What do you mean shocked? Be careful of the cold and warm changes of solar terms.

Sting is one of the 24 solar terms. Every year, when the sun runs to 345 degrees of the yellow meridian, it is called tingling, usually on March 5 and 6, when the temperature rises rapidly and spring thunder sprouts. "Stinky" refers to the activities that small animals are drilled into the soil by Lei Zhen to spend the winter.

Brief introduction of solar terms

Jěng zhé is the third of the 24 solar terms. On March 5th and 6th, every year, when the sun reaches 345 degrees, it is "in a daze". Sting means that when the weather gets warmer, the spring thunder begins to sound, awakening the insects that are dormant and hibernating underground. Sting means hiding. "Twenty-four solar terms" said: "February Festival, everything vibrates, and when it vibrates, it thunders, so it is called thunder. It's an escaped cockroach. Tao Yuanming, a poet in the Jin Dynasty, said in a poem: "In the spring rain, thunder began in the east corner, and everyone was lurking and the grass was comfortable. "In fact, insects can't hear thunder. Spring is back, and the warmer weather is the reason why they end their hibernation and "run away in surprise". In China, the time when the spring thunder begins to ring varies from place to place. On the average for many years, thunder can be heard in southern Yunnan around the end of 1, and the first thunder day in Beijing is in late April. The saying that "thunder begins with you" is consistent with the climate law in Jiangnan.

In ancient China, the fright was divided into three stages: "When the peach blossoms bloom; Second, wait for the sound of Cang Geng (Huang Li); Three waiting eagles turned into pigeons. " Description has entered the season of mid-spring, peach blossom red, pear blossom white, orioles blare and swallows go. According to the general climate law, the weather in all parts of the country began to get warmer, with more rain, and most areas entered spring ploughing. When all kinds of insects dormant and hibernating in the soil are awakened, eggs in winter will also begin to ovulate. It can be seen that fright is a solar term reflecting natural phenology.

People should pay attention to the forecast of strong cold air activities by meteorological stations, guard against changes in temperature and cold, and prevent the prevalence of seasonal diseases such as colds.

Seasonal variation

"Spring thunder rings, everything grows", and it is a fine sunny day in September, with the temperature rising and the rain increasing. In addition to the winter scene in which the northeast and northwest regions are still covered in white, the average temperature in most parts of China has risen above 0℃, the average daily temperature in North China is 3-6℃, the temperature in the south of the Yangtze River is above 8℃, and the temperature in Southwest and South China reaches 10- 15℃, which is already a harmonious spring.

"Spring thunder scares thousands of insects", and the warm climate conditions are conducive to the occurrence and spread of many diseases and insect pests, and weeds in the fields are also sprouting. It is necessary to do a good job in pest control and intertillage weeding in time. "Peach blossoms come, swine fever comes", and we should also pay attention to the epidemic prevention of poultry and livestock. At this time, the temperature rose rapidly, and spring thunder gradually appeared in most areas of the Yangtze River Basin. In most parts of southern China, the first sound of spring thunder can also be heard in the perennial rain and stormy waves; However, except for a few years, it usually doesn't thunder until Qingming, which is the latest area where thunderstorms start in most parts of southern China.

meaning

Thorns and thunder are the most striking. For example, "it thundered before the earthquake, and the clouds could not open for forty-nine days." The solar term of fright is in the middle of cold and warm weather. According to the cold and warm weather, there are proverbs to predict the weather in the later period: "Cold fright, warm spring equinox" and so on. The wind with prickly knots is also used as a basis for predicting the weather in the later period. For example, "if you are afraid of the north wind, you will spend the winter from the beginning" and "if you are afraid of the south wind, you will plant seedlings later". Modern meteorological science shows that the occasional thunder before and after the "wake-up" is due to the increase of earth humidity, which leads to the rise of hot air near the surface or the strong and frequent northward movement of hot and humid air. Judging from the natural phenological process in various parts of China, due to the large span between north and south, the time when spring thunder begins to ring is different in the morning and evening. On the average for many years, thunder can be heard in southern Yunnan around the end of 1, and the first thunder day in Beijing is in late April. The saying that "thunder begins with you" only conforms to the climate law of the Yangtze River basin.

Awakening of Insects

Like other solar terms, the date of the fright is not necessarily related to the lunar calendar (20 1 1 is the second day of February).

Every year from March 4th to 7th, when the sun reaches 345 degrees, it is a "fright". Sting means that when the weather gets warmer, the spring thunder begins to sound, awakening the insects that are dormant and hibernating underground.