What does the cold dew solar term mean? What does cold dew mean? According to historical records: "Dou said that cold armor is cold dew, and it freezes when it meets cold, so it is named cold dew." And "dew is cold, it will condense", that is, due to the arrival of cold dew, the climate changes from hot to cold, and everything is born with cold, and gradually declines. This is the season of alternating hot and cold. In nature, the qi of yin and yang begins to change, the yang is gradually declining, and the yin is gradually born. Our physiological activities should also adapt to the changes in nature to ensure the physiological (yin and yang) balance in the body. Traditional Chinese medicine emphasizes "nourishing yang in spring and summer, nourishing yin in autumn and winter" in the four seasons health preservation. Therefore, we must pay attention to maintaining the yang in the body in autumn. When the climate turns cold, it is the time when the human body's yang is gathering and the yin essence is hidden inside, so it is necessary to give priority to maintaining the yin essence. That is to say, the principle of "nourishing and harvesting" is inseparable from autumn. Autumn has been a golden autumn since ancient times, and the lungs in the five elements belong to gold, so the lung qi corresponds to the golden autumn qi. "In the golden autumn season, it is dry." At this time, the dryness of pathogenic factors will easily invade the human body and consume the yin essence of the lungs. If nursed back to health improperly, the human body will have a series of autumn dryness symptoms such as dry throat, dry nose and dry skin. Therefore, the diet in late autumn should nourish yin and moisten dryness (lung). The ancients said, "In autumn, you should eat hemp to moisten it." At this time, we should eat more soft foods such as sesame, glutinous rice, japonica rice, honey and dairy products, and at the same time increase chicken, duck, beef, pork liver, fish, shrimp, jujube and yam to increase our physical fitness; Eat less spicy products, such as pepper, ginger, onion, garlic, because overeating spicy, it is easy to hurt the human yin essence. What season is cold dew? Autumn cold dew is the seventeenth solar term among the twenty-four solar terms, and the annual1October 8th or 9th belongs to autumn, 10. Cold dew indicates the official start of autumn season; The time is in Gregorian calendar every year1October 7 -9 10. When the apparent sun reaches longitude 195. "Twenty-four solar terms" said: "In September, the dew is cold and will condense." Cold dew means that the temperature is lower than that of the white dew, and the dew on the ground is colder and will soon condense into frost. In the cold dew season, Nanling and the vast area to the north have entered autumn, the northeast has entered late autumn, and the northwest has entered winter or is about to enter winter. At this time, the temperature in most parts of South China continued to drop. The average daily temperature in South China is less than 20℃. Even in the areas along the Yangtze River, it is difficult for the mercury column to rise above 30℃, while the minimum temperature can be reduced to below 10℃. Except for a few valley lowlands, the five-day average temperature in the northwest plateau is generally lower than 10℃, which is already winter according to the standard of four seasons climate division. First frost store, a thousand miles away, is quite different from the autumn scenery in South China. What are the traditional customs of cold dew in rural areas? For many people, at this time, autumn is thick and the weather is fine, which is suitable for going out to enjoy autumn, especially for climbing high and overlooking, and it is more pleasant to see the mountains and plains. Eating pears in cold dew: After cold dew, fruits from all over the country are listed. As the weather becomes dry in autumn, it is easy to get angry. Therefore, in many rural areas, the elderly have the habit of telling their children to eat pears; For some middle-aged and elderly people, a cup of chrysanthemum tea or a mouthful of chrysanthemum wine is also a good choice. Eating flower cake in cold dew: After cold dew, leaves fall in autumn, flowers and trees wither gradually, and eating flower cake in cold dew means "staying green". Moreover, flower cake is said to be rising step by step, so it is often used as a diet for cold dew. Farming custom: The cold weather with dew is very beneficial to the autumn harvest. There is an agricultural proverb: yellow fireworks should also be collected, and lotus roots should not be collected until the fish is caught. Soybean is harvested in the cold open air, pomegranate and hawthorn are picked. Cold dew peach is a late-maturing peach variety in the north, and its maturity is around cold dew peach, so it is named "cold dew peach". The harm caused by cold dew is 1, which affects production. In the year of cold dew, the rainfall in South China is also decreasing day by day. The western part of South China is about 20 mm, and the eastern part is generally about 30 to 40 mm. The frequent rainfall around the clock has affected the emergence of "Sanqiu" and has become a disastrous weather in most parts of South China. 2, affecting sowing. The climatic characteristics associated with the rain in Mao Mao are: high humidity, more clouds, less sunshine and more cloudy days, and the number of foggy days has obviously increased since then. However, whether the autumn rain seriously affects the progress and quality of "Sanqiu" directly. To this end, on the one hand, we should use the weather forecast to harvest and sow in sunny days; On the other hand, according to local conditions, we should take various effective farming measures such as deep ditch and high compartment to reduce wet damage and improve sowing quality. 3. Endangering animal husbandry. In the plateau area, before and after the cold dew is one of the most serious seasons of snow damage. Snow jams traffic and harms animal husbandry production, so we should pay attention to prevention.