What is the origin and climate characteristics of Xiaoman?

Different from the simple distinction of four seasons abroad, ancient farmers in China divided a year into 24 solar terms to correspond to different farming stages. Xiaoman is also one of the 24 solar terms, so this issue of the old almanac will show you the origin and climate characteristics of Xiaoman.

The origin of the "twenty-four solar terms" in Xiaoman solar terms: "In mid-April, people are full when they are small, and things are full when they are small." At this time, the seeds of summer sowing crops such as wheat in the north have begun to be full, but they are not yet mature, which is about the late stage of milk ripening, so it is called Xiaoman. Agricultural proverbs in southern China give Xiaoman a new meaning: "Xiaoman is not satisfied with the broken ridge"; "Little people are full of discontent, regardless of mangoes." Use "full" to describe the amount of rain, and point out that if the field is full, there is not enough water, the ridge may crack, and even rice can't be planted after planting.

Climatic characteristics of Xiao Man

There are many rivers in the south, which reflects the climate characteristics of heavy rainfall in this area. "Little people", as the saying goes, "the long summer is small and the rivers are easy to fill", reflects the climate characteristics of heavy rainfall in South China at this time. At the same time, with the approach of the Dragon Boat Festival, Guangdong has also entered the annual "Dragon Boat Water" period. Dragon boat water has come, and the water level of the river has risen rapidly, providing a good venue for dragon boat fishing.

In the middle and lower reaches of the Yangtze River, "there is no land for small crops and little Huangmei" and "there is no rain for small crops and no water for awns". For the middle and lower reaches of the Yangtze River, if there is less rain at this stage, it may be that the Pacific subtropical high is weak and located in the south, which means that the precipitation in Huangmei season may be less. Therefore, there is a folk saying that "there is no room for a small man, and there are fewer Huangmei"; "Small full without rain, awn seeds without water".

In the middle and lower reaches of the Yellow River, when the solar terms are full, there is a saying that "the wheat is not satisfied and there is risk". The so-called "one risk" means that wheat has just entered the stage of milk ripening, and it is very vulnerable to dry and hot wind, which leads to insufficient wheat filling, shrinking seeds and reduced yield. There are many ways to prevent dry hot wind, such as building shelterbelts and spraying chemicals, which are all very effective measures.

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