What are the three stages of summer? What are the explanations of the three stages of "Great Summer"?

Through long-term observation of nature, the ancients in China summed up the following laws: five days are weather, three days are qi, six days are hours, and four days are ages, so the twenty-four solar terms of a year are divided into seventy-two solar terms, and each solar term has three kinds of weather, and each weather corresponds to a phenological phenomenon. So today, let's learn what the third phase of the Great Summer is and how to explain it.

The ancients divided the great summer heat into three periods, namely: "a rotten grass is a firefly;" Second, wait for the soil to moisten and cool off the heat; It will be fine when it rains. " Summarize the corresponding phenological phenomena in each period, that is, the "reactions" in the three periods of great summer heat, including animal reactions, plant reactions and natural phenomenon reactions.

After a while, the rotten grass turned into a firefly. "Gewulun" said: "Fireflies are transformed from rotten grass and rotten bamboo roots." Also known as. In ancient times when science was underdeveloped, people could only guess and infer those unexplained natural phenomena by subjective consciousness.

In fact, rotten grass for fireflies is about campfire insects laying eggs. Fireflies usually lay their eggs on grass roots near the water surface in summer, and their larvae are buried and pupated, and then become insects in the next spring. The ancients mistakenly thought that fireflies were changed by rotten grass itself, which was just an illusion in their eyes.

In this hot season, people hide in the shade, while fireflies hatch their shells at this time. Although its life is only a short summer, it chose to come to this world in the hottest season, and its spirit of facing difficulties is really admirable. The fluorescent spots at night bring infinite romance and coolness in the heat.

Second, the soil is hot and humid. In the Book of Rites, it is said that "the soil moistens the summer heat", that is, the soil is infiltrated and the air is hot and humid-the rainfall is large, the soil and air are moist and the temperature is high, which is the moment when crops grow wildly. Mr. Wen Yiduo wrote in "Summer": "The loofah in our garden climbed the tree, and several small silver gourds hung on the vines, and the newborn cucumbers were as small as olives ..." It was very interesting.

Summer, or humid summer, refers to midsummer. There is also "Su Wenliu and Jacky Ji Da Lun": "Four Qi, summer solstice, rain, cold and heat come together." This shows the poison of summer heat. People in "sauna days" are upset; "Dirty heat" makes people sit in summer, the middle is hot and wet, like a beast with two claws, mercilessly eroding people's pleasure and health. But fortunately, the growth of crops makes people full of hope for life.

Third, when it rains heavily. Yizhoushu said: "The earth moistens the summer heat. In five days, it will rain cats and dogs, "he said." It rains sometimes, and the country is ungrateful. " The summer heat is the period with the most sunshine and the highest temperature in the basin in a year. It is also the period with the most rain, the most common thunderstorm and the most concentrated and frequent high temperature days in the west of the basin. Therefore, summer is also the season of thunderstorm weather.

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