When will it start next spring?

As one of the "twenty-four solar terms", beginning of spring, like Changsha, beginning of autumn and beginning of winter, reflects the changes of all seasons. Beginning of spring means that the winter when everything is closed has passed, and it has begun to enter the spring when everything is warm and sunny.

Due to China's vast territory and the disparity in climate, the specific climatic significance of "Li" does not apply to all parts of the country, and the corresponding area is Lingnan area located on the Tropic of Cancer.

The dividing line between winter and spring is on the line from Guilin, Guangxi to Ganzhou, Jiangxi. When spring begins (the longitude of the sun reaches 365,438+05), the area south of this line already has the breath of spring; However, 93% of China's land area is still in winter, and spring often comes to Heilongjiang in Grain Rain or in the long summer. "Li" is just a reference in many areas.

The current "fixed gas method" solar terms are also based on precise astronomical calculations. The "twenty-four solar terms" divided by the method of "fixing qi" (used since 1645), each solar term corresponds to a certain position reached by the sun on the ecliptic every time it runs 15, reflecting the influence of the sun on the earth.