What are the origins and climatic 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 Laohuangli will take you to know the origin and climate characteristics of Xiaoman.

The origin of the "twenty-four solar terms" of Xiaoman solar terms: "In the middle of April, Xiaoman is full of everything." At this time, the seeds of summer crops such as wheat in the northern region 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 dissatisfied and breaks the ridge"; "Xiaoman is dissatisfied, regardless of mango." "Full" is used to describe the amount of rain, and it is pointed out that if there is not enough water in the field when it is full, the ridge of the field may crack, and even rice cannot be planted.

Climatic characteristics of Xiao Man

The vertical and horizontal rivers in the southern region reflect the climatic characteristics of heavy rainfall in this area. "Little man", as the saying goes, "long summer is small, and 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. When the dragon boat water comes, the water level of the river rises rapidly, which provides a good venue for dragon boat fishing.

In the middle and lower reaches of the Yangtze River, "there is no space for small crops, but there is less 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 "Xiaofeng is full of space and Huangmei is less"; "Small full without rain, awn seeds without water".

In the middle and lower reaches of the Yellow River, there is a saying that "the wheat is not enough, and the solar terms are full of risks". 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 filling, grain shrinkage and yield reduction. 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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