What does the first frost solar term mean?

1, the first frost, the first 18 of the 24 solar terms, is the last solar term in autumn, marking the transition from autumn to winter. As the saying goes, "the first frost kills a hundred herbs". After the first frost, the plants gradually lost their vitality and the earth was desolate.

2. Every year around 65438+1October 23rd, when the sun reaches 2 10 degrees, it is the first frost solar term. The main feature of the first frost is that "qi stagnates at the beginning of frost, and yin begins to coagulate". In ancient times, the first frost was divided into three stages: one stage was when jackals sacrificed animals; Second, the vegetation is yellow; Three stings are salty. This means that after the first frost, jackals and other animals began to store food for winter; The vegetation is yellow and the leaves are falling; The hibernating stinger hung his head and prepared to spend the winter in the cave.

3. Frost is a white crystal produced by the condensation of water vapor in the atmosphere on the ground and objects. Frost means that the lowest ground temperature is below 0℃, and crops may suffer from freezing injury. The first frost in autumn is called the first frost, which is the beginning of a year's frost period. China has a vast territory and complex terrain, and the first frost dates vary greatly from place to place.