These natural phenomena are referred to as phenological phenomena by working people in ancient China. Phenological knowledge has a long history in our country, and it can be found in many farmers’ proverbs which were handed down from the ancient times. In modern times the phenological knowledge is used to study agriculture production and then develops into a science, phenology. It keeps a record of the growth and development of plants and animals, such as the blossoming of peach flowers or the returning of swallows, and consequently facilitates our understanding of the climate change as time passes and its impacts on flora and fauna.