What is spring?

Spring, also known as spring, is the first of the four seasons, which refers to the period from beginning of spring to long summer, including solar terms such as beginning of spring, rain, fright, vernal equinox, Qingming and Grain Rain. This is the season when everything comes back to life. The Gregorian calendar in the northern hemisphere is March-May, and in the southern hemisphere (such as Australia) it is September-165438+ 10. In meteorology, the beginning of spring is that the average temperature is above 10℃ for five consecutive days. In spring, the climate is warm and mild, and there is rain in most inland areas of China, where everything germinates and the climate is changeable.

In spring and March, it is said that the world is born, everything is glorious, lying late and getting up early, walking (walking) in the court, and walking slowly (meaning unrestrained) to do life. Living without killing, giving without taking, rewarding without punishment, this is the response of spring and the way to keep fit. Otherwise, it will hurt the liver, it will be cold in summer and there will be few elders.

Chunyang: It is named after the warm and beautiful sunshine in spring. Chen Ziang's poem "If you don't return in the daytime, it's dusk in spring". It's a poem about Chunyang.

Yangchun: the laudatory name of spring. Among the poems of Li Bai, a poet in the Tang Dynasty, there is a poem "Spring beckons me to smoke".

Fangchun: It is named after the sprouting of vegetation in spring, the rebirth of fragrant grass, and the blooming of flowers in full of green. Lu Ji's poem "Strong heart in autumn, beautiful clothes in spring". Write the characteristics of Fangchun into the landscape.

Stupidity: In ancient times, "spring" and "stupidity" agreed to speak at the same time. When spring comes, insects will move, and both shapes and sounds will know.

Youth: named after the green vegetation in spring. Du Fu's poem: "In that green spring day, I sang loudly, I drank heavily, and that green spring day took me home".

Sunny sun: I won this honor because of the sunny spring. In Hua Guangsheng's Collection of Folk Songs in Qing Dynasty, there is a saying: "Snow is shining in spring": "On a sunny day, the wind is swaying and the willows are swaying, blending".

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In spring, the northern hemisphere of the earth began to tilt towards the sun, receiving more and more direct sunlight, so the temperature began 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 bloom. Hibernating animals wake up, many animals with eggs for the winter hatch, and birds begin to migrate, leaving the wintering ground for breeding grounds. Many animals are in estrus during this period, so China also calls spring the season of "the revival of everything". The changes of temperature and biology in spring also affect people's psychology and physiology.

Spring is the first season in a year, and there are many ways to divide the four seasons. In daily life, people usually regard the arrival of beginning of spring solar terms as beginning of spring, and beginning of spring is defined from the perspective of astronomy. Meteorological departments generally divide the solar calendar into four seasons, and March-May is spring. However, this division method has a disadvantage. According to this method, March belongs to spring in China. At this time, although the Yangtze River basin is pink and green, and the spring is full, Heilongjiang Province is still ice and snow, and Hainan Island has already had the breath of summer.

Therefore, meteorologists have formulated a standard for the division of four seasons that conforms to the natural scene as much as possible. Taking the five-day average temperature as the standard, it enters spring when the five-day average temperature passes 10℃ after winter, and when the temperature is higher than 22℃, it means late spring and early summer.

Spring Baidu encyclopedia