Is there any basis for high temperature, drought and heavy rain or more frequent in Sichuan in the future?

Through research, it is found that why the high temperature and heavy rain in Sichuan are more frequent?

Meteorologist Chen Chao said that the climate in Sichuan will be affected, especially the glacial permafrost, peatlands, dry-hot valleys along rivers and the habitats of giant pandas.

Rainstorm in Sichuan

It can be found from 196 1 to 20 19. In the past 20 years, the weather in Sichuan has become hotter every year. It will rise by 0. 17 degrees in ten years or so. And Panxi area has the fastest temperature rise. It rises by 0.29 degrees every ten years, which is the slowest in the whole basin and can rise by 0. 14 degrees every ten years.

From the seasonal observation, from 196 1 to 20 19, the rainfall in the basin area can be reduced by 12.7mm, while the rainfall in the plateau area can be increased by 10.4 mm every decade.

So the future development trend of basin climate is warm and dry. The western Sichuan Plateau will become warm and humid.

Rainstorm in Sichuan

And from 196 1 to 20 19, the probability of high temperature is getting higher and higher. It is estimated that between now and 2050, due to the possibility of moderate and high emissions of greenhouse gases. The overall temperature in Sichuan will rise. Moreover, the western Sichuan Plateau is obviously warming up and there will be more precipitation.

At the same time, the wind speed, air volume and ventilation days in Sichuan Province have shown a downward trend in recent 40 years, especially in basin areas. Although high temperature and high humidity are one of the conditions for agricultural growth. But in Sichuan, this is a phenomenon that does more harm than good.

First of all, the advantage of high temperature and humidity is that the area of fields that can be planted for multiple seasons in a year increases. However, the problem is that due to the hot weather, the germination period of crops is advanced and the growth cycle is greatly shortened, resulting in frequent occurrence of various pests.

In addition, the flow of major rivers in Sichuan has become smaller, and the wetland area has also become smaller. The glaciers gradually receded. If the total flow is further reduced. It also further aggravated the shrinking of wetlands. Then the utilization rate of water resources in the middle and lower reaches of the Yellow River will decrease.

High temperature in Sichuan leads to off the charts on the pavement.

It's cold when it's cold and hot when it's hot.

According to the above situation, what is the reason? The main reasons are the emission of greenhouse gases, the increase of aerosols and the acceleration of urbanization.

What shall we do? In the western Sichuan Plateau, we should strictly control all kinds of human resources development activities. Protect the habitat of giant pandas. Real-time monitoring of melting of glacier frozen soil. In southern Sichuan, it is necessary to prevent drought and deep forest fires. In basin areas, it is necessary to improve forest quality and strive to develop agriculture and animal husbandry. Chengdu should plan urban land reasonably to avoid heat island effect.