Lead
Xiaoxiao is the tenth day of the 24 solar terms, and this day is also the beginning of the dog days, and our country has a total of 40 dog days.
These 40 days are not what we call the dog days, but "the first ten days, the middle twenty days, and the last ten days".
In other words, we have to endure twice as many hot days on dog days this year.
Therefore, on the day of Xiaoxia, we must be prepared to prevent heatstroke and cool down, but on the day of Xiaoxiao, we still have an old saying: "If the heat is not hot, it depends on Xiaoxiao", so what does this sentence mean?
Will dog days be hot this year?
Dog days of summer.
In ancient China, there is a saying called "dog days", which refers to the time when the temperature reaches its peak in summer, that is, after the beginning of summer and the summer solstice, it enters the "dog days".
The "dog days" are divided into three parts, namely the "first volt", "middle volt" and "last volt".
These three periods of time are also the time when summer needs to pay the most attention to heatstroke prevention and cooling.
"Chubuo" generally lasts from July 7th to July 16th, this time is due to the midsummer sunshine, the ground temperature continues to rise, and the growth of plants has entered the best time, but during this time plants need light and water, so it is easy to dry up, so people should water plants more during this time.
In addition, this time is also a "hot day" when people need to pay attention to heat prevention and cooling.
Therefore, this period of "early volt" is also called "Lao Fu", which means that this period of time is relatively hot, making people feel old, so we must drink more water during this time, clear heat with water, and eat some heat-clearing and detoxifying fruits to cool down.
After the end of the "first volt", it enters the "mid-volt" period, which generally starts on July 17 and lasts until August 16.
During these 40 days, the temperature will continue to rise, especially in August, when the maximum temperature of this month is very high, and there is also a characteristic that there are more consecutive hot days, which means that people face a longer heat wave during this time period.
And because the weather is dry and hot, people's bodies are more likely to be sunburned, and even heat stroke, so during this time period, people need to pay more attention to heat stroke prevention and cooling.
The last period is the "last one", which starts on August 17 and lasts until August 26.
During this time, after the end of the "middle volley", people have gradually adapted to the hot weather, so at the time of the "last volt", people's physical condition is generally better and not easy to be harmed by high temperatures.
But at this time, people's mental state is not very good, because the weather at this time is very hot, and even affects people's work efficiency.
At the same time, it is also easy to lead to people's "laziness" and other states, so people also need to pay attention to adjusting their work and rest time during this time to maintain a good state.
So why are there "dog days"?
This is because in the agricultural society, people need to carry out farming work, so at this time is the peak season of farming, in this season, by the midsummer sun, the temperature of the ground is higher, it is a good time for plants to grow, but during this time, plants are easy to "heat" to death, so in order to make their crops can be harvested smoothly, they also formulated the law of "dog days".
Dog days to protect yourself from the heat.
In ancient times, people did not have the equipment and tools for escaping heat and cooling down that we have today, so how did they prevent heatstroke and cool down during this time?
The ancient people's heatstroke prevention and cooling methods were mainly adjusted by daily diet, such as eating some heat-clearing and cooling foods, such as mung beans, japonica rice, etc., which can remove heat from the human body.
In addition, there is a kind of food that is also more suitable for heatstroke prevention and cooling, that is, winter melon, which itself is cold, and the effect of heat is very good, and winter melon vine leaves also have a good cooling effect, so in ancient times, people often used winter melon vine leaves to hang at the door of the house, so that it can play a role in taking away indoor heat.
In addition, during this time period, in order to prevent heatstroke and cool down, people will also choose some light foods according to the season at that time, such as melons, fruits, vegetables, etc., these ingredients contain a lot of water, which can play a role in cooling.
Therefore, at this time, people eat light food in order to prevent heatstroke and cool down to a certain extent, and there is also a food that is more suitable for heatstroke prevention and cooling, that is, cold drinks, such as popsicles, cold drinking water, etc., these foods can reduce the body's body temperature to a certain extent, and play a role in preventing heatstroke and cooling.
There are so many ways to prevent heatstroke and cool down in diet, so in life, do people have corresponding ways to prevent heatstroke?
The living environment of the ancients was not air-conditioned, and the most common thing they used was an awning to block the sun, which could reduce the room temperature, and another way was to swim in the water, which could make people feel cool to a certain extent.
The ancients would also choose to take a nap in a shady place to make people feel cooler and more comfortable, and some people would also choose to put a mat under the tree during this time to rest.
Why does "Xiaoxia" have "dog days are not hot".
What are the climatic characteristics of the Xiaoxia solar term?
Xiaoxiao is the eleventh of the 24 solar terms, and from the perspective of the 24 solar terms of the lunar calendar, Xiaoxiao means the first day of summer.
The arrival of the summer season is the season of midsummer, which is the second solar term after the arrival of the beginning of summer, and the summer has officially begun, and this day is also the season with the highest temperature in summer.
So what does the phrase "dog days are not hot" mean?
This sentence is actually a rough guess of the future climate based on the meteorological conditions of Xiaoxia.
There are many old agricultural proverbs that are used to judge dog days and winter temperatures.
1. There is thunder in the small summer and big heat, the snowflakes are big in winter, there is no thunder in the small heat and the big heat, and the snowflakes are small in winter.
This sentence is to say whether there will be thunderstorms in the two days of small summer and big summer, and if there is, then in winter, the scale of snowflakes will be relatively large.
If there are no thunderstorms in the summer and summer, the snowflakes will be smaller when it snows in winter.
2. The summer heat is like Sanjiu, and the winter is cold like Sanfu.
The meaning of this sentence is that the temperature on this day of Xiaoxia is very hot, just like the three or nine days of winter, then in the coming winter, it will be as hot as the dog days of summer.
3. Three days of small summer, three days of Dragon Boat Festival, three dog days in winter, and three dog nine in summer.
This sentence is saying that the temperature of the day of the summer can affect the temperature of the Dragon Boat Festival and the winter, if the summer and the Dragon Boat Festival are hotter these two days, then in winter, the dog days will be hotter, and the summer will be hotter.
4. There is no rain in the small summer and no rain, and the winter is cold.
If there is no rain on these two days, it will be colder in winter.
In fact, there is no essential difference between these agricultural proverbs of the ancients and the meteorological predictions we use now, and they are all used to speculate according to the laws of astronomical meteorology.
And these agricultural proverbs are not just jokes, in fact, there is also a scientific basis in them, although these agricultural proverbs are often relatively simple, but they can stand the test of practice, that is, summarized in many years of observation.
It is also these agricultural proverbs that allow people to make climate predictions based on some phenomena in nature without knowing the weather forecast.
epilogue
The arrival of the "Xiaoxia" solar term marks the official arrival of the midsummer season, which is the time when farmers are busy farming.
At the same time, it is also a time for people to escape the heat and cool down, so everyone must do a good job of preventing heatstroke and cooling down and take care of their health.