A mountain fire broke out in Banan District, Chongqing. What was the cause of the fire?
The specific cause of the fire has not been officially announced to the public, but I guess it is most likely caused by spontaneous combustion in the forest. After all, there have been several similar cases recently.
On August 21, authoritative media reported that a fire broke out in the forest under the jurisdiction of Xinyu Village, Jieshi Town, Banan District, Chongqing City. This is not the first major fire in Chongqing this year. Before this, fires occurred in Jiangjin, Tongliang, Dazu and other places in Chongqing. Most fires occur due to spontaneous combustion caused by excessive temperatures.
In this regard, Bai Ye, a professor at the Forest Fire Research Center of the China Fire and Rescue Academy, said, "There are many causes of forest fires, mainly man-made fire sources and natural fire sources. Spontaneous forest fires are also the main cause of forest fires."
Since the beginning of this year, high temperatures have occurred across the country, and Chongqing has been "the first to bear the brunt" of high temperature weather. Continuous high temperatures and no rain allow combustible objects in the forest to reach their ignition point and spontaneous combustion occur.
Bai Ye said, "Spontaneous combustion caused by internal self-heating includes spontaneous combustion of peat fermentation, spontaneous combustion of mineral strata, etc.; spontaneous combustion caused by external environment includes spontaneous combustion caused by concentrating light and vegetation itself. Specifically, spontaneous combustion of peat fermentation is It refers to the continuous accumulation of plant residues, litter, and ground cover organic matter produced by natural replacement, and is transformed into a peat layer under certain circumstances. The peat layer spontaneously ignites under long-term high temperatures.
Distribution in forest areas. Coal mines (coal gangue), white phosphorus mines, etc. are also one of the conditions that cause forest spontaneous combustion. During the coal mining and processing process, a large amount of coal gangue is produced and discharged, which is widely distributed in some key forest areas in Chongqing. When combustible materials are present, , there is sufficient oxygen, and when the heat storage reaches the ignition point, coal gangue is extremely easy to burn.”
After the fire, some people on the Internet suggested using helicopters to put out the fire, but in fact this idea is not practical. . First of all, the amount of water that the helicopter can carry is limited, and there is a delay in the round trip; secondly, the helicopter cannot spread water too close to the fire point, otherwise the filtration system will be easily damaged by the thick smoke, which may lead to a serious crash.
Although they are all fire accidents, the losses caused by the fire in Banan District, Chongqing will be more serious. Because the fire in Banan District happened suddenly, the relevant departments may not have been fully prepared to respond. Moreover, Banan District is relatively far from Chongqing city, only 7 kilometers away, and the building facilities are more densely packed; secondly, Banan District has a developed tourism industry, and sudden wildfires will cause losses to some tourist attractions; at the same time, Banan District There are many crops and abundant natural resources nearby. If the wildfire cannot be extinguished in time, it will cause heavy economic losses.
Perhaps this fire was caused by spontaneous forest combustion, but it also reminds us that we must pay attention to the careful handling of "fire sources" (especially cigarette butts) in our daily lives. Never cause serious losses to your family or place because of your own indifference.