Millennium phenomenon

The phenology of the Millennium is as follows:

Millennium is a solar term in autumn, which marks the gradual departure of summer and the early stage of autumn. The phenological phenomena of the Millennium mainly include cooling, increasing morning dew and autumnal equinox.

1. Millennium temperature change

In the Millennium, the temperature drops gradually, especially in the morning and evening, which will obviously make you feel cool. This is because the solar altitude angle decreases in the Millennium season and the radiation cooling effect increases at night. People will feel that they need to add an extra coat to keep warm when they get up in the morning.

2. Increased morning dew

With the arrival of the Millennium, morning dew will gradually increase. Morning dew means that the humidity in the air reaches saturation at night, and the water vapor condenses into tiny water drops on the ground or plant leaves. Due to the large temperature difference and humidity in the Millennium season, especially the low temperature at night, water vapor is more likely to condense into morning dew.

3. Division of vernal equinox

Millennium is one of the 24 solar terms, which is closely related to the autumnal equinox. The autumnal equinox is the middle of autumn, which means that the time of day and night is equal. The autumnal equinox is 3-5 days after the Millennium. At the autumnal equinox, the sun shines directly at the equatorial point of the earth, and the northern hemisphere begins to enter autumn, and the sunshine time is gradually shortened.

4. Crop growth and harvest

The Millennium season has an important influence on the growth and harvest of crops. As the weather gets colder, some summer crops will mature and begin to harvest, such as corn and rice. Plant some autumn crops, such as wheat and soybeans. At this time, farmers need to choose suitable crops for harvesting and planting in time to ensure the yield and quality of crops.

5. The connection between the Millennium and nature

Millennium season is not only a change of nature, but also a part of people's daily life. By observing the phenology of the Millennium, people can know the arrival of autumn, adjust their clothes and diet, and make better use of the characteristics of the Millennium season to cultivate and harvest crops. The arrival of the Millennium shows the close relationship between nature and human life.