Geographical knowledge contained in the 24 solar terms

The equinoxes (vernal equinox and autumnal equinox), equinoxes (summer solstice and winter solstice) and equinoxes (beginning of spring, Changchun, beginning of autumn and beginning of winter) indicate that the reaction season is directly related to the latitude of direct sunlight.

The five solar terms of slight summer heat, great summer heat, slight cold and severe cold are used to indicate the degree of cold and summer heat in different periods of the year, that is, the degree of heat.

Xiaoman and awn species reflect the maturity and harvest of related crops ~ crop harvest directly reflects the local climate; Sting and Qingming reflect natural phenology.

In addition, each solar term can reflect the direct latitude of the sun and the revolution of the earth.

The twenty-four solar terms were formulated by ancient people according to the change of the position of the earth on the ecliptic. The earth's orbit around the sun was named "ecliptic" by the ancients, also known as "ecliptic". The ecliptic is divided into 24 equal parts, separated by 15, forming 24 solar terms. The 24 solar terms are actually 24 solar terms, 2 per month. The twenty-four solar terms take the earth's revolution around the sun as a cycle, which basically summarizes the laws of natural phenomena such as the different positions of the sun on the ecliptic at different times of the year, the accurate time of cold coming and summer going, rainfall and snowfall.