Brief introduction of severe cold solar terms

Brief introduction of severe cold solar terms

Great cold is the last of the 24 solar terms in the whole year. Every year around 65438+1October 20th in Gregorian calendar, when the sun reaches 300, it is a severe cold. The following is a brief introduction of the great cold solar terms I collected, hoping to help you!

abstract

Twenty-four solar terms: "In mid-December, I met before (slight cold)." Time-sharing, time-sharing, time-sharing and time-sharing quote three rites and meanings: "Great cold is the middle, shaped by slight cold, so it is called great ... extremely cold, so it is called great cold." At this time, the cold wave frequently goes south, which is the coldest period of the year in some parts of China. The wind is strong, the temperature is low, and the snow on the ground does not melt, showing a cold scene of ice and snow. During this period, railway, post and telecommunications, petroleum, transmission lines, water transport and other departments should pay special attention to taking measures to prevent severe weather such as strong winds and blizzards as soon as possible. Agriculture should strengthen the cold and antifreeze of livestock and wintering crops.

origin

Great cold refers to extremely cold weather. The Great Cold is the last of the 24 solar terms in China. After the great cold, a new year's solar cycle is ushered in.

As the saying goes: "When flowers and trees control the season, birds sing to report the farming season." Flowers, trees, birds, beasts and birds all move with the seasons, so their regular movements are regarded as an important symbol to distinguish seasonal solar terms. In ancient China, the Great Cold was divided into three stages: "One stage is chicken milk; Second, the symptoms of bird disease; Three times, the water is strong. " In other words, chickens can be hatched in the cold solar terms. Falcons such as eagles are in a state of strong predation ability, hovering in the air to find food to supplement their body energy to resist the cold; In the last five days of the year, the ice in the water area has frozen to the center of the water, and it is the strongest and thickest, so children can enjoy skating on the river (the average daily temperature can only be below -5℃ for several consecutive days, and this activity usually appears in the north of the Yellow River). In addition, the Hua Xinfeng symptoms of severe cold are "Daphne, Orchid and Alum (born in Jiangnan)". It can also be used as an important sign to judge the severe cold.

Surface characteristics

During the severe cold solar term, the atmospheric circulation is relatively stable, and the adjustment period of circulation is about 20 days. When this circulation is adjusted, there will often be a wide range of rain and snow weather and strong winds to cool down. When the west of 80 degrees east longitude is a long wave ridge and East Asia is a coastal trough, under the influence of northwest wind flow control and constantly supplemented cold air, China will have a sustained low temperature. Like slight cold, great cold is also a solar term indicating the degree of cold weather. Modern meteorological observation records show that in some areas of China, severe cold is not as good as slight cold, but in some years and a few coastal areas, the annual minimum temperature will still appear in the severe cold solar terms. Therefore, it is necessary to continue to do a good job in the cold protection of crops, especially to protect livestock from wintering.

In the severe cold season, the average temperature in most parts of southern China is 6℃ to 8℃, which is nearly 65438 0℃ higher than slight cold. The proverb "slight cold and severe cold, cold into a ball" shows that the severe cold solar term is also a cold period of the year.

For some crops, a proper low temperature is necessary in a certain growth period. Wheat and rape with strong winterness need lower temperature through vernalization stage, otherwise they cannot grow and develop normally. Most of southern China is warm in winter all year round. Wheat and rape sown too early often grow too vigorously, bolting in advance, and their cold resistance is greatly weakened, which makes them vulnerable to low temperature frost. It can be seen that selecting crop varieties according to local conditions, sowing and planting in time and taking effective measures to promote and control are important links to win high yield.

Slight cold and severe cold are the periods with the least rainfall in a year. During the cold solar term all the year round, the rainfall in most parts of the south only increased slightly compared with the previous period, with 5 ~10mm in most parts of the south and only1~ 5mm in the mountainous areas of the northwest plateau. During the winter drought in South China, the water consumption is small, and the contradiction between supply and demand of farmland water is generally not prominent. However, "if you are bitter and cold, don't complain about the rain and snow. Snow is reserved for next year's wheat." In the case of scarce rain and snow, it is undoubtedly beneficial to the growth of wheat crops to water in different areas according to different farming habits and conditions. During this period, the cold wave frequently goes south, which is a rather cold period in most parts of China in a year. Railway, post and telecommunications, petroleum, maritime transportation and other departments should pay special attention to take measures as soon as possible to prevent severe weather such as strong winds and blizzards. Agriculture should strengthen the cold and antifreeze of livestock and wintering crops.

Health knowledge of severe cold and solar terms

1, it is more appropriate to go to bed early and get up late. Great cold is the last solar term in winter, so it has some characteristics of winter, that is, the temperature is relatively low, people are easy to catch a cold, and the temperature difference between morning and evening is great, the day is short and the night is long. Therefore, the most important thing in severe cold is to keep warm. If you sleep too late and get up too early, it will be very cold. So it is more appropriate to go to bed early and get up late. Going to bed early is to nourish the spirit, replenish the yang, get up late, avoid being too cold, and replenish the yin.

2. Burn your feet with warm water before going to bed. Everyone has this experience. When their feet are cold, they will feel cold all over, because there are many acupoints and meridians on their soles. Moreover, the feet are also peripheral, and the peripheral circulation is not good, which will definitely affect the whole body. Therefore, it is very important to keep your feet warm and keep your blood flowing. Therefore, it is suggested to soak feet with hot water before going to bed, which can dilate blood vessels, speed up blood flow, improve skin tissue nutrition of feet, and reduce muscle tension, which is conducive to preventing frozen feet, disease prevention and health care. And because warm feet can also promote sleep and improve the quality of sleep, many people like to read and write at night. People who have this habit should soak their feet with hot water before going to bed.

The sun is out, so go out for exercise. Try not to "smell the chicken dancing" in winter sports. First, because the air pollution is very serious now, the morning is usually the worst moment of smog, and premature exercise will damage the health of our lungs. Second, morning is the time when polluted air rises. Premature exercise is not only bad for your health, but also harmful to your health. Therefore, the best time for exercise is after the sun comes out. If the weather is fine and there is no smog, we can do outdoor sports to our heart's content.

4. tonifying kidney is the key. In diet, it is mainly to pay attention to nourishing kidney and tonifying kidney. According to the theory of Huangdi Neijing, winter is the kidney of the five internal organs, so tonifying the kidney in this season is still the focus. In addition to eating more foods that nourish the kidney, we should also pay attention to the fact that the diet should not be too salty, because too much salt will hurt the kidney. Therefore, the diet with a bad cold is mainly light. It is recommended to eat more beans, drink more porridge and various soups for nourishing kidney and tonifying kidney, because porridge and soup are very easy to digest and absorb, and no salt is needed.

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