What is phenology?

To talk about solar terms and phenology, it is natural to talk about phenology first. Phenology is a science that studies the relationship between seasonal phenomena of animals and plants in nature and periodic changes of the environment. It is mainly to observe and record the growth and decline of plants, the migration and reproduction of animals and the changes of the environment in a year, compare their differences in time and space distribution, explore the periodic law of the development and activities of animals and plants and their dependence on the surrounding environmental conditions, and then understand the law of climate change and its influence on animals and plants. It is a borderline subject between biology and meteorology.

The influence of environment on the growth and development of animals and plants is an extremely complicated process. The instrument can only record some individual factors of environmental conditions at that time, while phenology is a comprehensive reflection of various environmental factors in the past and now. Therefore, phenology can be used as an indicator of environmental factors and can also be used to evaluate the overall impact of environmental factors on animals and plants.