The big cold is coming. As soon as the big cold is over, 24 solar terms will start again. The first solar term is the beginning of spring, which is enough to see how important it is. At the beginning of spring, everything recovers. So is it right that the beginning of spring is the beginning of spring?
What does spring symbolize? Is spring the beginning of spring
Beginning of spring
Li is the beginning of spring. Since the Qin Dynasty, spring has been the beginning of spring in China. Spring is divided from astronomy, but in nature and people's mind, spring is warm, birds are singing and flowers are fragrant; spring is growth, cultivation and sowing. In climatology, spring refers to the period from 10 ℃ to 22 ℃ of the average temperature (5 days for a period).
At the beginning of spring, people obviously feel that the day is long and the sun is warm. Temperature, sunshine and rainfall are often at the turning point of the year, tending to rise or increase. In order to accelerate the growth of spring crops and increase the water consumption of rape and wheat jointing, we should timely irrigate and topdressing to promote the growth. The proverb reminds people that it's time to get up early and go to bed late in the spring. Although spring has been established, most parts of South China are still cold and snowy, but it is too late for spring, so it's a scene of flying flowers through court trees. These climatic characteristics should be taken into account in the arrangement of agricultural production. Where do people often look for the information of spring? The buds sticking out of the wicker are tender than gold and soft than silk. The grass leaping out of the soil, waiting for the spring wind to blow again. And those who work hard in the fields to capture the new harvest are creating the real spring with their hands.
The poem said: 'the east wind brings rain and the west wind, and the earth is warm. Su Meng of all things wakes up with mountains and rivers, and the farmers plan to plough again at the beginning of the year. "The beginning of spring" by zuohe river.
Spring in the real sense
Beginning of spring
In spring, the northern hemisphere of the earth begins to incline to the sun, which is exposed to more and more direct sunlight, so the temperature begins to rise. As the ice and snow melt, the water level of the river rises. In spring, plants begin to sprout and grow, and many flowers open. Hibernating animals wake up, many of them hatch, and birds begin to migrate, leaving the wintering ground to the breeding ground. Many animals have estrus during this period, so China also calls spring the season of "everything revives". The changes of temperature and biology in spring also have influence on people's psychology and physiology.
Spring is the first season of the year. There are many ways to divide the seasons. In daily life, people usually regard the arrival of spring solar term as the beginning of spring, which is defined from the perspective of astronomy. The meteorological department generally divides four seasons according to the solar calendar, and March to May is spring. However, there is a drawback in this method. In March, our country belongs to spring. At this time, although the Yangtze River Basin is peach red and willow green, it is a kind of spring light, Heilongjiang Province is still cold and icy, while Hainan Island has the smell of summer.
Therefore, meteorologists have developed a four-year division standard that is as consistent as possible with the natural scene. According to the standard of 5-day average temperature, the average temperature of the next five days in winter starts to enter spring when it passes through 10 ℃, and when the temperature is higher than 22 ℃, it means the end of spring and the beginning of summer.