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Long summer is the seventh solar term among the twenty-four solar terms and the first solar term in summer. The festival is held on May 5-7 of the Gregorian calendar every year. At this time, the bucket handle of the Big Dipper points to the southeast, and the longitude of the sun reaches 45.
The almanac refers to the southeast dimension, that is, the long summer. Everything has grown to this day, hence the name Long Summer. "In the long summer, everything is thriving. After the long summer, the sunshine increased, gradually warming, and thunderstorms increased. Long summer is an important solar term, marking the peak season for the growth of all things.
Establishment means establishment and beginning. "Xia" means "big" in the old saying. Everything grew up and was named Changxia. Because China has a vast territory and a large span from north to south, natural rhythms vary from place to place.
In the long summer season, only the area south of Fuzhou-Nanling line in China presents the midsummer scene of "the trees grow dark in summer and the balcony reflects into the pond"; And parts of the northeast and northwest just have the breath of spring at this time.
On the day of long summer, many places have the custom of eating "long summer rice", eating eggs, weighing people and tasting three delicacies. Entering the long summer, people's metabolism is accelerated, and blood supply to the heart and brain is insufficient, which often makes people fidgety, tired and lazy. It is necessary to arrange work and rest time reasonably, supplement nutrition and adopt correct health care methods.
Beginning of spring, Changxia, beginning of autumn and beginning of winter represent the beginning and arrival of spring, summer, autumn and winter respectively. The word "Xia" in Er Ya is called "Chang Ying"; Win, take the meaning of "full" and "profit" Long summer is an important solar term, marking the peak season for the growth of all things. Everything grew up here, hence the name Long Summer.
In order to express the characteristics of time series more accurately, the ancients divided the solar terms into four groups according to the weather and phenology: divided, arrived, opened and closed. "Fen" means vernal equinox and autumnal equinox, which is called "dichotomy" in ancient times.
Solstice is the solstice in summer and the solstice in winter, which was called "the second solstice" in ancient times. "Qi" refers to beginning of spring and Changxia, "Closed" refers to beginning of autumn and beginning of winter, and beginning of spring, Changxia, beginning of autumn and beginning of winter are collectively called "Sili", which add up to * * * to "eight sections".
Long summer, farewell to spring, is the beginning of summer, so it is also called "the end of spring". Regarding the long summer, the 24 solar terms of Yuan Dynasty poet Wu Cheng are interpreted as: "Summer is false, and everything is false at this time." "False" or "big" here means that the plants in spring have grown up by this time.
After the long summer officially entered the rainy season, rainfall and rainy days increased significantly. Spring, long summer, autumn harvest and winter storage are the best seasons for many crops to grow vigorously. Adequate light, suitable temperature and abundant rain provide necessary conditions for plants. Everything is thriving, starting in the long summer. It is the reflection of farming culture in festivals.