Bailu is the fifteenth solar term among the twenty-four solar terms and the third solar term in autumn. Every year between September 8 and 12, when the sun reaches 165 degrees of ecliptic longitude, we usher in the white dew solar term. The name of Bailu comes from the phenological phenomenon in nature, which means that the weather is gradually cooling, and the morning dew is getting thicker and thicker, condensing into water droplets, as if after a night of cold dew, the earth turns cold.
First, the characteristics of the white dew solar term
Cooler weather: The arrival of the Bailu solar term indicates that the summer heat has passed and the weather is beginning to cool. The morning dew condenses into droplets, as if nature is telling us that the cold season is coming.
Autumn high and cool: After the white dew solar term, the sky often looks high and refreshing, and this feeling of autumn high air makes people feel comfortable and pleasant.
Large nighttime temperature gap: In the Bailu solar term, the temperature at night has a large gap compared with the daytime. This is because the speed of heat dissipation on the surface increases, resulting in a significant decrease in temperature at night.
Second, the meaning of the white dew solar term
Harvesting and reserves: The arrival of the White Dew solar term means the beginning of the autumn harvest. At this time, farmers are busy harvesting various crops, and people are also beginning to stock up for the upcoming winter.
Reverence for nature: The phenological phenomenon of the white dew solar term makes us realize the magic and laws of nature. During this season, people express their awe and gratitude for nature in various ways.
Health and health: Bailu solar term, temperature changes, is a high incidence period for colds and respiratory diseases. Therefore, at this season, people pay more attention to health and health, and pay attention to the maintenance of diet and living.
Third, the night of the autumnal equinox of white dew, one night is cool and one night
"White dew autumn equinox night, one night cool night" is a widely circulated folk proverb that vividly describes the climatic characteristics of the white dew solar term. The autumnal equinox is the fourth solar term of autumn, before the autumnal equinox, the temperature difference between day and night is large, and after the autumn equinox, the temperature difference between day and night begins to gradually decrease. Therefore, the proverb "White dew autumn equinox night, one night cool night" tells us that in the period from the white dew solar term to the autumnal equinox, the temperature at night will become lower and lower, the temperature difference between day and night will increase, and people need to pay attention to keeping warm and adjusting their clothes at any time.
The Bailu solar term is a season full of poetry and painting, which shows us the charm and laws of nature with unique phenological phenomena and meanings. During this season, we not only feel the cooler weather and the refreshing autumn air, but also recognize the power of nature from harvest and reserve. At the same time, we should also pay attention to health and health at this season, follow the laws of nature, and adapt to the changes of the seasons.
In the future life, let us know more about and respect the laws of nature, and cherish every harvest and growth. At the same time, we must also learn to maintain health and health care in this season, so that your body can adapt to the changes of the seasons and meet a better future.