Causes of low temperature and freezing damage in southern my country

The main reason why southern China suffers from low temperature and freezing damage is the impact of low winter temperatures and the southward flow of cold air.

Southern China is located in the subtropical and tropical monsoon climate areas, with a mild and humid climate. The average daily temperature is above 15°C, and severe cold weather is rare.

However, in winter, due to the influence of cold air moving southward, the temperature will drop significantly, and the low-temperature cold air will have a fixed impact on the southern region. As a result, the southern region cannot adapt to the sudden cold weather, which seriously affects the production of various crops. Growth and yield will also cause great losses to people's lives and transportation.

In addition, man-made reasons such as dense buildings and high population density can also cause the urban heat island effect, making the temperature in cities higher than in rural areas and making them vulnerable to extremely cold weather.

In short, the low-temperature freeze damage in South China is mainly due to the combined effects of cold air moving southward, climate change, urban-rural differences and other factors. In response to this situation, it is necessary to improve the ecological environment, strengthen the defense system against meteorological disasters, improve agricultural production technology and facilities, and establish a complete response mechanism to reduce and avoid the impact of low temperature freeze damage on agriculture, life, etc.