How to write the composition of the twenty-four solar terms

Twenty-four solar terms are a splendid culture created by the working people in our country, which can reflect the changes of seasons, guide agricultural activities and affect the food, clothing, housing and transportation of thousands of households.

In ancient times, a year was divided into twelve months, and each month had two solar terms. The former is solar terms, while the latter is neutral. For example, beginning of spring is the first month's festival, and it rains in the first month. Later generations called solar terms and neutral gas solar terms. The names of the 24 solar terms are: beginning of spring, Rain, Sting, Vernal Equinox, Qingming, Grain Rain, Changxia, Xiaoman, Mangzhong, Summer Solstice, Xiaoshu, beginning of autumn, Chushu, Bailu, Autumnal Equinox, Cold Dew, Chufrost, beginning of winter, Light Snow, Winter Solstice, Slight Cold and Severe Cold.

March 20th to 22nd is the vernal equinox, which is one of the solar terms reflecting the changes of the four seasons. On the vernal equinox, the sun shines directly on the equator, and the time between day and night is equal all over the earth. Therefore, the ancient vernal equinox and autumnal equinox are also called "equinox", and there is a folk proverb that "vernal equinox and autumnal equinox are equally divided day and night". Grain Rain is one of the 24 solar terms. Every April 20th or 2 1 day, when the sun reaches 30 degrees of the yellow meridian, it is Grain Rain. At this time, the weather is mild and the rainfall increases obviously, which has a great relationship with the growth and development of cereal crops. Appropriate rainfall is beneficial to the greening and jointing of overwintering crops and the sowing and emergence of spring sowing crops. Grain Rain is in the middle and lower reaches of the Yellow River, which not only points out its agricultural significance, but also shows that "spring rain is as expensive as oil".

On May 5 or 6 every year, when the sun reaches 45, it is the "long summer" solar term. China has been used to long summer as the day of long summer since ancient times. In the long summer, everything is thriving. Before and after the "Long Summer", only the area south of Fuzhou-Nanling Line in China really entered summer, while parts of Northeast and Northwest China just entered spring. 1October 8-9 is cold dew, which was regarded as a sign of cold weather in ancient times. The solar term of the Mid-Autumn White Dew is "dew condenses white", and when it is cold in autumn, it is already "dew is cold and will condense" into frost.

Twenty-four solar terms are a tradition in our country.