Mosses are the first terrestrial plants on Earth and do not germinate through seeds, while mosses that are spread by spores are prolific and increase the oxygen content of the Earth's atmosphere. Pen % fun % Pavilion www.biquge.info

According to the research report of scientists, about 4 on Earth. 700 million years ago, bryophytes spread rapidly on the earth, becoming the earth's first stable central enterprise source plant, allowing intelligent life to reproduce.

The appearance of oxygen in the Earth's atmosphere occurred 2.4 billion years ago, known as the Great Oxidation Event.

However, it took two billion years for the earth to develop from nothing to the current oxygen content in the earth's atmosphere.

That is, 400 million years ago, the oxygen content of the earth was reached.

According to scientists' speculation, it is forests that raise the oxygen levels of the planet,

Compared to trees, lichens and mosses contribute about 30 percent of the oxygen to humans.

There are about 20,000 spells on bryophytes on Earth.

Bryophytes have been known as pioneers of nature since ancient times.

This is because many bryophytes are able to secrete a liquid that slowly dissolves the surface of rocks, accelerates the weathering of rocks, and promotes soil formation, so bryophytes are also pioneers for the growth of other plants.

Bryophytes can also turn swamps into ordinary dirt roads, and are known as "surface shapers".

This is entirely because bryophytes that are extremely resistant to water and humidity, such as sphagnum moss and wet moss, grow and reproduce in lakes and swamps, and their senescent plant bodies will gradually die and decay over time, and settle to the bottom of the water, and over time, the plant will accumulate more and more.

As a result, bryophytes continue to develop towards the center of lakes and swamps, and the area of clean water in lakes and marshes will continue to shrink, and the bottom of the lake will gradually become too high.

Finally, let lakes and swamps become land.

Many species of bryophytes can also be used as a test of soil pH.

That's because different types of moss grow in different pH soils.

Mosses are bryophytes that grow in clusters and cushions, and because there are many gaps between plants, mosses have a good role in retaining soil and storing water.

Some mosses have the ability to store a lot of water, such as peat moss in swamps, which can absorb up to 20 times the amount of water in their bodies.

In ancient times, some people used dried moss as a fire and could eat it.

……

"They started walking back, and I was afraid that we wouldn't be able to get to where we were looking for, and even more so when we walked over, we found some moss trampled footprints.

Even if the sand and dust were covered, it was not the same as the one next to it because of the short time, and I am sure that the combined forces had appeared here before.

What do we do now? There is no reason for us to follow them back to the source. ”

The missile told them what it saw.

"Guess what I found on the edge of the riverbed below the canyon?"

He said as he looked through the telescope at the Harima greenhouse at the riverbed under the canyon.

"I'll see!"

Ma Chao also took out his telescope for the first time.

"My goodness, isn't this a greenhouse?"

Ma Chao subconsciously touched his shriveled belly, looked at the greenhouse full of sand and dust, and said.

"What does it mean to be able to see the greenhouse?"

Zhang Jun looked at Li Si and said.

"It means that there are people living in this generation, but it doesn't mean that they are in the middle of Zone B."

Li Si responded to Zhang Jun's words.

"What do you say is planted in it?"

Ma Chao said with a saliva in his mouth.

"It must be alkaline-tolerant plants, such as seawater rice fields that were developed a hundred years ago."

He Miao said.

"It's really worthy of farming, and I know everything."

Zhang Jun looked at He Miao and said.

"Everyone knows that the water on Mars is brine, and in the saline land of the earth, there will be white salt frost when you taste it, and we can see it through the reflection of the moonlight on the riverbed on both sides of the canyon.

In most cases, when the soil contains a lot of sodium chloride and sodium sulfate, it will be called saline soil.

When there is more sodium carbonate and sodium bicarbonate in the soil, it is called alkaline soil.

Most of the soil on Mars is saline-alkaline.

When everyone was reading, they had read from biology books that many plants could not survive in such soil, and even poisons in the plant kingdom.

Because the salt tolerance of plants is generally relatively low, under normal circumstances, the salt concentration in the soil reaches more than 0.5%, and many plants cannot survive.

However, there are still many plants on the earth that have strong salt resistance and can grow tenaciously on saline soil, and scientists call them saline-alkali plants.

Saline-alkali plants have a variety of anti-salt methods and ingenious anti-theft skills, which fulfills the saying that 'the eight immortals cross the sea to show their magical powers'.

So, there is nothing strange about the appearance of such plant greenhouses on Mars. ”

The navy, which farms on the high seas, knows a lot.

"Don't tell me, what do you think I, a person with good eyesight, have discovered?"

Zhang Jun smiled.

"You can see five hundred meters away, and with the binoculars, what do you see?"

Ma Chao, who knew that Zhang Jun had good eyesight, asked.

"There is a forest of mountains more than two thousand meters away, Captain Li, how many times have you been to Mars?"

After merging with the Black God, Zhang Jun, who had better eyesight than before, looked at Li Si and asked.

"I've always served between space nations in Earth's orbit, and this is the third time I've been to Mars, but I haven't stayed for long.

What do you want to say? ”

Li Si asked thoughtfully.

"The vegetation here is not only moss, but also salinity-tolerant trees brought from the earth, such as date trees, and I believe that the seedlings know better."

Putting down the binoculars, Zhang Jun looked at He Miao and said.

"It's not a big deal to have trees on Mars, but I don't believe it if you want to say that there are forests where chickens don't shit, birds don't lay eggs, and turtles don't go ashore!"

Li Si took out his telescope in confusion.

"Captain, you'd better turn on the nano tip function, otherwise you're not as good as me, a person with good eyesight."

Zhang Jun said.

"I saw it too, and they're amazing."

The missile said in shock.

"There are many trees that are strange and tolerant to salinity, such as elm, luan, black locust, cinnamon willow, mulberry, torch tree, mountain peach, gold and silver wood, moon season and pomegranate, and so on.

This is Mars, to immigrate, these are all must-haves, nothing is impossible! ”

He Miao said.

"It's going deep into the mountains and old forests, and there are two roads in front of us, which one do you say, and my intuition tells me that there must be a trap everywhere."

The mermaid looked at them and said.

"Stones! Scissors! Cloth! ”

The Tyrannosaurus suddenly stretched out his hand.

"Childish!"

Zhang Jun rolled his eyes at the tyrannosaurus and said.

"So what do you say?" (To be continued.) )