The second Qinghai-Tibet scientific expedition achieved landmark results. How bad is the climate environment on the Qinghai-Tibet Plateau?

The climate on the Qinghai-Tibet Plateau is very harsh, with high altitude, low temperature and strong ultraviolet rays, leading to hypoxia, soil erosion and grassland degradation.

The Qinghai-Tibet Plateau, located in the west of China, not only has a very bad natural environment, but also has a very bad climatic environment. It is the highest plateau in China and even the world, and is called the roof of the world. The China 1 Qinghai-Tibet Plateau expedition took place in 1973, and more than 40 years have passed since the second expedition in 20 17.

High altitude and low temperature.

Because the Qinghai-Tibet Plateau is very high above sea level, its temperature is very low. Every time the altitude increases by 100 m, the temperature will decrease by 1 Celsius. Coupled with the complex topography of this plateau, the climate and environment here have changed greatly. Due to the thin clouds and strong solar radiation on the Qinghai-Tibet Plateau, the temperature here rises rapidly and cools rapidly, and will drop to a very low temperature at any time.

hypoxia

As mentioned earlier, the Qinghai-Tibet Plateau is high in altitude and the air clouds are very thin, so it is easy to form a low pressure. Low pressure is easy to lack oxygen, especially in places above 4 kilometers above sea level, most people will have acute hypoxia reaction, dizziness, shortness of breath, nausea, abdominal distension and other symptoms, and even some people will have rapid heartbeat and coma. For some people, this meteorological phenomenon is temporary and will disappear after a period of adaptation, but for some people, it is difficult to adapt to the hypoxia reaction at high altitude for a long time.

Ultraviolet rays are very strong.

Because the air clouds on the Qinghai-Tibet Plateau are very thin, the ultraviolet rays emitted by the sun are not easily absorbed, so the ultraviolet rays on the Qinghai-Tibet Plateau are very strong. If you can't take protective measures when you go out, it is easy to make the cell membrane of the body undergo peroxidation, which will lead to the skin turning black. In addition, the problems of soil erosion and grassland degradation in the Qinghai-Tibet Plateau are also very serious, which requires our scientists to carry out scientific research continuously.