What does it mean that the land will not be sealed for only three or two days due to heavy snow?

It means that it will snow three or two days after the heavy snow in the solar terms.

After the heavy snow solar term, as the amount of snowfall increases, the temperature begins to drop significantly. The night temperature in many areas in the north will drop to about minus ten degrees after the heavy snow solar term. The daytime temperature It will hover around three to four degrees above zero. As the ground temperature drops, the water in the river will also start to freeze as the temperature drops below zero.

Because snowfall weather will increase after the heavy snow solar term, and the amount of snowfall will also increase. Therefore, after the heavy snow solar term, you can not only see snow on the ground, but also in the frozen rivers. figure.

Extended information:

It is often said that "auspicious snow heralds a good harvest". Severe winter snow covers the ground, keeping the temperature on the ground and around the crops from dropping too low due to the cold wave, creating a good overwintering environment for winter crops. The nitrogen content in snow water is five times that of ordinary rainwater, which has a certain fertilizing effect. So there is a saying: "This year, you will be covered with a three-layer wheat quilt, and next year you will sleep with a steamed bun on your pillow."

"Light snow seals the land, heavy snow seals the river", the north has the natural landscape of "thousands of miles of ice, thousands of miles of snow drifting", and the south also has charming pictures of "flying snowflakes and silvery sky". During the heavy snow season, the ice in the river is frozen, and people can skate and play as much as they want.

People's Daily Online - Heavy snowfall during the solar term: snow falls in mid-winter. How much do you know about heavy snowfall?