What changes have taken place in nature in autumn?

The rice in the field is ripe, the leaves turn yellow, and the geese begin to migrate.

Autumn is one of the four seasons. In China, traditionally, "beginning of autumn" in the 24 solar terms is taken as the starting point of autumn. Entering autumn means that rainfall and humidity tend to decrease or decrease, and everything in nature begins to mature from lush.

solar term

Beginning of autumn: The sun is located at longitude 135 degrees, and will intersect on August 7-9. Rainfall, storm, temperature and humidity tend to decrease or decrease.

Summer: The sun is located at the longitude of the Yellow River 150 degrees, and it is in the internode on August 22-24. The summer heat ended here, and the rainfall gradually decreased.

Millennium: The sun is located at 0/65 degrees of the yellow longitude/kloc, and the solar term passes on September 7-9. Dry, the temperature difference between day and night is large, and the weather gradually turns cold.

Autumnal Equinox: The sun is located at 0/80 degrees of the Yellow Meridian/KLOC, and the solar term passes on September 22-24. The sun shines directly on the equator, and the length of day and night in the northern and southern hemispheres is equal. The temperature difference between day and night gradually increases, and the temperature drops day by day.