What does it mean to humans that grass grows on Mount Everest? Why does grass grow on the mountainside?

thumbnail

As the highest peak in the world, Mount Everest must be known to anyone who has read books! In real life, many people want to go to the top of Mount Everest to enjoy it, but this is just a thought. It is very difficult for ordinary people to climb the mountain.

However, in 2020, a British professional climber discovered a strange phenomenon at an altitude of 6159 meters. At such a high altitude, grass actually grows in some places. It's strange to think about it, how is this possible?

However, this is indeed the case. When he announced the news, it immediately aroused heated discussions, and even caused panic among experts and scholars. Because this is not good news. If it is allowed to develop, the whole world may suffer.

Introduction to Mount Everest

Mount Everest is the highest peak in the world, with an overall altitude of 8,848 meters. It is located on the border between China and Nepal and is the main peak of the Himalayas. Due to its challenging height, many mountaineering enthusiasts want to challenge it every year.

The shape of Mount Everest is like a super large pyramid. Its terrain is high in the south and low in the north. The terrain is very complicated and steep. It is surrounded by cliffs and cliffs. In addition to the cold climate, the living environment there is very harsh.

The lowest temperature on the summit of Mount Everest is minus 34°C all the year round, and some places on the mountain are covered with snow all the year round, and glaciers, ice slopes, and serac forests can be seen everywhere. The air at the peak is thin, and the oxygen content of the air is only a quarter of that in the eastern plains. Strong winds of force seven or eight often blow.

Sometimes there are even strong winds of level 12, the wind blows the snow, splashes and dances, filling the sky. Mount Everest has great scientific research value and has attracted people's attention for a long time. In 1960, Chinese mountaineers and scientists climbed to the top of Mount Everest from the north slope for the first time, creating an unprecedented miracle in the world's mountaineering history.

In fact, the Himalayas where Mount Everest is located was originally an ocean. After a long geological age, a large amount of gravel and sediment were washed from the land and accumulated in the Himalayas, forming a marine sedimentary rock layer with a thickness of more than 30,000 meters. .

After a strong orogenic movement, the Himalayas were squeezed and violently uplifted. According to estimates, the average rise is about 20-30 meters every 10,000 years. Until now, the Himalayas are still rising.

Why is there grass growing on the mountainside of Mount Everest?

In our imagination, Mount Everest should be covered with snow all year round, with only endless glaciers and snow-capped mountains. However, this is not the case, because of climate and altitude factors, there are still green plants and shrubs below 5,000 meters above sea level.

At an altitude of 2,000 meters is an evergreen broad-leaved forest belt, at an altitude of 3,000 meters is a mixed coniferous and broad-leaved forest belt, at an altitude of 4,000 meters is a coniferous forest belt, and at an altitude of 5,000 meters is an alpine shrub belt and alpine meadow belt. No more greenery in sight.

We know that in areas above 5,000 meters above sea level, the temperature there will drop by 0.6 degrees Celsius for every 100 meters increase, so the higher the altitude, the lower the temperature will be.

Normally, some vegetation needs suitable temperature and fertile soil to grow. Seeds cannot germinate in harsh climates and hypoxic conditions like Mount Everest, but it is really worrying that green plants are growing at an altitude of 6,000 meters.

What does it mean that green plants occur on a mountain peak at an altitude of 6,000 meters?

As early as 1975, humans launched a weather satellite to Mount Everest and began to survey and explore it. Since 1993, images sent back from satellites have shown that there are green plants growing on Mount Everest.

This discovery is a very bad situation for humans. If the range of green plants becomes wider and wider, it will bring huge troubles to humans. Therefore, we must pay attention to it and take precautions before it happens.

The reason why green plants appear on Mount Everest is mainly due to climate warming. Although this is a long process, once it happens, it means that the matter has reached a serious point.

Because it is very likely that extreme weather will be brought during this process, such as heavy rain, rain and snow, and even earthquakes. So what does global warming mean to humans?

1. Melting glaciers bring endless disasters

It is an indisputable fact that climate warming has caused glaciers to melt. Now green plants are occurring at the peak of 6,000 meters above sea level, which happens to be the most powerful proof. Don't think that the melting of glaciers has little to do with us. In fact, it endangers everyone on the planet.

Because the melting of glaciers will bring endless flood disasters, this kind of disaster is different from the past. After the flood, there will be drought. For human beings, it is undoubtedly the end of the world, and it is terrifying to think about it.

Moreover, there are still 1.4 billion people living around the Himalayas. Once the glaciers melt on a large scale, they will be the first victims.

2. Sea level rise

Sea level rise is a global sea level rise phenomenon caused by global warming, melting of polar glaciers, thermal expansion of upper seawater and other reasons. Studies have shown that the global sea level has risen by 10-20 centimeters in the past century, and the rise will accelerate in the future.

However, the actual sea level change in a certain area of ​​the world is also affected by the local land vertical movement—slow crustal ups and downs and local land subsidence. The sum of the global sea level rise plus the local land ups and downs is the relative sea level change in the region .

Rising sea levels will also increase ocean dynamics, submerge low beaches, and intensify coastal erosion disasters. Exacerbate seawater intrusion and soil salinization; cause seawater intrusion and affect water quality. Inundation of low-lying coastal cities will lead to climate change, severe oceanic cyclones such as typhoons and hurricanes will increase significantly, and the coastal land area will gradually shrink.

Related Posts