What does Chang Xia have to say?

What did Chang Xia say? The harvest is basically certain.

First, the origin of the long summer:

Long summer is a knowledge system formed by the ancients by observing the movement of celestial bodies and understanding the changing laws of seasons, climate and phenology in a year. The ancients recorded the long summer: "Dou refers to the southeast, Wei refers to the long summer, and everything has grown up since then, hence the name long summer."

That is to say, when the bucket handle of the Big Dipper points to the southeast, it is in the long summer. At this time, animals and plants began to flourish, fruits matured and animals began to grow up.

Second, the characteristics of long summer:

In astronomy, every year when the sun reaches 45 degrees of the Yellow Meridian and the bucket handle of the Big Dipper points to the southeast, it is the long summer solar term, that is, May 05-07 of the Gregorian calendar every year. During this period, the daily average temperature began to rise steadily to above 20℃, and the rain began to increase.

Long summer has not yet entered summer, but it is said that it will bid farewell to spring and reach the turning point of summer. People are accustomed to regard long summer as an important solar term when the temperature rises obviously, the summer heat comes, thunderstorms increase and crops enter the peak season.

In most parts of the country, abundant sunshine, suitable temperature and abundant rain in the long summer provide necessary conditions for plants and make crops grow well. However, in the middle and lower reaches of the Yangtze River and South China, because of the rapid increase of rainfall, it has also entered the peak period of the first flood season, and the highest annual water level often appears during this period. There is a folk saying that "the long summer is full, the small one is full, and the river is full". Therefore, the long summer has turned these places into the beginning of flood control.

Third, the moral of the long summer:

Judging from the implication of long summer, long summer is a sign that people welcome the warming weather, because it is usually hot at this time. In addition, there are representatives in Long Summer who bid farewell to spring and welcome summer.

In fact, the long summer has another important implication, which means that agriculture is about to get busy. People are accustomed to regard long summer as an important solar term when the temperature rises obviously, the summer heat comes, thunderstorms increase and crops enter the peak season. Long summer is also the beginning of Mitsuki, which is an important solar term, marking the peak season for all things to grow.

Generally speaking, the moral of long summer is that summer officially comes, animals and plants begin to mature, and farmers begin to harvest the hard work of the year.