What season is night dew?

It is usually autumn when the dew is heavy at night. Cold dew, dew increase, temperature decrease. The dew on the ground is about to condense into frost. Cold dew is the fifth solar term in autumn and the seventeenth of the twenty-four solar terms. This is a symbol of cold weather.

Mechanism: In the evening or at night, due to radiation cooling, the air layer near the surface also cools down. When the temperature drops below the dew point, that is, the water vapor content in the air is supersaturated, there will be water vapor condensation on the ground or the surface of the object.

If the dew point temperature is above 0℃, tiny water drops will appear on the ground or ground objects, which is called dew. Sometimes the dew that has been generated freezes into ice beads because the temperature drops below 0℃. This situation is called frozen dew, which actually belongs to the category of frost.

Dew can adjust the growth environment of forest plants;

The growth environment of forest plants includes the environment outside the forest and the environment inside the forest, which mainly refers to factors such as temperature, humidity, moisture, wind speed and heat. The regulation of dew on the growth environment of forest plants is mainly manifested in the regulation of these factors.

Similar to precipitation, the forest canopy first intercepts a part of dew, the other part of dew directly settles on the forest surface through the forest window, and less dew directly drops through the canopy leaves. Because dew first settled in the canopy, the regulation of dew on the microenvironment of forest plants first occurred in the canopy, and then adjusted the microenvironment in the forest.