What are the two solar terms of slight cold and great cold?

"A slight cold is followed by a severe cold, and the year is over in a blink of an eye." 20 1810.5, people will usher in the annual slight cold solar term, and then the coldest and driest days of the year will begin. At the same time, when thousands of families buy new year's goods and prepare for the Spring Festival, there are busy scenes everywhere, but everywhere is full of joy and hope. Then let Lao Huangli introduce to you which two solar terms are slight cold and great cold.

Slight cold and severe cold are the last two of the 24 solar terms, and they are also the coldest and least rainy solar terms in a year. As the saying goes, "a slight cold makes ice hockey." After entering the slight cold, the climate in China began to enter the coldest period of the year.

Slight cold is the season that reflects the temperature change, cold is cold, and small is the degree of cold. The ancients in China thought that cold air accumulated over time as cold, because the slight cold was still in the last few days of February 9, and the degree of cold was not extreme. The slight cold in winter coincided with the slight heat in summer, so it was called slight cold.

As for the great cold, Time and Time says: "Great cold is the middle, and the upper form is slight cold, so it is called great cold ... extremely cold, so it is called great cold." "Twenty-four solar terms" said: "December solar terms, the initial cold is still small, so the clouds. It will be big in half a month. " In other words, in the Yellow River basin, the great cold is colder than the slight cold.

The fifteen days of slight cold can be divided into three periods, that is, "the first is when the geese are heading north, the second is when the magpies start to nest, and the third is when the pheasants start to sing", which corresponds to the meteorological changes of the slight cold solar terms with the changes of poultry habitats.

As soon as the geese headed north, the ancients thought that the geese among migratory birds migrated with the spirit of the sun. At this time, the spirit of the sun had moved, so the geese began to fly back to their hometown from south to north. "Magpies start to build nests after waiting for the second time", magpies are magpies and magpies are magpies. "Mouth, wait until the second time, the magpie feels that the sun is changing, and begins to nest, ready to breed the second generation; Three waiting cones begin to bear ",which means singing." At this time, the pheasant also felt the growth of Yang. So it made a long distance call.

The severe cold that comes around 65438+1October 2 1 every year is a solar term that reflects the process and degree of temperature rise and fall. Great cold, as its name implies, is extremely cold weather, but in fact, according to China's long-term meteorological records, slight cold is the coldest time of the year in most parts of China.

In ancient China, the Great Cold was divided into three stages, namely, "the first stage of chicken lactation; Second, the symptoms of bird disease; Three times, water is strong. "That is to say, in the great cold solar terms, chicks can be hatched; However, birds like Eagle Set are in the state of the strongest predation ability, circling in the air to feed and replenish their energy to resist the cold; In the last five days of the year, the ice in the water has frozen to the center of the water, and it is the strongest and thickest.

In addition, the climate of Hua Xinfeng in the severe cold is "Daphne, Orchid and Alum (born in Jiangnan)". As the saying goes, "it's freezing cold, it's freezing cold." At this time, like the slight cold, it is also the coldest period of the year in the vast areas of China. The wind is strong, the temperature is low, and the snow on the ground does not melt, showing a cold scene of ice and snow.