Characteristics of 24 solar terms

The climatic characteristics of Xiaoman solar terms are as follows:

1, South China: "Little people are full, rivers are full". It reflects the climatic characteristics of heavy rain in this area. Generally speaking, if the cold air in the north can penetrate into the south of China, and the warm and humid airflow in the south is also strong, it is easy to cause heavy rain or torrential rain in South China. Therefore, the late Xiaoman solar term is often the tense stage of flood control in these areas.

2. The middle and lower reaches of the Yangtze River: "Small crops can't hold it, and there are few yellow plums" and "Small crops have no rain, awns have no water". 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"; There is no rain in the small field, and there is no water in the mango seeds.

3. The middle and lower reaches of the Yellow River: "If the wheat is not full, there will be risks." This "one risk" means that wheat has just entered the stage of milk ripening at this time, and it is very vulnerable to dry and hot winds, resulting in insufficient wheat filling, dry 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.

4. Jiangnan area: "Xiaoman moved three cars, but he was too busy to know him." The three cars here refer to the waterwheel, the oil truck and the silk truck. At this time, the crops in the farmland need a lot of water, so the farmers are busy turning water on the waterwheel; The harvested rapeseed is also waiting for farmers to make fragrant rapeseed oil; The farm work in the field cannot be delayed. But the silkworm babies at home should also be taken care of carefully. Around Xiaoman, silkworms will start to cocoon, and sericulturists are busy rocking the silk car nest (SAO).