What does the arrival of frost in early 2020 mean? Is it the same as frost?

Most people think that the first frost is a kind of weather, but in fact, the first frost is one of the 24 solar terms in China, so what does it mean to be healthy in early 2020? Is the first frost and frost the same meaning?

What does the health of frost mean in early 2020? It means falling.

Dew begins to appear in the White Dew sooner or later, and it is colder when it is cold and cold. In the first frost solar term, the temperature drops, and the water vapor in the air condenses into hexagonal frost flowers when it approaches the ground. When it is close to plants or the ground, frost flowers will stick to it, and it looks like it is wrapped in ice.

Do the first frost and frost mean the same thing? number

The first frost is the eighteenth of the twenty-four solar terms, the last solar term in autumn and the transitional solar term from autumn to winter. Every year on the 23rd or 24th day of Gregorian calendar 10 year 10, the first frost solar term is when the sun moves to 2 10 degrees of the longitude of the Yellow River.

On the surface, the first frost seems to be getting colder and colder, and it begins to frost. To be exact, frost does not fall from the sky, but is white loose ice crystals formed by condensation of water vapor in the air near the ground or on the ground. In the middle and lower reaches of the Yellow River, the first frost usually appears in late June from 65438+ 10 to early October165438+10, which is completely consistent with the solar terms of the first frost. With the arrival of the first frost, crops that are not hardy have been harvested or will soon stop growing, and the vegetation has begun to turn yellow, showing a scene of late autumn.

Frost means that during the growing season, the surface temperature of soil or the temperature near plant canopy drops below 0℃ for a short time at night, and the surface temperature of plants drops rapidly, so that the water in plants freezes, the metabolic process is destroyed, and cells are squeezed by ice cubes, causing harm. When frost occurs, plants are hurt because of low temperature, not just because frost hurts plants. If the relative humidity of the air is low, you may not see the frost, and it will also frost. Usually, people also call frost-free frost black frost.

It can be seen that first frost and frost are two different concepts. The first frost is only a solar term, and the first frost usually appears in the middle and lower reaches of the Yellow River in this solar term. Frost is related to plant damage. Where there are no plants, there will be no frost.