Chapter 297

Tell the truth.

Sleeping in the mountains in winter is really a difficult challenge.

Not to mention that the environment of Qingcheng Mountain is colder than ordinary mountain forests, and the temperature at night has reached several degrees below zero.

Lin Ziming and Wei fan are OK to say that as practitioners, they can keep out the cold when their aura works a little.

But the entourage like Zhao Zhiming is not so easy.

However, after all, they are specially selected personnel. Their awareness of difficult conditions is much higher than those of small fresh meat. In addition, with the assistance of simple heating and other equipment, a winter night in the wild was survived.

Fortunately, no one caught a cold.

In the early hours of the next morning.

There was a sudden sound of helicopter engines near the mountain gate.

At the same time, a message came from the attendant on duty:

The personnel and materials dispatched by the organization have arrived.

Then after another half an hour or so, the sound of a team of people walking and talking came from the origin of the cliff.

However, due to the late dawn in winter, Lin Ziming didn't see their faces clearly by the lights near the cliff until the "foreign aid" came near.

The leader of the group was a little old man of about 60 years old. He looked almost as old as Lin Li, but his hair was much richer than Lin Li.

The man has a tall nose, a Chinese face and a wisp of beard on his chin. He looks quite dignified.

Obviously, this should be another scientific research winner.

Lin Ziming hurriedly stepped forward. Just as he was about to introduce himself, Yu Guang saw a man behind the little old man and said softly:

"Eh, Xiao Wang? Why are you here?"

The visitor waved to him:

"Good morning, Colonel Lin!"

you 're right.

Following behind the little old man was Wang Qiang, a disciple of Lin Li's family.

The girl was carrying an instrument with one hand and closely followed the little old man. It looked like a rebellious school.

However, after his initial surprise, Lin Ziming quickly reacted:

Also, Wang Qiang's team instigated the L17 practice system. It's normal for her to be sent here.

In terms of the local understanding of Reiki, this girl can at least rank in the top three.

When a few people came in front of him.

Wang Qiang put down the instrument, jumped in front of Lin Ziming with great familiarity, pointed to the little old man and said:

"Colonel Lin, let me introduce you.

This is Academician Li Baian, Daniel in the direction of material and heat condensation. At the beginning, my elective defense was passed by Academician Li. "

When he learned that the other party was a top national talent, Lin zimington was awed:

"Hello, Academician Li. This is Lin Ziming."

Li Bai'an shook hands with him politely, and the meeting between the two sides was much easier when Wang Qiang, a familiar girl, built a bridge:

"Colonel Lin, I met you for the first time, but I've heard a lot about you."

Seeing that Lin Ziming was a little strange, Li Baian stretched out his hand and made a gesture:

"Xiao Fang, who draws blood from the magic capital, is my son. After I was approved to contact the guangmen project some time ago, I heard him mention you. He also praised you as a hot-blooded man."

Lin Ziming laughed at the speech:

"Oh, it's him..."

Then Wang Qiang introduced other staff:

"This is Guo Fang from the Institute of geology, this is Yue Xianmin, and this is..."

After a brief acquaintance with the crowd, Lin Ziming looked at his watch:

"It's 4:32 a.m. and there's still plenty of time. Academician Li, do you want to take a rest first?"

Li Baian waved his hand and showed a positive color:

"It's not necessary to have a rest. Time waits for no man. Colonel Lin, let's start testing now."

There may be a lot of local moths mixed with water or who like to take a pinch attitude and have little level but high shelf thief.

But those parallel products can never be approved to be exposed to such projects, and the real top researchers like Li Baian have the consciousness of hard work.

For example, Liu, who won the national science progress award with Li Baian, once attracted countless tears because he revised his manuscript on the second-class high-speed railway.

Lin Ziming likes to deal with such pragmatic people. Wen Yan immediately feels a lot better about Li Bai'an:

"That's hard for Academician Li."

Then they came to the edge of the cliff and began to prepare the instruments.

Fifteen minutes later.

A gas chromatography-mass spectrometer is ready and sampling begins.

Ten minutes later.

A test report is released.

