Grain Rain, Changxia, Grain Rain, what does Changxia mean?

1, Grain Rain, which means "Rain gives birth to hundreds of valleys". At this time, the precipitation has obviously increased, and the seedlings and new crops in the field need the rain most. With sufficient and timely rainfall, cereal crops can thrive. "when it rains, all the grains and fruits climb." The main feature of Grain Rain is the continuous spring rain, which is beneficial to grain growth. Rain produces hundreds of valleys, which embodies the agroclimatic significance of "Grain Rain". It is the reflection of ancient farming culture in festivals.

2. The traditional method of dividing the four seasons in China takes "Li Si" in the 24 solar terms as the starting point of the four seasons, and takes dichotomy and dichotomy as the midpoint. For example, in spring, beginning of spring is the starting point, the vernal equinox is the midpoint, and the long summer is the end point. Taking the four seasons as the beginning is suitable to reflect the climate and climate of China. Due to regional differences, western countries entered spring later than China. In the west, the four seasons begin with "splitting in two". For example, spring begins with spring and ends with the summer solstice. Western countries are located at higher latitudes, far from the intersection of Huangchi. Taking "bisection to" as the starting point of four seasons can actually reflect the local climate and phenology in western China better than "quartile". The four seasons divided by "dichotomy" and "dichotomy" in the west are one and a half months later than those divided by "Li Si" in China.