Which areas in the 24 solar terms mainly reflect the climatic characteristics and general situation of farming?

The twenty-four solar terms mainly reflect the climate characteristics and agricultural situation in the Central Plains of China. Because the main political, economic, cultural and agricultural activity centers in China are mostly concentrated in the Central Plains of the Yellow River Basin.

Related introduction:

Twenty-four solar terms refer to the special festivals in the trunk and branch calendars that express seasons, phenology, climate change and establish "December construction", which were used to guide farming in the Han Dynasty.

Twenty-four solar terms are the product of ancient farming civilization, and are the knowledge system formed by ancient ancestors following the farming season and understanding the changing laws of seasons, climate and phenology in a year by observing the movement of celestial bodies. Twenty-four solar terms divide the sun's annual trajectory into 24 equal parts, and each equal part is a solar term, reflecting the influence of the sun on the earth.

In the field of international meteorology, the 24 solar terms are known as "the fifth invention of China". 20 1 1654381October 30th, the twenty-four solar terms were officially listed in the representative list of UNESCO and human intangible cultural heritage.

"Twenty-four solar terms" reflect the annual apparent motion of the sun, so the date of "Twenty-four solar terms" in the Gregorian calendar is relatively fixed, with a difference of 1-2 days. The earth revolves around the sun once every 365 days at 6: 09 and 10 second (exactly) and rotates once every 24 hours.

Because the orbital plane of the earth's rotation is not the same as the equatorial plane, but maintains a certain inclination angle, the position of direct sunlight on the earth is different all year round. In the northern hemisphere, the sun shines directly on the Tropic of Cancer, which is called the summer solstice in astronomy. When the sun shines directly on the tropic of Capricorn, it is called the winter solstice.