Traditional Culture Encyclopedia - The 24 Solar Terms - Climatic phenological season of solar terms
Climatic phenological season of solar terms
The second category reflects climate characteristics. There are five solar terms that directly reflect the summer heat: slight summer heat, great summer heat, summer heat, slight cold and severe cold, which are used to indicate the degree of cold and summer heat in different periods of the year and the imminent passing of the summer heat. There are four solar terms that directly reflect the precipitation phenomenon: rain, Grain Rain, light snow and heavy snow, indicating the time and intensity of rainfall and snowfall. In addition, although the three solar terms, White Dew, Cold Dew and First Frost, are the phenomena of water vapor condensation and condensation, they also reflect the process of gradual temperature drop and the degree of cooling in each solar term. First, the temperature began to drop, and more water vapor condensed; After that, the temperature dropped even more, not only exposed to the sun, but also cooled down, but it was not frozen; Finally, the temperature drops below zero degrees Celsius, and the water vapor condenses into frost. From the perspective of agricultural production, these three solar terms are concrete and vivid, with their heat meaning greater than their water meaning.
The third category reflects phenological phenomena. Xiaoman and awn species reflect the maturity and harvest of related crops; Frightening and Qingming reflect natural phenology, especially stinging. It uses the first thunder in the sky and the revival of underground stinging insects to inform everything in the world that spring is coming back to the earth.
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