Burn!

！

The audience's eyes widened and they exclaimed in unison.

Can soil burn too?

"Of course, even the combustion effect is very good, you can simply understand it as earth-like charcoal, and it has another name, which is grass peat, peat, which is the least coalified coal."

This metaphor made everyone instantly understand the burning power of peat soil.

It turned out to be coal!

The charcoal in his hand ignited the spark, Bi Fang blew slowly, and the small flames quickly jumped on the velvet, and when he saw this, he did not rush to put in the peat, but grabbed a handful of loose peat soil.

"When the organic matter content in the clay is more than 10% but less than 60%, it is called peat soil, and only more than 60% can become peat, and the calorific value of this soil is mostly 9.50~15.0 megajoules per kilogram, which is very easy to burn."

"This is a kind of soil formed by the accumulation of plant remains that have not fully decomposed in a humid and oxygen-deficient environment, the appearance is usually dark gray or black, there is a fishy smell, the plant structure that is not completely decomposed can be seen, the soaked body is swollen and easy to disintegrate, and there are plant residues floating in the water, and the phenomenon of drying shrinkage is obvious."

The audience got closer, and sure enough, they found tissue similar to the roots of plants in the soil.

"In addition to the characteristics of peat soil, peat also has the properties of loose structure, very light soil, and dull and dull."

With so many properties, it is not difficult to identify the peat soil, coupled with the surging fishy smell, Bi Fang can recognize it at a glance.

[However, does this thing exist in the Arctic?] 】

[There are not many plants in the Arctic, but there are so many plant remains? 】

The audience was a little strange, because listening to Bi Fang's meaning, this thing should be in the rainforest or something, where are there countless plant remains.

"So you didn't hear the preconditions at all, did you?" Bi Fang smiled, "It's completely different from what you guessed, tropical rainforests or something, microorganisms are too developed, and there is basically no way to leave plant remains, so 70% of the world's peat bogs are actually located in the Arctic zone, most of them are in high latitudes, and there are more peat soils in low latitudes, I think about it......"

"Oh, the Indonesian forests are full of peat bogs."

"But we have to be careful when we use peat, and we have to be very protective. Because peat soil burns easily and has properties similar to coal, you can imagine yourself making a fire on a coal pile. ”

[, is it so scary? 】

[To die, to die]

[The old man is really bold]

The audience gasped, which was also too scary.

"Haha, it's actually not that exaggerated, after all, the degree of coalification is very low, and it has to be roasted and dried, and we are all surrounded by ice and snow, so it's okay to be careful, I just want you to understand that it does have a certain degree of danger."

As he said, Bi Fang did not choose to light a fire in the remaining mud pit, but put a large amount of snow on the side, and then filled it with ordinary frozen soil, made a concave, and threw peat soil and flames into it, and it didn't take long for the flames to burst into flames, emitting amazing heat, and warming the hole at once.

Taking off his coat, Bi Fang looked up at the musk ox above his head, and felt that this seemed to be an alternative smoke, but the smoke was a little big.

"Nope."

Bi Fang picked up the shovel and dug to the side, he had to shift the fire, he didn't want his musk meat to taste bad and smelly.

"In many places, forest fires in the summer are likely to spread to forested peat bogs. Not only do they increase the fire, but they are also potential climate bombs. ”

"When peat bogs burn, they release carbon dioxide that has been stored for several geological epochs. When the soil starts burning, it releases choking smoke, a process that can only be terminated with the help of a bulldozer. Fires can last for months or years, so the amount of peat lost is enormous. ”

"The amount of carbon in the atmosphere is 7,500 tons, and there may be 250 billion ~ 450 billion tons of carbon in peat bogs in the Arctic zone, and once fully released, it will increase the carbon content in the atmosphere by 50%."

Bi Fang made an alarmist conclusion.

"I don't know if you still remember the huge wildfires that broke out in the jungles of Australia and California the year before last, and the earth lost hundreds of millions of wild animals and many species became endangered.

"Wildfire smoke from the ground in the Arctic created huge plumes of smoke in the stratosphere that could be clearly seen on satellites."

"It wasn't until the next day, months of cold weather, that all the bushfires on the surface of the Arctic were extinguished, but the fires were still burning underground."

"Even in the vicinity of the village of Saidi, almost 400 kilometers northeast of Yakutsk in the Arctic, underground fires continued to burn in temperatures of -50 degrees Celsius, burning from Udalnik to Seydi, and all vital resources were burned out."

"The Great Age of Genes"

The audience was dumbfounded, burned for a year?

That's an exaggeration, isn't it?

"Peat fires are different from the bushfires you usually see, because they are hidden and burn quietly, so they are extremely difficult to extinguish, even if there is heavy snow on the ground."

"It's burning under the ground, there's no flame, and there's only a small amount of smoke, so it's hard to spot unless the satellite detects a temperature anomaly."

"In particular, this kind of fire can burn all the way to the upper part of the mineral layer and groundwater, although the spread rate is slow, only 4-5 meters per hour, and it can burn tens of meters in a day and night, but it is not easy to extinguish, and can burn for days, months or longer."

"Underground fires that occur in autumn can usually survive the winter and continue to burn until the spring of the following year, so they are also called overwintering fires."

Once again, the audience was amazed by the power of nature, and for the first time they had heard of a fire that could burn underground.

[Anyway, what will happen if this underground fire spreads all the way to coal]

[Didn't that blow up directly? ] 】

Bi Fang began to dig a hole in the ground amid the audience's discussions, preparing to build a greenhouse next to it, and also release the smoke as much as possible.

With the efforts of one person and three dogs, the progress was fast, and it was completely dug out in an afternoon.

Bi Fang also immediately moved the flames, although the possibility of artificially igniting the charcoal fire layer is extremely low, and there is still a lot of snow cover here, which will melt into water to extinguish the flames when the temperature is high, but it is better to be careful.

As a public figure, Bi Fang also has to convey the correct knowledge and methods to the audience as much as possible.

With flames and food, Bi Fang and the three fools squatted for three days in a row, and the blizzards and sandstorms in the outside world finally showed signs of stopping.

And the eternal night is less than five days away.