What do the three solar terms mean? The meaning of three solar terms.

1, in ancient times, five days was a waiting period and a solar term was fifteen days, so it was divided into three waiting periods. 365 days a year (average year) is 72 days, corresponding to 24 solar terms. Each climate corresponds to a phenological phenomenon, which is called climate response. Among them, the plant climate should be germination, flowering, fruiting, etc. Animals should start vibrating, singing, mating, migrating, etc. Abiotic climate should include initial freezing, thawing and thunder.

2. The time series changes of 72 climate events reflect the overall situation of climate change in a year.