What are the characteristics of forest fires, and what are the characteristics of forest fires?

China is a country with few forests, with a forest coverage rate, but forest fires are more serious. On average, more than 16,000 forest fires occur every year, and about 106 hm2 of forests are burned, accounting for about one of the country's forest area. It has the following characteristics

Forest fire losses are serious, and large or extraordinarily large forest fires often occur in our countryThe average area of each forest fire is in the tens to hundreds of hectares. In the spring of 1987, a huge forest fire in the northern forest area of the Daxing'an Mountains burned an area of (133 104) hm2, burning down 3 forestry bureau sites and 9 forest farms, leaving more than 50,000 people homeless and suffering heavy losses, shocking China and foreign countries.

Large-scale forest fires mostly occur in remote mountainous areas and forest areas, and the largest number of forest fires occur in Yunnan ProvinceSometimes, it is more than 50 of the total number of forest fires in China. However, the forest area with the largest burned area is the Daxinganling forest area, and its burned area sometimes exceeds more than 50 of the total burned area in China. Forest fires are more serious in Heilongjiang, Inner Mongolia, Yunnan, Guangxi, Fujian, Guangdong, Sichuan, Guizhou and other places.

Forest fires fluctuate greatly, and in the 50s of the 20th century, forest fires were numerous and large；In the 60s, the number and area of forest fires decreased accordingly; In the 70s, the number and area of forest fires increased significantly; In the 80s, it fell accordingly.

Forest fire refers to the forest fire behavior that is out of human control, spreads and expands freely in the forest land, and brings certain harm and loss to the forest, forest ecosystem and human beings. Forest fire is a kind of natural disaster that is sudden, destructive, and difficult to deal with and rescue.

Forest fire refers to a natural disaster in which the fire is out of human control, spreads and expands freely in the forest land, and brings certain harm and loss to the forest, forest ecosystem and human beings. On average, more than 200,000 forest fires occur every year in the world, and more than 1 of the world's total forest area is burned.

Forest fires are called forest fires that lose human control, spread and expand freely in the forest land, and bring certain harm and loss to the forest, forest ecosystem and human beings. In a narrow sense:

Forest fire is a kind of natural disaster that is sudden, destructive, and difficult to deal with and rescue. Forest fire prevention is an important part of China's disaster prevention and mitigation work, an important part of the construction of the national public emergency response system, an important guarantee for social stability and the people's living and working in peace and contentment, the foundation and premise for accelerating forestry development and strengthening ecological construction, and is related to forest resources and ecological security, the safety of people's lives and property, and the overall situation of reform, development and stability. To put it simply, forest fire prevention is to prevent the occurrence and spread of forest fires, that is, to prevent and extinguish forest fires.

To prevent the occurrence of forest fires, it is necessary to understand the law of forest fires, adopt methods that combine administration, law, and economy, and use scientific and technological means to minimize the number of fires. To fight forest fires, it is necessary to understand the laws of forest fire burning, establish a strict emergency response mechanism and a strong command system, organize well-trained fire-fighting teams, and use effective and scientific methods and advanced fire-fighting equipment to fight fires in a timely manner so as to minimize fire losses.

After the occurrence of forest fires, forest fires can be divided into general forest fires, large forest fires, major forest fires and particularly major forest fires according to whether the forest trees have been damaged and the size of the burned area. (1) General forest fires:

The area of the damaged forest is less than 1 hectare or other forest land**, or there are more than 1 and 3 deaths, or 1 to 10 people are seriously injured;

2) Relatively large forest fires: the area of the forest affected is between 1 hectare and 100 hectares, or 3 to 10 people are killed, or 10 to 50 people are seriously injured;

3) Major forest fires: the area of the affected forest is between 100 hectares and 1,000 hectares, or the death of 10 to 30 people, or the serious injury of 50 to 100 people;

4) Particularly serious forest fires: the forest area affected is more than 1,000 hectares, or more than 30 people are killed, or more than 100 people are seriously injured.

1. Fire source management is difficult to control, and residents in forest areas with weak awareness of fire prevention are engaged in farming, burning wasteland, burning waste, burning paper and incense, heating and lighting in the forest, littering cigarette butts and other bad fire behaviors can cause forest fires. 2. Natural factors are difficult to foreseeIn recent years, with the process of industrialization, carbon emissions have increased, making the climate worse, continuous drought or high temperature, and high fire danger weather has become more and more frequent. The main reasons for the frequent occurrence of forest fires are the accumulation of dead branches and leaves, and the increase of combustibles.

3. It is difficult to foresee forest fires in forest areas, such as complex topography and landform, a wide variety of tree species and diversity of growth structures, so forest fires in forest areas are generally sudden. With the characteristics of wide area, rapid spread, and poor disposal, forest fires usually cannot be found in time, which brings great difficulties to the prevention of forest fires. 4. Fire prevention propaganda is not in place, responsibility is not in place For a long time, many places have neglected fire prevention publicity, and the responsibility has not been implemented for a long time.

Extended information: The hazards of forest fires: 1. Significant reduction in oxygen Oxygen is "transformed" by photosynthesis by trees, without which there is no oxygen, and human beings cannot survive.

When a forest is destroyed by a fire, it is equivalent to losing a factory that can supply oxygen for a long time, and the burning of the fire also consumes oxygen. 2. Significantly increase the toxic gas, the thick smoke will choke people, and in serious cases, it will suffocate people. And with so many trees burning together, the results can be imagined.

Such thick smoke, if left unchecked, will seriously pollute the atmosphere and cause the lives of people with weak resistance. 3. Contributing to soil erosion Soil erosion Causes 1.6 billion tonnes of sediment to disappear in the Yellow River Basin every year because of excessive destruction of vegetation by humans. The root system of the plant holds the soil together, and once the plant is lost, the soil loses its support and can easily be washed away by storms.

4. It is easy to hurt people in the forest, a sudden fire swept through the mountains and forests, and people's lives will be threatened.

Article 114 of the Criminal Law: Whoever endangers public safety by setting fires, breaching water, or disseminating substances such as poisonous or radioactive purification wheels, pathogens of infectious diseases, or using other dangerous methods, but has not yet caused serious consequences, is to be sentenced to fixed-term imprisonment of not less than three years but not more than ten years. Article 115 Whoever causes serious injury or death to a person or causes serious damage to public or private property by setting fire, breaching water, or disseminating poisonous, radioactive, or infectious disease pathogens, or by other dangerous means, shall be sentenced to fixed-term imprisonment of not less than 10 years, life imprisonment, or death. Whoever negligently commits the crime in the preceding paragraph is to be sentenced to fixed-term imprisonment of not less than three years but not more than seven years; where the circumstances are more minor, a sentence of three years imprisonment or short-term detention is to be given.