Traditional Culture Encyclopedia - The 24 Solar Terms - The origin of rain solar terms?
The origin of rain solar terms?
Wu Cheng's book "Twenty-four Solar Terms" in the Yuan Dynasty said: "The first month is aquatic in the sky, and spring is wood. However, people who grow trees must have water, so it rained successfully in beginning of spring. If the east wind melts, it will disperse into rain. " Rain means that the spring breeze gradually blows all over the earth, the ice and snow melt, and even the air in the north begins to become moist, showing a thriving scene everywhere.
Meteorological changes of rainwater
From the meteorological point of view, the highest temperature in most parts of China can generally rise above 0℃ after the rain. Although it has entered the spring rain solar term, there is no breath of spring in most parts of northern China.
The average temperature in many areas of South China is above 10℃. At this time, rape, winter wheat, etc. Generally, it will turn green, which requires higher moisture. As the saying goes, "Spring rain is as expensive as oil", and suitable precipitation is very important for the growth of crops. At this time, the precipitation in North China, Northwest China and Huanghuai areas is generally less. If there is little rain in early spring, timely irrigation after rain is beneficial to crop growth.
Beijing Daily-How did the rainy solar terms come from?
Above content reference: Baidu Encyclopedia-Rain
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