What is the Great Heat solar term? What is the origin of the solar term Great Heat?

What is the Great Heat solar term? What is the origin of the solar term Great Heat?
Introduction: The 24 solar terms are one of the timekeeping calendars in our country in ancient times, and its existence plays an important role in the development of farming culture. The Great Heat is one of the 24 solar terms, so what is the Great Heat? What is the origin of the solar term Great Heat? Let’s follow the editor to find out. Mr. Shui Mo has carefully compiled a special topic about the sixth month of the lunar calendar. Friends who want to know more about the sixth month of the lunar calendar can read the relevant articles in this topic for reference!

What is the Great Heat solar term?

Great Heat is one of the 24 solar terms in the lunar calendar, when the sun is at 120° of the ecliptic longitude. During the Great Heat period, Chinese people have the customs of drinking Fu tea, drying Fu ginger, and burning Fu incense.
"Collected Explanations of the 72 Seasonal Changes" says: "The Great Heat is in the middle of June. Heat is hot and can be divided into small and large heat. The beginning of the month is small, the middle of the month is big, and the heat is still big now." Its climatic characteristics are: "When the Big Dipper points to Bing, it is the Great Heat. At this time, the weather is much hotter than the Lesser Heat, so it is named the Great Heat." The Great Heat solar term is around the middle of the "Three Hot Days", the hottest period of the year, with the highest temperature and the fastest growth of crops. At the same time, various meteorological disasters such as drought, flood and wind disasters are also most frequent in many areas.

The Origin of the Great Heat Season

The "Great Heat" solar term occurs between July 22 and 24 every year when the sun reaches 120° of the ecliptic longitude. "Great Heat" and "Less Heat" are both festivals that reflect the degree of heat in summer. "Great Heat" means extreme heat. "Collected Explanations of the 72 Seasonal Changes" states: "In the middle of June, ... heat is divided into small and large heat. The beginning of the month is small, and the middle of the month is large. Now the heat is still large." This is around the "middle of the dog days", when most parts of the country enter the hottest period of the year and it is also the fastest growing period for warmth-loving crops. However, natural disasters such as droughts, floods, and typhoons occur frequently, and the tasks of drought resistance, flood drainage, typhoon prevention, and field management are very heavy.
In ancient my country, the Great Heat was divided into three stages: "The first stage is that rotten grass turns into fireflies; the second stage is that the soil becomes moist and the heat is sultry; the third stage is that heavy rains occur from time to time." There are more than 2,000 species of fireflies in the world, divided into aquatic and terrestrial. The terrestrial fireflies lay eggs on dead grass, and during the Great Heat, the fireflies eggs hatch, so the ancients believed that fireflies turned from rotten grass; the second stage is that the weather starts to become hot and humid, and the land is also very humid; the third stage is that heavy thunderstorms often occur, and these heavy rains reduce the heat and humidity, and the weather begins to transition to the Beginning of Autumn.
Summary: Through the above article, we have gained certain answers to questions such as what is the Great Heat solar term and what is the origin of the Great Heat solar term. I hope it can provide a reference for everyone!

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