Li Bai'an took the report handed by his assistant and looked at it for a few times. His eyebrows suddenly twisted.

Seeing this, Wang Qiang asked curiously:

"Academician Li, is there any problem with the analysis result?"

Li Baian nodded and handed her the report:

"Xiao Wang, look for yourself."

Wang Qiang took the report, looked at it for a few eyes and shouted:

"The unknown gas is 0.3 ‰, and its character is in line with the characteristics of Reiki. It is more than 300 times less than that in the big Mo world, but it still exists... I'll go. The total amount of nitrogen deposition will be so small?"

In one column of Wang Qiang's report, the nitrogen content in the air per unit volume remains unchanged, but the total amount of nitrogen deposition in the air is terrible!

as everyone knows.

Nitrogen is the basic component of protein, genetic material, chlorophyll and other key organic molecules. All organisms need nitrogen to maintain their lives.

Nearly 80% of the gas in the atmosphere is nitrogen, accounting for a very high proportion.

The biogeochemical cycle of nitrogen and phosphorus will cause the so-called uncoupling phenomenon. Previously, it was generally believed that the source of nitrogen was the atmosphere.

However, the current study found that about 14% of nitrogen comes from weathering.

That's why.

In many areas with a large number of exposed rocks on one side, there are often a large number of trees on the back, thus forming various spectacular and wonderful natural scenes - such as Guilin mountains and rivers, such as Huangshan, and

This cliff of zhangren peak.

Cliff refers to the steep side of the mountain. Even if you haven't seen it in reality, you should be able to make up for it.

Where there are cliffs, exposed rock masses can be seen almost everywhere.

In addition, Taoist Huang mentioned earlier that this generation is blowing valley wind, and there is absolutely no lack of weathering conditions.

Therefore, under normal circumstances, the total amount of nitrogen deposition in the air should not be too low.

However, the test report in Wang Qiang's hand shows that the total amount of nitrogen deposition in the air is only 4.7 kg / ha!

Li Baian thought for a moment and said to his assistant:

"Xiao Zhou, organize everyone to explore whether there is an area suitable for a large number of blue-green algae or Frankia around."

Xiao Zhou is a very introverted young man. When he hears the speech, he pushes his glasses:

"Yes, I'll do it now."

Students who have studied chemistry should know.

Nitrogen resources are abundant in nature, but only a few prokaryotes, namely bacteria and cyanobacteria, can fix nitrogen in the air.

These prokaryotes transform nitrogen in the atmosphere into nitrogen that can be absorbed and utilized by plants through self growth or symbiosis with plants, which is called biological nitrogen fixation.

One of the most famous is Rhizobium, which belongs to the class of Frankia.

Therefore, Li Baian's first reaction after reading the report is that there may be a certain autotrophic flora around him.

The authigenic nitrogen fixation efficiency is low and the amount of nitrogen fixation is small.

If you want to completely digest nitrogen in an area, the number of such flora will never be too small, or even unimaginable.

An hour later, the sky brightened slightly.

Xiao Zhou came panting:

"Li Yuan, we have tested around and found no qualified flora."

Academician Li looked more puzzled when he heard the speech:

"It's strange. Without nitrogen fixing bacteria, where will nitrogen go? Most plants can't absorb nitrogen."

Wang Qiang on one side also looked distressed. Her eyes looked at the distance at a loss.

Where did the lost nitrogen go?

Seeing that the "foreign aid" from the headquarters seemed helpless, Lin Ziming took the initiative to bring two glasses of water and said to them:

"It's a little cold. Let's drink first. Don't catch a cold.

In another hour or so, the day will be almost completely bright. At that time, please ask patriarch Wei to see if Taoist Huang's statement is accurate.

If the aura in the morning is really stronger than that in other periods, maybe we can start from this point of view. "

Wang Qiang said thanks and reached out to take the water cup. Suddenly a light flashed in his mind.

The girl quickly ran to the place where the equipment was placed, picked up an instrument and tested the collected air samples.

After about five or six minutes, the instrument test results came out.

Wang Qiang quickly took out the file from the device and directly locked one of the lines.

A moment later, an exclamation sounded:

"This... This is impossible. How could this happen?!"