Which areas are located in such a position that you can feel the return of the south and the cold spring of the north?

In the Yangtze River valley in China and its south, and in the south of China, you can feel the cold in late spring in the north or go back to the south.

China is a vast country. In the north of our country, the climate is cold in late spring, but in the south, it is more prominent to return to Nantian. China is located in a wide climate zone, including subtropical climate and temperate climate, from March to April every year. Warm and humid airflow meets cold air in northern China, resulting in the phenomenon of returning to the south and cold in late spring.

First, it is annoying to return to Nantian, especially every spring. Due to the gradual warming of the low temperature in the past, there will be moisture and water supply in some places in the south, and even water will flow out of the wall to form Nantian, because there is almost no difference between the indoor temperature without heating surface and the outdoor temperature in the south. When the temperature rises, there will be a temperature difference between the indoor temperature and the outdoor temperature. Often the indoor temperature is not as high as the outdoor temperature, so when hot and cold air exchange, it will form a south return. Going back to the south, I can't dry the clothes for a few days or even a month, which is really annoying.

Second, the beautiful and moving cold spring in the north is not available every year. With the arrival of a new round of cold air, the temperature in all parts of the country has dropped significantly. Beijing has also ushered in a cold spring. The phenomenon of late spring cold and the formation of returning to the south sky are mainly caused by sudden weather changes. Returning to Nantian is mainly a natural phenomenon of warmer weather, because the water content in the south is relatively large, which generally appears in March and April in spring. The temperature rises gradually, the temperature rises, the temperature rises. The water droplets formed by the exchange of hot and cold air are more serious in the south. The late spring cold in the north is due to the cliff-like decline in the process of temperature rise, which leads to the late spring cold formed by low temperature. The appearance of late spring cold will cause some troubles to farmers, whether it is returning to Nantian in the south or late spring cold in the north, it is equally troublesome.

Third, the impact of extreme weather needs to pay attention to upper respiratory tract infections. The wet season is easy to cause the recurrence of muscle pain such as rheumatism and joint pain, and it also needs the general public to pay attention to keep warm, and some chronic diseases such as heart disease, hypertension and blood sugar. Patients should take medicine on time, do a good job of monitoring and prevent stroke. Cold weather in late spring in the north is also easy to cause upper respiratory tract infection, and eczema will occur in wet weather. In the north, citizens should pay more attention to keep warm and cold.

Therefore, China's return to the South and the cold spring are unique, both caused by extreme weather changes. This also warns us to pay attention to and protect the ecological environment. Whether it's cold in the south or the north, every place has its own unique characteristics. Southerners don't understand the cold in the north, just as northerners don't understand the humidity in the south, but in southern China, these two extreme weather can be really felt.