a major flood disaster rarely seen in history. Flood disasters of varying degrees are in hand in 29 provinces, municipalities and autonomous regions across the country.

1. ** Number: 1,562 people, 100 million people affected by the disaster, and 270,000 rescue troops.

2. Disaster situation: 4.97 million houses collapsed, the affected area was 100 million mu, the disaster area was 100 million mu, and the direct economic loss was 166.6 billion yuan.

3. Rescue forces: 270,000 people from the People's Liberation Army and the People's Armed Police were dispatched, 80 million people participated in the flood fight, and the total mobilization force reached nearly 100 million people.

4. State allocation: billions, nearly 10 billion materials transferred from all over the country.

5. Donations: 3.5 billion yuan, equivalent to 3.7 billion yuan.

In mid-January 2008, the southern part of the country was hit by ice and snow.

From mid-January to mid-February 2008, the south suffered the largest ice and snow disaster in history, causing severe damage to power and transportation facilities, and the disaster affected 21 provinces and autonomous regions.

1. Fatalities: 129 people, more than 4 million stranded passengers.

2. Rescue force: 10,000 people.

3. Disaster situation: 100 million mu of crops were affected, 10,000 houses collapsed, and direct economic losses of 100 million yuan.

4. Invest in strength: Outside the People's Liberation Army, 7.76 million people from all over the country participated in the rescue.

5. State allocation: 100 million yuan.

6. Donations and materials: 100 million yuan.

May 12, 2008 14:28 sec.

Latitude: Longitude:

Depth: 14km

Magnitude: Richter scale, moment magnitude.

Maximum intensity: 11 degrees.

Epicenter location: Yingxiu Town, Wenchuan County, Sichuan Province.

It is 21km (267°) west of Dujiangyan City and 48km (327°) northwest of Chongzhou City

It is 48 km (346°) northwest of Dayi County and 75 km (302°) northwest of Chengdu

**Statistics. Summary of the whole country** (as of 12 o'clock on October 8, 2008).

Killed: 69,229.

Injured: 374643 people.

Missing: 17,923 people.

Economic loss. as of 4 September 2008).

The direct economic loss caused by Wenchuan ** this time was 845.1 billion yuan. Sichuan was the most serious, accounting for the total losses, Gansu accounted for the total losses, and Shaanxi accounted for the total losses. The National Bureau of Statistics divides the loss indicators into three categories, the first category is the problem of personnel, the second category is the problem of property loss, and the third category is the problem of damage to the natural environment.

Among the property losses, the loss of houses is very large, and the losses of private houses and urban residents' houses account for the total losses. Including the loss of schools, hospitals and other non-residential buildings, the total loss. In addition, there are also the loss of infrastructure, roads, bridges and other urban infrastructure, accounting for the total loss, these three categories are relatively large losses, more than 70% of the losses are caused by these three aspects.

Natural disasters can cause huge economic losses and human beings to human beings**. There is much evidence that irrational human activities can induce or exacerbate natural disasters. For example, if people cut down forests in mountainous areas, landslides and debris flow disasters may be induced.

Therefore, in the face of natural disasters, human beings need to realize that these natural disasters are likely to be nature's prompts to human beings, and hope that we will reflect on our own behavior, adjust our own economic development model, coordinate the relationship between human activities and the geographical environment, treat nature well, and achieve sustainable development.