Brief introduction of long summer solar terms: characteristics and significance of long summer.

Introduction: Long summer is a solar term and belongs to summer. In the long summer, I began to wear light summer shirts, eat food to relieve summer heat and feel the cool weather in summer. So, what are the characteristics and significance of long summer? Let's briefly introduce the long summer solar terms I brought. Interested friends should have a look.

Brief introduction of long summer solar terms

Long summer is the seventh of the 24 solar terms and the first in summer. The festival of long summer falls 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 Yellow Meridian of Dayang reaches 45. "Almanac": "Dou refers to the southeast, Wei is the long summer, and everything has grown up since then, so it is named long summer." Long summer is an important solar term, marking the peak season for the growth of all things. After the long summer, the sunshine increases, the temperature rises gradually, the thunderstorm increases, and the crops enter a vigorous growth stage.

Chang Xia said that saying goodbye to spring is the beginning of summer. Spring comes and summer grows, autumn harvests and winter storage, and in the long summer, everything is thriving. 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 is the real summer of "the trees are dark and the summer is long, and the balcony reflects into the pond"; And some areas in the northeast and northwest have just entered spring. According to the classification standard of modern climatology (climate average temperature), summer begins when the average temperature of the day rises steadily above 22℃.

Characteristics of long summer

Solar term temperature

Astronomically, long summer bid farewell to spring, which is the beginning of summer. When the temperature rises obviously, the summer heat comes, thunderstorms increase and crops enter the peak season, people are used to taking long summer as an important solar term. In the long summer season, the temperature difference between north and south of China is large, and the same area fluctuates frequently. The average temperature in most parts of the country is around 18-20℃.

Rainwater characteristics

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. Monsoon climate is the main feature of China climate. Summer is affected by the warm and humid air flow from the ocean, which is hot, humid and rainy, which is beneficial to crop growth. In summer, crops have entered a vigorous growth period.

After the long summer, the temperature in North China and Northwest China rose rapidly, but the precipitation was still not much. In addition, it is windy in spring with strong evaporation. Atmospheric dryness and soil drought often seriously affect the normal growth of crops.

The significance of long summer

Long summer means bidding farewell to spring and welcoming summer.

Long summer is an important solar term, marking the peak season for the growth of all things. After the long summer, the sunshine time increases, the temperature rises gradually, the thunderstorm increases, and the crops enter a vigorous growth stage.

Long summer is the seventh of the 24 solar terms and the first in summer. The long summer festival is from May 5th to 7th in 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.

In the long summer season, only the south of Fuzhou-Nanling line in China is the real summer of "the trees grow dark in summer and the balcony reflects into the pond"; And parts of the northeast and northwest have just entered the spring. According to the classification standard of modern climatology in China, the daily average temperature rises steadily to above 22℃, starting in summer.

Changxiajian Sam sun

The proverb "See three fresh things in long summer" is the custom of tasting new things. In the long summer, many crops produced in that year can be picked and put on the market. The meaning of "three fresh" can be divided into "three fresh in the ground", "three fresh in the tree" and "three fresh in the water". Sanxian medicinal materials are widely spread, but the varieties are different in different regions, and the common ones are amaranth, broad bean and garlic seedling. Sanxian trees are cherry trees, pistachio trees and apricot trees, but plums and Chinese toon heads are listed in some places. There are also different sayings of water three fresh in different areas, mainly including Zhou fish, sea lion, puffer fish, Shao fish, yellow croaker, whitebait and scale fish. No matter how it changes, shad will always be the main variety of water three fresh. Every year around the long summer, shad flock from Haikou to the river to lay eggs. "There were shad in early summer, but there were not many months, so it was named" shad "(Compendium of Materia Medica of Li Shizhen). The shad is rich in fat, delicate and tender, and now it is rare.

China has attached importance to the long summer solar terms since ancient times. In the history of the Zhou Dynasty, every summer, the emperor personally led hundreds of civil and military officials to hold a grand "welcoming summer" ceremony in the suburbs, and ordered Si Tuleideng and other officials to go to various places to encourage farmers to seize Xia Geng. Besides tasting the three delicacies, there are many other long summer customs. In some places, eating moldy tofu is a fashion. According to legend, if Chang Xia eats moldy tofu, his bad luck will leave him. In some places, on the same day of long summer, every household should eat "five-color rice" made of white rice with red beans, soybeans, black beans, mung beans and mung beans, which is called "long summer rice".

On the day of long summer, there is also the custom of weighing people. After eating the long summer meal, adults and children should weigh themselves with their hands. Pay more attention to "fat" than "meat".

Like beginning of spring, the first solar term in 24 solar terms, the annual summer officially begins with the long summer. Long summer ranks sixth among the twenty-four solar terms, and every year on May 5th, 6th and 7th, the sun reaches 45 degrees of the Yellow Meridian. "Twenty-four solar terms" note: "Summer is fake, and everything is fake at this time." In the Book of Rites and the Moon Order, it is used to "sound like a wisp of marriage, stretching out; Four vivid natural scenes, such as Wang Guasheng and Kucai Xiu, describe Xia Jin. Old spring and early summer, everything is flashy. According to climatology, the average temperature for five consecutive days is higher than 22 degrees Celsius, which is long summer. However, China has a vast territory, and the climate between north and south is very different. At this time, some places in the south have entered the hot summer ahead of schedule, while most areas in the north are still in the late spring season of "no one asks the fallen flowers outside the door, and Ran Ran is all over the world". Yi Wei also has a saying called "See electricity in the long summer", but in the south, as early as 20 days ago, thunderstorm weather has already appeared.