This paper introduces the meaning of the 24 solar terms and beginning of winter. The solar terms in beginning of winter are briefly introduced.

1, Li, also means that winter begins from now on. Winter means the end, which means that the crops should be harvested after harvest. China regards beginning of winter as the beginning of winter.

2. The time point is between165438+1October 7-8 every year, that is, the sun is located at 225. At this time, the earth is located at declination-16 19, and the noon sun height in Beijing is only 33 47. After beginning of winter, the sunshine time will continue to shorten, and the height of the sun will continue to decrease at noon. China people regard beginning of winter as beginning of winter, and during their stay in beginning of winter, it is necessary to supplement food to spend the severe winter.

3. Before and after winter, the precipitation in most parts of China decreased obviously. The land in northern China is frozen, and agricultural and forestry crops have entered the wintering period. The "Sanqiu" in the Jianghuai region of China is drawing to a close, but the southern region of China needs to quickly plant late-season winter wheat and transplant rape, and the southern region is the best time to plant wheat. In addition, after winter, the air generally becomes dry and the soil water content decreases. At this time, China began to pay attention to the fire prevention work in forest areas.