Guess which of the following phenomena will occur when it rains?

When it rains, vegetation will germinate.

Rain is the second of the 24 solar terms. Finger-pointing yin; The sun reaches longitude 330; February 18-20 of the Gregorian calendar every year. Rain solar term means the beginning of rainfall, which is mostly light rain or Mao Mao rain. Proper precipitation is very important for the growth of crops, and it is the reflection of farming culture on festivals. Entering the rain solar term, there is no breath of spring in the northern part of China, but most places in the south are full of spring and a scene of early spring.

Spring is naturally inseparable from the moisture of boiling water. Before and after the rainy season, plants germinate. "When it rains, everything is beautiful." Spring rain moistens things silently, so that dead trees meet spring and seeds germinate. The natural phenology of rain solar terms in China is quite different between north and south. There is no smell of spring in the north, but most parts of the south are already the scene of early spring.

Rain is one of the twenty-four solar terms. There are four seasons in a year, three months in spring, summer, autumn and winter, and two solar terms in each month. Each solar term has its own unique meaning. Rainwater solar terms usually mean that rainfall begins and gradually increases. 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. "

There are phenological descriptions in Yizhoushu, such as "Hongyan is coming" and "vegetation sprouting after rain". The water that nourishes the growth of all things comes from rain. As the saying goes, "Spring rain is as expensive as oil", and everything needs rain to moisten it, so people often regard spring rain as particularly precious. Many of the 24 solar terms directly reflect precipitation, which shows that China ancestors attached great importance to precipitation.